The LENA Pro and the LENA Research Language Environm= ent Analysis Systems are specifically designed for pediatricians, speech langua= ge pathologists (LENA Pro), and researchers (LENA Research). Both versions allow you to easily collect, process, and analyze language environment data for children 2 to 48 months of age. The system uses highly technological LENA Digital Language Processors (DLPs) and an advanced software package. The LENA Pr= o and LENA Research versions contain a client management feature that allows the = user to collect and manage multiple recordings from multiple clients or groups.<= span style=3D'mso-spacerun:yes'> The PC-compatible LENA Software can process 30 to 120 sixteen-hour recording files per month. Reports can be viewed in monthly, = daily, hourly, or five-minute resolution time intervals. Audio files may be listened to and viewed in .wav format. The so= ftware allows you to mark, organize, and find specific audio segments; note-taking features allow you to attach research or clinician notes and comments to any report or specific audio segments. All data and audio files are easily exportable to Excel. In addition, the LENA Research ver= sion provides access to the Infoture Time Segmented (ITS) file, a user-friendly XML-formatted compilation of all algorithmic analyses of the original audio file. The LENA Research version also has the capabilities to export TRS and= CHA files.

About LENA and Infoture

Infoture, Inc. was founded in Boulder, CO in 2004, w= ith the goal to develop the LENA System, the world’s first automatic spee= ch monitoring and analysis system for infants and toddlers.

The LENA System is a revolutionary tool that helps i= ncrease the amount of your data and improve accuracy. You can also manage your clie= nts and/or research participants more efficiently with the LENA Client Manager feature. Infoture’s world-class team of engineers, research scientists, linguists, and speech-language professionals has spent four years and millions of dollars researching and developing LENA. This research team gathered the world’s largest and most comprehensive database of spontaneous parent-child talk recorded in the nat= ural home environment, resulting in over 20,000 hours of speech data.

LENA Accurately and Reliably Measures the Nat= ural Language Environment

The highly technological LENA System Digital Language Processor (DLP) reliably collects data in the natural home environment; the refined software package analyzes the data and provides percentile rank comparisons through a validated developmental snapshot as well as quantified speech language environment data.

The LENA DLP captures every utterance between a pare= nt, or other caregiver, and the child. The LENA Language Environment Software, which is based upon cutting-edge algori= thmic-based speech recognition technology, uses advanced speech modeling techniques to analyze conversations and noise within the natural home environment. Reports generated from the analyses present the number of adult words the child hears on the monthly, daily, hourly, and five-minute time resolutions.&= nbsp; The reports also provide the number of child vocalizations (sounds or words uttered by the child) and conversational turns (parent-child interactions) that occur within the same time resolution scales. The LENA Developmental Snapshot is an age-appropriate questionnaire that provides an estimated developmental age compared with a child’s chronological age= up to 48 months. This resource w= as designed by Infoture scientists and Speech Language Pathologists and has be= en tested and validated.

For further information on the reliability and accur= acy of algorithmic-based segmentation, adult word count estimates, child vocalizat= ion classifications, and the Developmental Snapshot please refer to www.infoture.org/research.as= px to view Infoture Technical Report (ITR) 5, titled “Reliability of the LENA™ Language Environment Analysis System in Young Children’s Natur= al Home Environment.”

What’s included

Your LENA System should contain the following items:=

1.)&= nbsp; LENA Digital Language Processor: The DLP captures the words spoken to a child and the audio/language environment. The DLP is placed in the pocket of a child’s LENA Clothing.

2.)&= nbsp; LENA Professional or LENA Research Language Environment Software: Your LENA System comes with an installation CD, which will automatically install the LENA La= nguage Environment Software when inserted into the computer CD drive. The software will analyze the audio files captured by each DLP.

3.)&= nbsp; USB cable: Your LENA System comes with a USB cable. Use it to connect to the computer.

4.)&= nbsp; LENA Wall Charger: The LENA Wall Charger plugs into a= wall outlet and connects to the DLP via USB cable to recharge the DLP battery.

Minimum System Requirements

Processor

Desktop: 2.2 GHz
Laptop: 1.3 GHz

Operating System

Windows Vista

Windows XP with SP2=
(Not Mac-compatible)

Memory

512 MB

Available Disk Space

10 GB

Video Card

High Color (32-bit)=

Flash player

Version 8.0.24=

Getting Started: Installing LENA and charging= the DLP

1.) Charge the DLP by connecting it to the Wall Charger with the USB cable. Make sure the Wall Charger is plug= ged in and the DLP display reads “Charging.”

