C08 Evaluate the Validity and Reliability Part 3

Question 1

A researcher avoids collecting data on more than two students at a time due to influence of

Answer 1

Complexity

Question 2

Accurate data

Answer 2

All the above:
May be recorded by one observer even if interobserver agreement is low.
Reflect or closely approximate the true values of the observed event.
Can only be obtained using a reliable measurement system.

Question 3

Accurate data

Answer 3

Reflect or closely approximate true values.

Question 4

The practitioner compared one observer’s measures of spelling during an observation session to a different observer’s measures of the same session and there was perfect agreement. This demonstrates

Answer 4

IOA

Question 5

Data are more believable when

Answer 5

They are obtained by reliable measures.
They are accurate.
IOA is high.

Question 6

The extent to which others are convinced that measures are accurate is called

Answer 6

Believability

Question 7

A practitioner 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

Answer 7

Accuracy of the data

Question 8

IOA of two observers improves over time because they have come to an unspoken agreement of what topographies get scored, which differs from the operational definition. This influence is called

Answer 8

Observer drift

Question 9

IOA can be influenced by

Answer 9

Reactivity
Expectancy
Complexity of the data collection system.
Subtle changes in the definition of the target behavior.
Staff complaints about the person being observed.
Observers modifying operational definitions over time.

Question 10

“We always get the same frequency when we both observe, indicating high

Answer 10

IOA”

Question 11

When repeated measures consistently yield the same result for the same event, we say the measure demonstrates

Answer 11

Reliability

Question 12

A 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 a procedure for assessing

Answer 12

Reliability of the data collection procedure

Question 13

Everyone was convinced that the measures of SIB were accurate because there was 100% IOA. These data are

Answer 13

Believable

Question 14

A researcher avoids having a particular therapist who had bad experiences with a student collect data to avoid the influence of

Answer 14

Expectancy

Question 15

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

Answer 15

Accuracy

Question 16

A researcher tries to collect data from a vantage point where the students will not know he’s there due to the influence of

Answer 16

Reactivity

Question 17

The only way to know if data are accurate is to

Answer 17

Compare them to true values

Question 18

While collecting data, an observer was dozing and missed recording several behaviors. He worried that his data would not be

Answer 18

Accurate

Question 19

“His first test score was good. However, when retested, he got a lower score, thus calling into question the test’s

Answer 19

Reliability”