With interval data and random assignment of subjects, the appropriate analysis of data from an between subjects (two group) design would be
A) the paired t
B) the Pearson r
C) the independent t
D) the Spearman correlation

Question

Quizplus · Accepted Answer

With interval data, the appropriate analysis for a between subjects design is the independent t-test. This test compares the means of two independent groups to determine if there is a significant difference between them. Random assignment of subjects ensures that the groups are comparable and reduces the likelihood of confounding variables affecting the results. The paired t-test is used for within-subjects designs, where the same subjects are measured before and after an intervention. The Pearson r is a correlation coefficient for assessing the strength of a linear relationship between two continuous variables. The Spearman correlation is a non-parametric measure of association for ranked or ordinal data.

With Interval Data and Random Assignment of Subjects, the Appropriate