2.) Place the LENA Language Environment Software installation CD into the CD-ROM of t= he computer. Follow the on-screen instructions to install the software.

3.) Remove the LENA Language Environment Software installation CD from the computer CD= -ROM after installation has completed and store the CD in a safe place.

If installation fails to launch automatically, follow = these steps:

1.) Insert the CD into the CD drive

2.) If the Auto play fails to start, select Start from Windows Explorer

3.) Select Run > Browse > D: drive [or whichever drive is your CD drive]

4.) Select autorun.exe

5.) Read and agree to the Terms and Conditions

DLP Interface

Figure A. DLP Interface

DLP Modes

C= harging &= nbsp; &nbs= p; The DLP is charging. Screen displays “Charging” when the DLP is plu= gged into the Wall Charger or when it is plugged into the computer via USB cable= but not transferring audio. It is best to leave the DLP plugged into the Wall Charger overnight to ensure a complete charge.
(Note: Always fully recharge the DLP before every recording day.)

C= harged &= nbsp; &nbs= p; The DLP is fully charged and ready to use.

L= ow Battery = &nb= sp; The DLP battery is depleted and recording has stopped. The DLP must be connecte= d to the Wall Charger and charged before you continue recording.

S= leeping &= nbsp; &nbs= p; This is the default mode. It appears upon power-up when the DLP has no stored au= dio. If the DLP is left sleeping for more than 15 minutes it will automatically = turn off and the display screen will be blank.

R= ecording &= nbsp; &nbs= p; The DLP is recording. Screen displays “Recording” when the ‘R= EC’ button is pressed and held for 3 seconds. Running recording time is display= ed in hours, minutes, and seconds.

P= aused &= nbsp; &nbs= p; The DLP is paused. Screen displays “Paused” when RECORD/PAUSE butto= n is pressed and held for 3 seconds during recording. Elapsed recording time is displayed in hours, minutes, and seconds. If the DLP is left paused for more than 15 minutes it will turn off and the display screen will be blank. Press the POWER button to turn the DLP on again. It will be in “Paused̶= 1; mode and you may resume recording by pressing the ‘REC’ button.=

<= span style=3D'mso-tab-count:1'> &= nbsp; &nbs= p; &= nbsp; &nbs= p; (Note: It is not advisable to pause the DLP for = long periods of time during the recording day, such as when a child is napping, because the recording time might total less than 10 hours and no percentile rank information will be given in the reports.)

M= emory Full &nb= sp; = The DLP will not hold any more audio data. Screen displays “Memory Full” when the DLP has recorded for 16 continuous hours. When the mem= ory is full the DLP will turn off after 15 minutes, and the display screen will= be blank. DLP will not be able to record more data until current recording is processed.

A= udio Transfer = ; &n= bsp; The DLP is connected to the computer via USB cable and the audio is being transferred.

P= ower Off &= nbsp; &nbs= p; DLP has been powered off by pressing the POWER on/off button for 3 seconds. “Power off” displays briefly on the screen before going blank.<= /p>

Using the DLP

The following procedure explains how to successfully= use the LENA DLP. Always make sure the DLP is fully charged before the recording da= y. We recommend recording for a full day — <= /span>from wake-up to bedtime. This will give the most accurate information about a ch= ild’s language environment. The DLP can record up to a maximum of 16 hours.

Please follow the instructions below in order for th= e DLP and LENA software to work properly. The Getting Started pamphlet (which is available on www.Infoture.org, www.Lenababy.com, and the software in= the Client Manager Screen à Help à Getting started) is also available to aid in this process. The Getting Star= ted pamphlet can be downloaded, printed, and given to off-site users and/or par= ents of the child using the DLP. These instructions can be used by a professiona= l or researcher, or given to a parent of a child who has been instructed to use = the DLP.

Step 1. Fully charge the LENA DLP before using. This can t= ake up to 3 hours if the battery is drained.

· Connect the DLP to the wall charger using the USB cable.

· The display screen on the LENA DLP should re= ad “Charging.”

· When the battery is fully charged the display screen will read “Charged.”

Step 2. Record

· When you’re ready to record, have the = LENA clothing or vest nearby, as you will need to put the DLP into the front poc= ket and dress the child in the LENA clothing immediately after you press the “REC” button.

· Make sure the DLP is on. Press and hold the “REC” button until display screen reads “Recording.” This marks the beginning of the recording.

· Immediately place the DLP into the front poc= ket of the LENA Clothing, snap the pocket closed, and dress the child in the clothing.

