C03 Measure Occurrence- Frequency & Rate Part 1 Flashcards
During a 1 minute observation, the first instance of SIB occurred 2 seconds after the staff request. The second instance occurred 3 seconds after a request and the third instance occurred 1 second after the request. Each instance of SIB lasted 5 seconds. What was the frequency of SIB?
3 instances
During a 1 minute observation, the first instance of SIB occurred 2 seconds after the staff request. The second instance occurred 4 seconds after a request and the third instance occurred 3 second after the request, and the fourth instance occurred 1 second after the request. Each instance of SIB lasted 1 second. What was the frequency of SIB?
4 instances
Frequency measures are most appropriate when
The rate makes it possible to count each response
During a 1 minute observation, the first instance of SIB occurred 2 seconds after the staff request. There were no additional instances after a second, third, and fourth staff request. Each instance of SIB lasted 5 second. What was the rate of SIB?
1 per minute
“The student read 30 words during reading yesterday and 35 words during reading today”, is a measure of
Frequency
Daily playtime ranges from 30 to 60 minutes. A suitable measure for appropriate interactions might be
Rate
During a 2 minute observation, the first instance of SIB occurred 2 seconds after the staff request. The second instance occurrence 4 seconds after a request. Each instance of SIB last 1 second. What was the frequency of SIB?
2 instances
During a 10 minute observation, the first instance of SIB occurred 2 seconds after the staff request. There were no additional instances after a second, third, and fourth staff request. The instance of SIB lasted 5 seconds. What was the rate of SIB?
.1 per minute
During a 10 minute observation, the first instance of SIB occurred 2 seconds after the staff request and the second instance occurred 3 seconds after a second staff request. There were no additional instances after a third and fourth staff request. Each instance of SIB lasted 5 seconds. What was the rate of SIB?
.2 per minute
Rate measures
Should not be used with discrete trial data, because discrete trial behaviors are controlled by a given opportunity to respond.
Frequency measures are most appropriate when
All the above:
The rate makes it possible to count each response.
Responses do not vary significantly in duration.
Responses have a discrete beginning and end.
Rate should be used for measures of
Proficiency
Frequency measures are most appropriate when
Responses have a discrete beginning and end
“The student reads 30 words a minute”, is a measure of
Rate
Frequency measures are most appropriate when
The rate makes it possible to count each response
During a 2 minute observation, the first instance of SIB occurred 2 seconds after the staff request. The second instance occurred 3 seconds after a request, the third instance occurred 1 second after the request, and the fourth instance occurred 2 seconds after the staff request. Each instance of SIB lasted 5 seconds. What was the rate of SIB?
2 per minute
During a 1 minute observation, the first instance of SIB occurred 2 seconds after the staff request. The second instance occurred 3 seconds after a request, the third instance occurred 1 second after the request, and the fourth instance occurred 2 seconds after the staff request. Each instance of SIB lasted 5 seconds. What was the rate of SIB?
4 per minute
Use frequency only when
Observation length and opportunities to respond remain constant
Sometimes rate and frequency are differentiated. Rate always refers to the
Number of occurrences divided by time.
