BAPSY Methodical & Stats Analysis 3

Question 1

In multiple regression, multicollinearity refers to:

Accepted Answer

High correlation among predictor variables

Answer

Multicollinearity occurs when predictor variables are highly correlated with each other, making it difficult to isolate individual effects.

Question 2

A within-subjects (repeated measures) design reduces error variance primarily by:

Accepted Answer

Controlling for individual differences across conditions

Answer

Repeated measures designs use the same participants across conditions, removing between-person variability from the error term.

Question 3

Cronbach's alpha is used to assess:

Accepted Answer

Internal consistency of a scale

Answer

Cronbach's alpha estimates the internal consistency of a multi-item scale by examining inter-item correlations.

Question 4

The p-value in hypothesis testing represents:

Accepted Answer

The probability of obtaining results at least as extreme as observed, given H₀ is true

Answer

The p-value is the probability of observing data as extreme or more extreme than the sample, assuming the null hypothesis is true.

Question 5

Which of the following is an example of a confounding variable?

Accepted Answer

A variable that co-varies with IV and affects DV unintentionally

Answer

A confound is an extraneous variable that varies systematically with the independent variable and influences the dependent variable.

BAPSY - Bachelor of Arts in Psychology Practice Test