A teacher gives a direction, then measures how long it takes the student to begin the specified behavior. Which measure is the teacher recording?
2 Duration and Latency Measurement Online Quiz Questions
Use this free practice quiz with 20 questions to review 2 Duration and Latency Measurement, test your knowledge, and prepare for your next test or exam.
If the specified behavior does not occur during an observation, its duration for that observation should be recorded as zero.
- A
True
- B
False
In one example definition of work, work ends when the student stops task-related activity for 10 consecutive .
Latencies after four directions are 8, 12, 5, and 15 seconds. What is the mean latency? Enter the value in seconds.
A direction takes several seconds to deliver. Under the stated practical timing rule for latency, when should timing start and stop?
- A
Start when the teacher begins speaking and stop when the direction is repeated.
- B
Start at the end of the direction and stop at the first observable action that meets the behavior definition.
- C
Start when the student enters the room and stop when any movement occurs.
- D
Start when the student begins the behavior and stop when the direction ends.
Which practices support consistent duration recording? Select all that apply.
- A
Define observable start and end points before recording.
- B
Apply the same behavior definition and timing rule each time.
- C
Change the timing rule from episode to episode to capture more detail.
- D
Record each episode using a consistent unit.
- E
Record separate episodes and add their times to find total duration.
A student begins the defined behavior 6, 11, and 7 seconds after three directions. What is the range of these latencies? Enter the value in seconds.
To calculate the range, subtract the from the largest value.
A student does not begin the specified behavior before a 30-second observation ends. How should this outcome be recorded?
- A
Record the full observation length as the exact latency.
- B
Record a latency of zero because no behavior occurred.
- C
Record that no response occurred within the available time.
- D
Estimate the latency based on the student's previous responses.
The range of a set of measurements shows how the values are distributed between the minimum and maximum.
- A
True
- B
False
When comparing duration results across observations, which features should be comparable? Select all that apply.
- A
Use observations of the same length.
- B
Compare results even if the behavior definitions differ.
- C
Use the same behavior definition.
- D
Require that observations take place at the same clock time.
- E
Use comparable timing rules.
A behavior occurs from 9:02:10 to 9:03:25, then from 9:05:00 to 9:06:10. Find each episode's duration, the total duration, the mean duration per episode, and the range. Include units and explain what the mean represents.
A behavior occupies 145 seconds of a 10-minute observation. What percentage of the observation did it occupy, rounded to the nearest tenth of a percentage point? Use 600145×100 to calculate the percentage.
- A
2.4%
- B
14.5%
- C
24.2%
- D
41.4%
A teacher gives a direction, and an observer measures the time from the end of the direction until the student begins the specified behavior. Which measure is the observer recording?
- A
Duration, because it measures how long the behavior continues.
- B
Latency, because it measures how long it takes the behavior to begin after the direction.
- C
Range, because it measures the time between the direction and the behavior.
- D
Mean duration, because it measures the average time before the behavior begins.
A direction is given, but the specified behavior does not begin before the observation ends 30 seconds later. The observer should record the latency as exactly 30 seconds.
- A
True
- B
False
An observer measures the duration of a behavior during an observation, but the behavior never occurs. What should the observer record for duration?
- A
Record the observation as missing data.
- B
Record the full observation length as the behavior's duration.
- C
Record zero duration.
- D
Record no response within the available time.
An observer defines work as beginning at the first task-related action and ending after 10 consecutive seconds without task-related activity. A student begins work at 9:02:30, pauses from 9:03:00 to 9:03:08, resumes, and then stops working at 9:04:10 without resuming. At what time should the observer stop the duration timer?
- A
9:03:00, when the pause begins.
- B
9:03:08, when the student resumes the task.
- C
9:04:10, when the student stops the task for the final time.
- D
9:04:20, after 10 consecutive seconds without task-related activity.
A behavior occurs from 10:00:05 to 10:00:32 and again from 10:04:10 to 10:04:49. What is the total duration across the two episodes, in seconds?
An observer wants to compare duration results from two observations. The behavior definitions and timing rules differ, and the observations are different lengths. What should the observer do before interpreting the comparison?
- A
Compare the totals as they are; observation length does not affect interpretation.
- B
Ensure the observation lengths, behavior definitions, and timing rules are comparable.
- C
Compare only the largest episode from each observation.
- D
Convert both totals to mean latency.
During an 8-minute observation, a behavior lasts 36 seconds in one episode and 60 seconds in another. What percentage of the observation did the behavior occupy? Give your answer to the nearest whole percentage point.