BAPSY Methodical & Stats Analysis 4

Question 1

Which of the following is a non-parametric alternative to the independent-samples t-test?

Accepted Answer

Mann-Whitney U test

Answer

The Mann-Whitney U test is the non-parametric equivalent of the independent-samples t-test, comparing two unrelated groups using ranks.

Question 2

Regression toward the mean is most likely to threaten internal validity in which design?

Accepted Answer

Pre-test/post-test designs without a control group

Answer

When participants are selected based on extreme scores, scores naturally move toward the mean on retest, threatening internal validity in pre/post designs without controls.

Question 3

Which validity type is threatened when a measure does not adequately sample all facets of a construct?

Accepted Answer

Content validity

Answer

Content validity concerns whether a measure comprehensively covers the full domain of the construct being assessed.

Question 4

In meta-analysis, publication bias refers to:

Accepted Answer

The tendency for significant results to be published more than null results

Answer

Publication bias occurs because journals disproportionately accept significant findings, inflating meta-analytic effect size estimates.

Question 5

A researcher uses stratified random sampling. The primary advantage over simple random sampling is:

Accepted Answer

It guarantees representation of key subgroups

Answer

Stratified sampling divides the population into subgroups and samples from each, ensuring proportional representation of important strata.

BAPSY - Bachelor of Arts in Psychology Practice Test

BAPSY - Bachelor of Arts in Psychology Practice Test

BAPSY Methodical & Stats Analysis 4