Room Detail Report
The Room Detail Report gives insight into hourly talk patterns at the room level.
An expansion of the Hourly Breakout graph from the Room Summary Report, it shows Conversational Turns in the context of Adult Word estimates and the classroom sound environment.
The cumulative graphs provide a visual representation of change over time.
Click on each item below to learn more.
LENA Day Adult Words shows the average number of adult words spoken to or near children per hour for each LENA Day.
- The lines and bands behind the bars provide a comparison to LENA’s normative sample.
- The dark line represents the average hourly adult word count in a home environment.
- The lighter band shows the average in preschool/child care settings.
- This line does not adjust by average age.
- Hover over any bar to see the numeric value.
The daily measure on the left is not the average of the hourly bars on the right. (Why not?)
LENA Day Adult Words per hour = All adult words / Total recording duration * 3600"Total recording duration" means the sum of all children's recording durations.
"Recording duration" is based on a combination of data detection and hard cutoffs:
- Each child’s eligible LENA Day data starts when the first adult word is detected in that recording.
- Each child’s LENA Day ends at 5 PM or when speech activity ends and doesn't resume - whichever is earlier. For example, the child's LENA Day can end before 5 PM if the recorder is turned off, or if the vest is removed and stowed in the covered LENA bin.
- The "recording duration" is the time between the start and the end and is measured in seconds.
Adult Words - Hourly Breakout shows the average number of adult words spoken to each child in each hour of the selected LENA Day. It's the pattern of talk in the room for the day.
- Any hour with at least 30 minutes of recording time from one or more children is displayed, though the 4 PM hour.
- Report opens to the current day. Click any daily bar, or use the black arrow under the daily graph, to see hourly details for the other days.
- Hover over any bar to see the numeric value.
Hourly bar calculations are simple for hours when all children contribute a full hour of data:
Adult words in an hour = Sum of all words in the hour / Total recording duration for the hourWhen one or more children contribute less than a full hour, typically at the beginning and end of the day, special rules apply.
Partial hour rules
- For any clock hour, the calculation ignores recordings that contribute fewer than 30 minutes of data to that hour.
- Where we don’t have enough data for a given hour, we don’t create an hourly bar. For example, if children are present for only 15 minutes of the 7 am hour, we don’t create a 7 am bar. The duration is too short for a meaningful hour calculation.
The scale of the graph automatically adjusts to fit the highest hour. When clicking through multiple days, take into account these changes - the heights of the bars alone can be deceiving!
LENA Day Conversational Turns shows the average number of conversational turns per hour for the classroom on each LENA Day.
- The lines and bands behind the bars provide a comparison to LENA’s normative sample.
- The dark line represents the average hourly conversational turns in a home environment.
- The lighter band shows the average in preschool/child care settings.
- The bands automatically adjust based on the average age of the children in the classroom.
- Hover over any bar to see the numeric value.
- Stars on this graph represent the same stars earned on each Room Summary Conversational Turns per Hour graph, not additional stars. See here for more information on calculations and star rules.
The graph is a cumulative display of the Conversational Turns per Hour from the Room Summary report.
See here for more information on calculations and star rules.
The daily measure on the left is not the average of the hourly bars on the right. (Why not?)
Conversational Turns - Hourly Breakout on the right shows the average number of turns each child experienced in the selected LENA Day, hour by hour. It's the pattern of interaction in the room for the day.
- Any hour with at least 30 minutes of recording time from one or more children is displayed, though the 4 PM hour.
- Report opens to the current day. Click any daily bar, or use the black arrow under the daily graph, to see hourly details for the other days.
- Hover over any bar to see the numeric value.
Hourly bar calculations are simple for hours when all children contribute a full hour of data:
Turns in an hour = Sum of all Turns in the hour / Total recording duration for the hourWhen one or more children contribute less than a full hour, typically at the beginning and end of the day, special rules apply.
Partial hour rules
- For any clock hour, the calculation ignores recordings that contribute fewer than 30 minutes of data to that hour.
- Where we don’t have enough data for a given hour, we don’t create an hourly bar. For example, if children are present for only 15 minutes of the 7 am hour, we don’t create a 7 am bar. The duration is too short for a meaningful hour calculation.
The scale of the graph automatically adjusts to fit the highest hour. When clicking through multiple days, take into account these changes - the heights of the bars alone can be deceiving!
The LENA Day Audio Environment/Clear Speech graph estimates the amount of the sound environment that is made up of near and clear human voices, and is displayed as a percent of the total recording time.
- Clear speech is any adult or child vocal output not dominated by noise, overlapping speech, or electronic media sounds (TV, radio, sound system, "talking toys," etc.).
- Clear speech is a proxy for the amount of language input and output available to the child
- Clear speech typically makes up about 20 percent of the sound environment in child care settings. When clear speech falls below 10 or 15 percent, consider whether excessive noise levels may be interfering children's ability to hear, attend to, and absorb language.
Hourly Audio Environment shows the pattern of clear speech over the course of the day, hour by hour.
The report is interactive! Click any daily bar to see and print hourly details for that day.
How to access the Room Detail Report
The Room Detail Report is included in the reports area of Coaching Session Prep for each session where it is used.
It's also available at any time by clicking the vertical bar graph icon on the room dashboard or on a center's detail dashboard.
Room Detail Report FAQs
In a word (or three): partial hour recordings
Children arrive and leave at different times, and they don't often start recording right at the top of the hour. This means each child's recording creates at least one partial hour of data - two if they leave before 5 PM. Partial hour recordings complicate the effort to make a "classroom clock hour" that is not skewed. To best represent the classroom, we apply partial hour rules:
- When a child contributes fewer than 30 minutes of recording to a given clock hour, that child's data are ignored for the hour. The duration is too short to include.
- If all children record for fewer than 30 minutes of an hour, we don’t create an hourly bar at all. The data are insufficient for a meaningful hour calculation.
- When a child contributes less than an hour but more than 30 minutes of recording in a clock hour, the data are pro-rated to reflect the rate of words or turns. That pro-rated count is used in the hour's calculations. For example:
- A recording with 5 turns in 30 minutes has an hourly rate of 10 turns per hour. This child contributes 10 turns toward the "sum of all turns for the hour" on hourly breakout calculations.
- A recording with 600 adult words in 40 minutes has an hourly rate of 900 adult words per hour. This child contributes 900 adult toward the "sum of all words for the hour" on hourly breakout calculations.
In contrast, we can use all the data to accurately represent the day. This means the daily average can be a little higher or a little lower than the average of the hourly bars, depending on the relative rate of words and turns in the “extra” data from partial hours.