Note: To ensure accurate percentile ranking, recor= ding time should exceed 10 hours. The LENA software will not be able to process audio that is less than 10 minutes in length.

Step 3. Remove the DLP from the child’s pocket

· At the end of the day, remove the DLP from t= he child’s LENA clothing pocket, and press the power button to turn the = DLP off.

Step 4. Connect the DLP to the computer

When you co= nnect the DLP to the computer, the DLP Connect Dialog window will appear. This wi= ndow allows you to assign an existing child to a DLP or add a new child and assi= gn that child to a DLP. You may also view the DLP history.

Assign a DLP to an existing child

Plug in a DLP.

Select the child you want to assign a DLP.

Click the “Assign” Button.The child will automatically be assign= ed to the attached DLP.

Processing will begin.

=

Assign a DLP to a new= child

Plug in a DLP.

Click the “Add Child” button.

Enter the child first name, last name, birthdate, and gender.

Click the “OK” button.

Processing will begin.

Step 5. Transfer the audio data

Transferring the audio file moves data from the DLP = and stores it onto the computer. Processing (as described in Step 6) allows the LENA software to analyze the data and produce reports.

·   By simply connecting the DLP to the computer, the LENA software will launch automatically. If not double click the “LENA” icon on the desktop and connect the DLP again.

·   If you have not already added a child, a “Child Information” box will appear prompting you to fill in the child’s information, such as first name, last name, birthdate, and gender. You only have to add information for each child once.

·   The DLP status screen will open. It may take= a few minutes for the computer to identify the DLP. Once the software verifies that an audio file exists on the DLP, the DLP display screen should read “Audio Transfer.”

·   Audio will automatically begin transferring. Audio transfer will take approximately 2 to 5 minutes.

·   Once the transfer completes you may remove t= he DLP from the computer and recharge it.

Step 6. Processing the audio data

·   After the audio has transferred, the software automatically begins processing the file and takes you to the “Digital Language Processor” screen.

·   The status column will read “Processing.”

·   Due to the complexity of the LENA software, please allow anywhere from 3 to 16 hours for processing time. Processing ti= me depends on the language environment, computer speed, and processing power.<= /p>
·   We recommend allowing the LENA software to process overnight. The software can be set to automatically shut the comput= er down when processing is complete. (Please see the Settings menu in the soft= ware.)

Note: Charge the DLP overnight to prepare for the = next recording day. Please refer to Step 1. Charge the DLP.

Note: You can upload multiple recordings, transferring data from one DLP at a time. Only = one DLP connection at a time via USB is supported. Each recording is stored in = a queue and will automatically begin processing in the order that it was uploaded. =

Step 7: View the LENA Reports

·   After processing is complete click the “LENA Reports” button.

·   The Report List opens by default.

·   The following reports are available: Adult Words, Conversational Turns, Child Vocalizations, Audio Environment, Compos= ite View, and Report List.

·   Navigate through the reports easily by selec= ting the appropriate box located on the bottom row at the bottom of the screen.<= /p>
Note: Report information can be viewed by month, d= ay, hour, and 5-minute.

Note: Roll-over features allow you to see addition= al information, such as Estimated Mean Length of Utterance (EMLU) and Standard Score compared to human assessments.

Step 8. Print the Reports (optional)

·   Select the report which you’d like to print from the bottom navigation menu.

·   Click the printer icon in the bottom left-ha= nd corner of the screen.

·   Click “OK” to print the report(s= ).

Step 9. Export the data to Excel (optional)

·   From the Report List, click the green Excel button in the bottom left-hand corner.

·   Select the child (or children) you wish to v= iew.

·   Selecting the Report Detail will enable you = to view as much or as little detail as you wish. Selecting “Monthly (Dai= ly Averages)” will provide you with little detail while selecting “= ;5 Minute Detail” will provide you with a great deal of detail.

·   You may also specify a specific date range by selecting the “Specify Dates” radio button and entering the date range you desire. If you would like to include all the reports for the child/children click the “All Reports” radio button.

·   Once you have made your selections, click the “Element to Excel” button. You will be prompted with the Excel Export File dialog. You may save the Excel file in any folder you wish.

·   Open the file with Excel (or any spreadsheet program).

Step 10. Export TRS, CHA, and/or ITS files (Research versi= on only) (optional)

For detailed explanations of the TRS, CHA, and ITS f= iles, please read the descriptions under “What is the ITS file" in this User Guide.

·   From the Report List, click the green Excel button in the bottom left-hand corner.

