Exam 2: Drawing Valid Inferences I: Internal and External Validity

What is a typical approach used by researchers to control for the possible influences of history and maturation a longitudinal experiment?

What is typically done to reduce the possibility of selection biases?

Generalizing research findings from animals to human beings is considered to be a potential threat to:

Reactivity may pose a threat to the external validity of an experiment because:

Why is it important to use a number of different stimulus items in an experiment?

The primary problem with using a pretest in an experiment is:

An example of the instrumentation threat to internal validity is:

Internal validity is best defined as:

Failing to generalize results to other populations or settings:

Which of the following is NOT a threat to the internal validity of an experiment?

External validity is mostly concerned with:

Statistical regression, as a threat to internal validity, refers to:

Reducing possible threats to internal validity will most likely lead to:

What is the best way to reduce threats to internal and external validity?

The timing of measurement e.g., pretest, posttest, after treatment) is an important consideration in experimental design because: