What does ΣD represent in the formula that computes a t value?

A) sum of the differences between groups of scores
B) sum of the means for Group 1
C) sum of the means for Group 2
D) sum of the squared differences

ΣD

Symbolizes the sum of differences, often used in statistical formulas to denote the aggregate of specific differences.

Differences Between Groups

A concept in research that refers to the observable or measurable disparity in outcomes across separate groups.

Sum of Differences

The total sum calculated by subtracting each value in a dataset from a specific value (often the mean), used in various statistical computations.