·   Select the child (or children) you wish to v= iew.

·   You may also specify a specific date range by selecting the “Specify Dates” radio button and entering the date range you desire. If you would like to include all the reports for the child/children click the “All Reports” radio button.

·   Select the files you wish to export under the “Export” section. Select any of the following:

o      = “Recording to TRS”

o      = “Recording to CHA”

o      = “ITS”

·   You will be prompted with the Browse for Fol= der dialog. You may save the exported file in any folder you wish.

Note: For additional information on exporting .trs, .cha, and ITS files, please reference “What is the ITS file" in = this User Guide.

User Interface

The User Interface consists of shortcut icons to acc= ess the Client Manager, LENA Reports, Developmental Snapshot, Digital Language Processor, and Settings features. In the following sections, we will describe each feature as well as = how to navigate through each page.

Figure B. Sample image of the User Interface

Client Manager Screen

The Client Manager page allows you to create, edit, = store, and manage all clients or research participant data. From the Client Manager screen you can access all other LENA software features.

The Client Manager is used to organize children by individuals and groups. Speci= fic child information includes each child’s last name, first name, birthd= ate, gender, month and year of enrollment, child key, child ID, and DLP (if assigned). Specific features within the Client Manager include options for adding, editing, deleting, activating, and inactivating children, as well as adding, editing, and deleting groups. You= can also assign and unassign a DLP to a child.

The client manager will track each participant’= ;s demographics, associated recordings, and developmental age. All Adult Words, Conversational Turns, Child Vocalizations, and Developmental Snapshot repor= ts are filed under a single client or study participant. The Report List summary provides an overview of all activity for each client recorded.

You may assign each child an ID that can be associat= ed with client billing ID numbers or a research ID code.

Add a group (optional)

1.)   Click the “Add” button located in the “Client/Group” information box.

2.)   Fill in the name of the group and any notes you wish to store about this particu= lar group.

3.)   Click the “Save” button to save your changes. Click the “Cancel= ” button to discard your changes.

Note: If the “Add” button is not visible,<= span style=3D'mso-bidi-font-family:Arial'> click the “Unselect” butt= on and it will appear.

Add a child

1.)   Click the “Add” button located in the “Child” section. If= the “Add” button is not visible, click the “Unselect” button and it will appear.

2.)   Fill in the required fields: First Name, Last Name, Birthdate, and Gender.

3.)   Click the “Save” button to save your changes. Click the “Cancel= ” button to discard your changes.

In this menu, you also have the option of assigning an External ID number for organization purposes. Complete these sections as desired.

*You do not have to add an External ID initially. You = will be able to go in later and add more detail with the Edit option. Please note: Child Key number is automatically ass= igned.

Add a new child to a group

1.)   Click the “Add” button located in the “Child” section.

2.)   In the “Child Information” box, fill in the required fields: First Name, Last Name, Birthdate, and Gender.

3.)   Remain in the “Child Information” box and click the ellipses located n= ext to “Client/Group.” A list of the existing Client/Groups appears.

4.)   Select the desired group to which you want to assign the child.

5.)   Click the “OK” button.

6.)   Click the “Save” button to save your changes. Click the “Cancel” button to discard your changes.

Add an existing child to a group

1.)   From the Client Manager menu, select a child from the Child section.

2.)   Click the “Edit” button located in the right-hand side window.

3.)   Click the ellipses box located next to the “Client/Group.”

4.)   Select the desired group to which you wish to assign the child.

5.)   Click the “OK” button.

6.)   Click the “Save” button to save your changes. Click the “Cancel” button to discard your changes= .

Unassign/Remove an existing child from a group
1.)   In the “Client/Group” menu select the group to which the child belongs.

2.)   Select the child you want to unassign from the “Child” menu.

3.)   Click the “Edit” button.

4.)   In the “Child Information” box, click the ellipses located next to “Client/Group.”

5.)   Select the group to which they belong.

6.)   Click the “Unassign” button.

7.)   Click the “OK” button.

8.)   Click the “Save” button to save your changes. Click the “Cancel” button to discard your changes.

View All Children

If you want to view all children in the “Child&#= 8221; menu make sure the “Unselect” button has been selected in the “Client/Group” and “Child” menus.

View all children in a particular group
1.)   Select the desired group.

2.)   Clients within that group will appear under “Child” menu.

Edit a Child’s Information

1.)   Select a child from the “Child” menu.

2.)   Click the “Edit” button.

3.)   Edit First Name, Last Name, Birthdate, Gender, External ID, and Client/Group as needed.

