BAPSY FREE Bachelor of Arts in Psychology: Methodical & Stats Analysis Questions and Answers 2

Question 1

A researcher finds a correlation of r = 0.85 between study hours and exam scores. What percentage of variance in exam scores is explained by study hours?

Accepted Answer

72.25%

Answer

85%

Answer

42.5%

Answer

50%

Question 2

Which measure of central tendency is most appropriate for highly skewed income data?

Accepted Answer

Median

Answer

Mean

Answer

Mode

Answer

Standard deviation

Question 3

In a 2x3 factorial ANOVA, how many interaction effects can be tested?

Accepted Answer

1

Answer

2

Answer

3

Answer

6

Question 4

A psychologist wants to determine if therapy type predicts group membership (improved vs. not improved). Which test is most appropriate?

Accepted Answer

Chi-square test of independence

Answer

Independent samples t-test

Answer

Pearson correlation

Answer

One-way ANOVA

Question 5

What does a p-value of 0.03 indicate in hypothesis testing at α = 0.05?

Accepted Answer

Reject the null hypothesis

Answer

Fail to reject the null hypothesis

Answer

Accept the alternative hypothesis with certainty

Answer

The effect size is large

Question 6

Which sampling method involves dividing the population into subgroups and randomly selecting from each subgroup?

Accepted Answer

Stratified random sampling

Answer

Cluster sampling

Answer

Convenience sampling

Answer

Systematic sampling