Accurracy/Reliability and Reactivity/Expectancy Flashcards
know the difference between accuracy, reliability and validity as well as reactivity, expectancy, observer drift and complexity
“His first test score was good. However, when retested, he got a lower score, thus calling into question the test’s…
A. reliability”
B. accurracy”
C. validity”
A
ACCURACY: the extent to which a measure reflects or closely approximates the true value
RELIABILITY: repeated measurement of the same event yields the same result
VALIDITY: a measure measures what it purports to measure
A reasearcher tries to collect data from a vantage point where the students will not know he’s there due to the influence of…
A. reactivity
B. observer drift
C. expectancy
A
A reasearcher avoids having a particular therapist who had bad experiences with a student collect daa to avoid the influence of…
A. expectancy
B. reactivity
C. observer drift
A
REACTIVITY: the presence of an observer influences behavior
OBSERVER DRIFT: over time observers modify operational definitions
EXPECTANCY: bias due to preconceived notions and information given
The practitioner compared one observer’s measures of spelling during an observation session to a different observer’s measures ofthe same session and there was a perfect agreement. This demonstrates…
A. IOA
B. believability
C. reliability
A
The practitioner compared one observer’s measures of SIB during an observation session to a different observer’s measures of the same session. This is aprocedure for assessing…
A. IOA
B. believability of the data
C. reliability of the data collection procedure
A
When repeated measures consistently yield the same result for the same event, we say the measure demonstrate…
A. accuracy
B. reliability
C. validity
B
ACCURACY: the extent to which a measure reflects or closely approximates the true value
RELIABILITY: repeated measurement of the same event yields the same result
VALIDITY: a measure measures what it purports to measure
Using one-hour partial interval recording to measure high rate out-of-seat behavior is likely to result in a problem with the data’s…
A. accuracy
B. validity
C. reliability
A
IOA can be influenced by…
A. interactivity
B. expectancy
C. all of the above
B
Accurate data…
A. are valid
B. reflect or closely approximate true values
C. all of the above
B
Data are more believable when…
A. they are obtained by reliable measures
B. IOA is high
C. all of the above
C
A practictioner compared a newly trained observer’s measures of math fact performance to a report generated by a math facts computer program. This is a procedure for assessing…
A. accuracy of data
C. validity of data
C. reliability of data
A
ACCURACY: the extent to which a measure reflects or closely approximates the true value
RELIABILITY: repeated measurement of the same event yields the same result
VALIDITY: a measure measures what it purports to measure
“The test scores are always good. However, due to the possibility of someone else taking the test and putting their name on it, we question the test’s…
A. validity”
B. accuracy”
C. reliability”
A
ACCURACY: the extent to which a measure reflects or closely approximates the true value
RELIABILITY: repeated measurement of the same event yields the same result
VALIDITY: a measure measures what it purports to measure
The only way to know if data are accurate is to…
A. compare the results to other observers
B. make sure they are directly relevant to the phenomena measured
C. compare them to true values
C
The practitioner compared one observer’s measure of SIB during a video taped observation session to that same observer’s earlier measure of the same video taped session. This is aprocedure for assessing…
A. IOA
B. accuracy of the data
C. reliability of the data collection procedure
C
Data are more believable when…
A. they are collaboratively collected by multiple observers
B. they are obtained by reliable measures
C. all of the above
B