4.)   Click the “Save” button to save your changes. Click the “Cancel” button to discard your changes.

Note that c= hanges to a child’s birthdate or gender will not affect previously processed reports.

If you want t= o view all children in the “Child” menu make sure the “Unselect̶= 1; button has been selected in the “Client/Group” and “Child” menus.

Edit a Group

1.)   Select a group from the “Client/Group” menu.

2.)   Edit Name, External ID, and Notes as needed.

3.)   Click the “Save” button to save your changes. Click the “Cancel” button to discard your changes= .

Inactivate a child

1.)   Select the child you want to mark inactive.

2.)   Click the “Inactivate” button.

3.)   Click the “OK” button.

Reactivate a child marked inactive

1.)   Click the “Show Inactive” check box in the “Filters” wind= ow located at the bottom of the Client Manager screen.

2.)   Select a child in red.

3.)   Click the “Reactivate” button. The child will automatically be reactivated.

View Inactive Children

1.)   Click the “Show Inactive” check box in the “Filters” wind= ow located at the bottom of the Client Manager screen.

Hide Inactive Children

Uncheck “Show Inactive” check box under the “Filters” menu.

Assign a DLP to a child

1.)   Select the child you want to assign a DLP.

2.)   Click the “Assign DLP” button.

3.)   Select the DLP you wish to assign to that child.

4.)   Click the “OK” button.

5.)   The child will automatically be assigned to the DLP number.

Unassign a DLP to a child

1.)   Select the child you want to unassign.

2.)   Click the “Unassign DLP” button.

Delete a group

1.)   Select any group located in the “Client/Group” menu.

2.)   Click the “Delete” button.

3.)   Click “OK” to delete the group or “Cancel” to go back.

Note: When you delete a group you do not delete the encompassing child information. Deleting child information must be done separately. (See “Delete a child.”)

Delete a child

1.)   Select the child you want to delete.

2.)   Click the “Delete” button.

3.)   Click “Yes” to delete, or click “No” to cancel.

4.)   You can only delete one child at a time.

When you delete a child all information will be lost. = Please see “Inactivate a child̶= 1; to learn how to store all child information while deleting a child’s = name from the “Child” menu.

Exit LENA

Click the “open door” icon on the lower ri= ght-hand side of the Client Manager.

Pull-down Menus on Client Manager

These four pull-down menus are: Admin, Advanced, and H= elp. They can be accessed by left-clicking your mouse button.

Admin

Print Snapshot Form

Advanced

Refresh Database Cache*

Test DLP

* The purpose of the Database Cache is to increase per= formance of the application when viewing reports, particularly when switching the current child or date.

It is possible in certain circumstances (i.e. applicat= ion or system crash) that the Database Cache could become out of sync with the rec= ords in the database.

If it appears that certain report data for a child see= ms to be missing or incomplete, the Refresh Database Cache operation can be used = to resynchronize the cache with the database. This operation normally complete= s in less than a minute and is completely safe. No information is deleted from t= he database.

Help

About

License Agr= eement

Getting Sta= rted

User Guide = (.html)

Online Reso= urces

Contact Us

Release Notes

LENA Reports Screen

The LENA reports can be accessed from the “LEN= A Reports” icon. The report categories are:

1.)   Report List

2.)   Adult Words

3.)   Conversational Turns

4.)   Child Vocalizations

5.)   Audio Environment

6.)   Composite View

Note: Order may vary.

All reports are available in monthly, daily, hourly,= and five-minute resolutions; thus the child’s language environment may be studied over a variety of ranges for maximum analytical capability. Please note that the y-scale is ad= justed appropriately for each time-segment resolution. You may access all reports by clic= king the “LENA Reports” icon on the User Interface. Toggle between the reports by sele= cting the appropriate tab at the bottom of the LENA Reports page.

Report List

The Re= port List allows you to view the results of all data in an aggregated, conde= nsed format. You may readily acces= s this feature by clicking on the “pie chart” or LENA button icon in t= he lower right-hand region of the Client Manager.

=

In this d= isplay, you may view the date for each recording, the length of the recording, as w= ell as the number of Adult Word Counts (AWC), Conversational Turns (CT), or Chi= ld Vocalizations (VOC). Any comm= ents or marks made on a particular data set will be visible for additional information. You may view either the estimated counts or the percentile information. Click the % icon= on the upper left to view percentile information; click the # icon on the lower left to view the estimated counts (Figure C).   Session and time-segment not= es are readily incorporated and accessible.

The Repor= t List also features Automatic Vocalization Assessment (AVA). AVA is an ana= lysis tool that measures a child’s expressive language, provides Estimated = Mean Length of Utterance (EMLU), and estimates the child’s language development age based on the recording. AVA also provides a standard score = that is highly correlated to the REEL and PLS at .73.

The Repor= t List feature also allows you to print, email, or export selected reports to Excel.

V= iewing Report List information

LENA Pro an= d LENA Research automatically display the Report Counts (numerical).

=

To view Report Percentiles (percent), cli= ck the percent sign (“%”)= on the Report column heading.

=

To view Report Counts (numerical), click = the pound sign (“#”) on the = Report column heading.

E= xpand/Collapse (Show More or Less Detail)

Click the t= riangle symbol on the Report column heading to switch between “List View̶= 1; and “Detail View.”

E= mailing Report Data

To email a child’s Report List, click the gold Outlook icon in the bottom left corner. This produces a PDF attachment to the email.

Note: The u= ser must open the PDF attachment using Adobe Reader 8.0 or greater.
Note: The user must have an email client (Outlook, Outlook Express, etc.) s= etup on the computer in order to utilize this feature.



Figure C. Sample view of the Reports List page

=

Developme= ntal Snapshot information is readily accessible from the Report List. Dates containing Snapshot data are highlighted in red. To view t= he Snapshot for a specific date select the date. The Snapshot is viewable via bidirectional navigation; additionally, notes and responses to the Snapshot questionnaire are listed to the right. The grid-like display on the right-h= and side is color-coded to represent advanced, within normal limits, or at risk regions. Scroll over each cir= cular data point for detailed chronological and developmental age information.

=

Figure D. A Report List featuring Developmen= tal Snapshot data for a specific date

Adult Words

The Adult W= ords Report provides feedback about the key child’s language environment. (The key child i= s the child wearing the LENA DLP.) As the software processes the recorded audio f= ile algorithmically the number of Adult Words spoken to the child during the co= urse of a 10- to 16-hour recording session are segmented and counted. The Adult Word Counts are plotted = on a chart for easy viewing.

Figure E. LENA output revealing Adult Word data on a monthly time scale

Figure F. LENA output revealing Adult Word data on the five-minute time scale

How to Navigate

The y-axis displays the total number of adult words = spoken per unit time period. The x-a= xis displays the dates for which data exists (in monthly, daily, hourly, or five-minute increments). Rolling the cursor over any data bar will present = you with a tool tip providing more detailed statistics^[1] . Right-click on any segment to mark, play, or export the audio for that segment. To view time increments of increas= ingly higher resolution, drill down by double-clicking the specific data bar of interest.

Conversational Turns

The Conversational Turns (CT) Report provides= a count of the total number of conversational interactions the child engages = in with an adult. A Conversational Turn is a vocal sound such as a coo, squeal, babble, or word initiated by a child with a subsequent response by an adult within five seconds, or vice versa. Reports are available in monthly, daily, hourly, or five-minute time segments. Overlapping speech segments, coughs, cries, and other vegetative and fixed signals do not contribute to the Conversational Turns count.

How to Navigate

The y-axis displays the average number of conversati= onal turns per day during the month. The x-axis displays the months for wh= ich there is data. The most recent month is the last data point on the progress= ion line. Similar to the Adult Word Report, rolling over a data point will present you with a tool tip providing more detailed statistics. Right-click= on any segment to mark, play, or export the audio for that segment. To view time increments of increas= ingly higher resolution, drill down by double-clicking the specific data bar of interest.

Tracking Possible Language Delays

If there is a possible language delay, a yellow data point will appear on the Conversational T= urns daily report. A yellow and blue data point will appear in the Conversational Turns monthly report. (See Figure G.) This feature is not available in any other of the LENA Reports.

Conversational Turns Monthly: Possible Language Delay=

: When the yellow and blue Possible Language Delay data point appears in the CT monthly report it signifies that there were one or more days in the daily view that were flagged as Possible Delay.

Figure G. Composite View report (monthly view) with po= ssible language delay data point shown in Conversational Turns report

Conversational Turns Daily: Possible Language Delay

: When the yellow Possible Language = Delay data point appears in the CT daily report it signifies that there is a poss= ible language delay detected in that day.

