Which of the Following Would Most Accurately Determine Causality

question 15

Multiple Choice

Which of the following would most accurately determine causality?

• A) An experiment in which researchers manipulate the dependent variable
• B) An experiment in which researchers manipulate multiple independent variables
• C) An experiment in which researchers study the variables in chronological order
• D) An experiment in which researchers produce results that cannot be duplicated

---

Definitions:

Pooled Variance T-test

A statistical test that combines the variances of two samples to test the hypothesis that the means of two populations are equal under the assumption of equal variances.

Degrees Of Freedom

The number of independent pieces of information in a dataset available for estimating parameters or calculating a statistic, usually defined as the number of observations minus the number of parameters being estimated.

Independent Populations

Populations that have no interaction with each other, implying that the sample from one population is not influenced by the other.

Equal Variances

A condition in statistical analysis where the variances across different groups are assumed to be the same.