Exam 6: Critically Appraising Quasi-Experiments: Nonequivalent Comparison Groups Designs

Which of the following could be cited to support the comparability of groups in a nonequivalent comparison groups design?

The plausibility of a selectivity bias can be assessed by employing multivariate data analysis procedures.

Pilot studies with serious design limitations can have utility.

Explain the value of switching replications in studies using nonequivalent comparison groups designs.

Which statement is the most appropriate interpretation of the following results of a study evaluating the effectiveness of an innovative program that aims to increase victim empathy scores among prisoners?

The plausibility of a selectivity bias can be reduced by employing switching replications.

Explain the value of multiple pretests in studies using nonequivalent comparison groups designs.

The plausibility of a selectivity bias can be reduced by employing multiple pretests.

The plausibility of a selectivity bias can be reduced by employing nonequivalent dependent variables.

Random assignment is often infeasible in real-world practice settings.

Which of the following statements is/are true about propensity score matching?

A limitation of propensity score matching is that it might be difficult to ascertain when exactly an intervention was implemented, especially if the data were collected infrequently.

Pilot studies typically have high degrees of internal validity.

Which of the following statements is/are true about pilot studies?

Which is the best interpretation for the following results using switching replications in a nonequivalent comparison groups design study evaluating the effects of an innovative intervention to reduce temper tantrums?

Which is the best interpretation for the following results using multiple pretests in a nonequivalent comparison groups design study evaluating the effects of an innovative intervention to improve self esteem?

Discuss the limitations as well as the possible value of pilot studies that use designs with weak internal validity.

Construct a multivariate statistical table that illustrates an outcome that is attributable to a selectivity bias.

The key issue in judging whether a study using a nonequivalent comparison groups design achieves a credible degree of internal validity is the extent to which its authors provide a persuasive case that the groups being compared are really comparable.

Which statement is the most appropriate interpretation of the following results of a study evaluating the effectiveness of an innovative program that aims to prevent recidivism among released prisoners?