Exam 9: Internal Validity

Internal validity often receives little attention in research proposals, perhaps because:

Controlling threats to the internal validity of a study is best done once the data have been collected.

Which of the following is not an example of a possible location threat?

Which of the following might be a possible testing threat to the internal validity of a study?

A threat to internal validity is the same as:

In which of the following is a history threat least likely to occur?

In an experimental study, a subject characteristics threat may be present if:

Matching -Subject characteristics threats

Matching -Instrumentation threat

Referring to the study in item 2 again, for what additional reason might the conclusion be unjustified?

Loss of subjects is a serious threat to internal validity in an experimental study if:

Which is the least-effective means of controlling data collector bias?

With which of the following findings would a maturation threat be of most concern?

Instrument decay refers to the possibility that:

Loss of subjects in a study can best be handled by:

Data collector characteristics may be a threat to internal validity if: