CSP Quantitative Research & Statistics 2

Question 1

A researcher finds a Pearson r of 0.85 between hours studied and exam scores. What does this indicate?

Accepted Answer

A strong positive linear relationship

Answer

A Pearson r of 0.85 indicates a strong positive linear relationship, meaning as hours studied increase, exam scores tend to increase substantially.

Question 2

Which measure of central tendency is most appropriate when data contains extreme outliers?

Accepted Answer

Median

Answer

The median is most appropriate with outliers because it is not affected by extreme values, unlike the mean which gets pulled toward outliers.

Question 3

In a multiple regression analysis, what does the R-squared value represent?

Accepted Answer

The proportion of variance in the dependent variable explained by predictors

Answer

R-squared (coefficient of determination) represents the proportion of variance in the dependent variable that is explained by the independent variables in the model.

Question 4

A sociologist uses a Likert scale ranging from 1 (strongly disagree) to 5 (strongly agree). This scale produces which level of measurement?

Accepted Answer

Ordinal

Answer

Likert scales produce ordinal data because responses have a meaningful rank order, but the intervals between response categories are not necessarily equal.

Question 5

What is the primary purpose of conducting a factor analysis in sociological research?

Accepted Answer

To identify underlying dimensions among a set of observed variables

Answer

Factor analysis identifies latent constructs or underlying dimensions that explain patterns of correlations among multiple observed variables.

(CSP) Certified Sociological Practitioner Practice Test

(CSP) Certified Sociological Practitioner Practice Test

CSP Quantitative Research & Statistics 2