Figure H. Composite View report (daily view) with poss= ible language delay data point shown in Conversational Turns report (yellow data point)

Rollover Tooltips

What is shown in the Rollover Tool varies with each re= port. In the Conversational Turns report (daily view) the following features appl= y:

·   Average scores are shown only if they are available

·   AVA information (Standard Score, EMLU, and Developmental Age) will be available

·   Average Score will not be displayed if you h= ave not met the 3-day recording criteria

If there is a Possible Language Delay the Conversation= al Turns (monthly view) Rollover Tool will not report specific AVA information. Instead, the tool will display “Possible Language Delay” in red. (See image below)

Figure I. Conversational Turns (monthly) Rollover Tool= with Possible Language Delay

For further information on Conversational Turn count= s, please refer to www.lenab= aby.com/research.aspx to view ITR 4, titled “The LENA™ Language Environment An= alysis System: The Infoture Time Segment (ITS) File”

Child Vocalizations

The Child Vocalizations Report provides an estimate = of the number of continuous speech segments spoken by the key child during a unit = time period. A child vocalization = is a speech segment spoken by the key child bounded by a pause of greater than 3= 00 milliseconds. Non-speech sign= als such as cries, vegetative sounds, or other fixed signals are not counted as child vocalizations. Child vocalization data is available in monthly, daily, hourly, and five-minute time increments.&n= bsp;

For further information on identification and proces= sing of Child Vocalizations, please refer to www.infoture.org/research.as= px to view ITR 5 and ITR 6, titled &#= 8220;Reliability of the LENA™ Language Environment Analysis System in Young Children’s Natural Home Environment” and “Transcript= ional Analyses of the Infoture Natural Language Corpus.”

Figure J. Sample of the daily Child Vocalization report

Figure K. Sample of the five-minute Child Vocalization report

How to Navigate

The y-axis displays the total number of child vocalizations per month, day, hour, or five-minute segment. The x-axis displays the dates for which you have data. For detailed statistics, = roll over any data bar. Rolling ov= er and clicking the background Percentile Zones will reveal an explanation of the = zone in the Information Window. Right-click on any segment to mark, play, or exp= ort the audio for that segment. T= o view time increments of increasingly higher resolution, drill down by double-cli= cking the specific data bar of interest.

Audio Environment

The Audio Environment Report reveals the amou= nt of audio data components present within the key child’s language environ= ment on a monthly, daily, hourly, or five-minute time scale. Audio data components are segmente= d into meaningful speech, distant speech, TV, noise, and silence & background. Scrolling over ea= ch data bar reveals the percentage and duration of each audio component for th= at period (Figure L).

Meaningful: Usable, distinguishable audio tha= t is included in the reported information.

Distant: Audio typically coming from six or m= ore feet away from the DLP^[2].

TV: Audio from television, radio and other electronic noise.

Noise: Rattles, bumps, and other non-human signals.

Silence & Background: Quiet or vegetative sounds or silence.

For a more detailed description of these, please see= ITR 03, titled “The LENA™ Language Environment Analysis System: Aud= io Specifications.”

Figure L. Sample of the Monthly Audio Environment Repo= rt

Figure M. S= ample of the Hourly Audio Environment Report

How to Navigate

The y-axis displays the total number of words per mo= nth, day, hour, or five-minute segment. The x-axis displays the dates for which you have data. For detailed statistics, roll over any data bar. For the detailed five-mi= nute report, the y-axis displays the duration in seconds of this segment. =

Composite View

The Composite View Report provides a composit= e view of the child’s language environment.= This report includes an aggregated view of the Adult Words, Conversational Turns, Child Vocalizations, and Audio Environment Reports. The data from each report are alig= ned along the same time axis for easy comparison between the reports (Figures N= , O). As with all reports provided with = LENA Pro and LENA Research, users can select one of four time frames: monthly, daily, hourly, or five-minute resolution.&= nbsp; Click on any data bar in any graph to reveal a full-screen view of t= hat particular chart.

Figure N. Sample Composite View Reports of monthly time interval

Figure O. Sample Composite View Reports of the five-minute time interval

Navigating through LENA Reports

Figure P. Report navigation bars

Figure Q. Report data picker

Select a different child from within a report=

1.)   At the top left portion of the Reports screen select the drop-down arrow locat= ed next to the current child’s name.

2.)   Select child from the list.

Navigate through multiple time frames

Choose between 5-minute, hourly, daily, and monthly vi= ews by selecting the (-) and (+) buttons located in the time bar at the top right = of the Reports screen.

Navigate through multiple dates

Navigate between dates by selecting the (◄) and (►) buttons located in the date bar. Please refer back to Figure O. a= nd Figure P.

Developmental Snapshot Screen

What is the Developmental Snapshot?

The LENA Developmental Snapshot is an age-appropriate questionnaire that provides an estimated developmental age compared with a child’s chronological age up to 48 months. This resource was designed by Info= ture scientists and Speech Language Pathologists and has been tested and validat= ed. We suggest that you administer the LENA Developmental Snapshot once every o= ther month to track a child’s developmental progress. The Snapshot is a measure of the k= ey child’s receptive and expressive language development compared to the child’s chronological age.

Figure R. The Developmental Snapshot

Administering the Developmental Snapshot

The Developmental Snapshot is a parent-answered questionnaire. The parents may fill this out and get a printed copy.

The parent will:

Check the box for each question indicating whether= or not the key child is consistently demonstrating the task.

For example, check “yes” if:

A child consistently demonstrates the skill or beh= avior.

A child has consistently demonstrated the skill in= the past and has moved on to other skills.

NOTE: Do not check “yes” unless a chil= d has demonstrated the behavior more than once.

Check “not yet” if:

A child has not yet consistently demonstrated the = skill or behavior.

You may find that a child is already doing many of= these items (or may have done them at some point in the past), while other items a child may not be doing yet. This is very common.

Begin with the first question and progress through e= ach one until you answer “not yet” for five questions in a row.&nbs= p; At that point you can stop filling out the questionnaire. Click the ‘Submit’ button to view the results (Figure S).

Figure S. The Developmental Snapshot Questionnaire

Fill out the child’s first Developmental Snapshot Questionnaire

1.)   Select a child in Client Manager.

2.)   Click the Developmental Snapshot icon.

3.)   The Developmental Snapshot Questionnaire will appear.

4.)   Once complete – or once you have selected “Not Yet” 5 times in= a row – click the yellow “Submit” tab that pops up at the bottom of the questionnaire.

5.)   Click the “Submit” button to view the new Developmental Snapshot.

Print the Developmental Snapshot Questionnaire

1.)   Click the printer icon.

2.)   Select the desired printer.

3.)   Click the “OK” button.

Viewing a past Questionnaire

1.)   Return to Report List.

2.)   Select a date the child took the Developmental Snapshot. “Snapshot” will display under the Audio Environment column= .

3.)   Click the “<” to Show Less Detail.

View past Developmental Snapshots

Select “Yes” or “Not Yet” appropriately until the yellow “View Snapshot” tab pops up at the bottom of the questionnaire.=

1.)   Select “View Snapshot”

Start a new Developmental Snapshot Questionnaire

Click the “Start Over” button to clear all answers and start anew.=

=

Ex= port Data

Set Export Location for Auto Export

All exported files containing report information will automatically save in your designated folder after each recording.

1.)   From the Report List, click the green Excel button in the bottom left-hand corne= r.

2.)   Check the “Set” button in the Automatic ITS Export section.

3.)   Click the “Choose Path” button.

4.)   You will be prompted with the “Set Automatic ITS Export Path” dialo= g.

5.)   Click the “Browse” button. You may save the exported file(s) in any folder you wish.

6.)   Click the “OK” button to make your folder selection.

7.)   Click the “OK” button again to dismiss the “Set Automatic ITS Export Path” dialog.

Note: You may change the path any time you like by cli= cking the “Choose Path” button. If you wish to turn off the automatic export feature uncheck the “Set” button before your next audio = file processing.

Export Report data to Excel

1.)   From the Report List, click the green Excel button in the bottom left-hand corne= r.

2.)   Select the child (or children) you wish to view.

3.)   Selecting the Report Detail will enable you to view as much or as little detail you w= ish. Selecting “Monthly (Daily Averages)” will provide you with litt= le detail while selecting “5 Minute Detail” will provide you with a great deal of detail.

4.)   You may also specify a specific date range by selecting the “Specify Dates” radio button and entering the date range you desire. If you wo= uld like to include all the reports for the child/children click the “All Reports” radio button.

5.)   Once you have made your selections click the “Element to Excel” butt= on. You will be prompted with the Excel Export File dialog. You may save the Ex= cel file in any folder you wish.

6.)   Open the file with Excel (or any spreadsheet program).

Export TRS, CHA, and/or ITS files (Research version only)=

For detailed explanations of the TRS, CHA, and ITS f= iles, please read the descriptions under “What is the ITS file" in this User Guide.

1.)

View all children in a particular group 1.) Select the desired group. 2.) Clients within that group will appear under “Child” menu.

Rollover Tooltips

Export TRS, CHA, and/or ITS files (Research version only)=

View all children in a particular group
1.) Select the desired group.

2.) Clients within that group will appear under “Child” menu.