Taking a Broader Perspective: The Problem of External Validity Moira studies helpfulness during holidays and other times of the year to control the effects of seasonal factors.This procedure represents
A)aggregation over measures.
B)aggregation over occasions.
C)aggregation over stimuli.
D)aggregation over subjects.

Question

Quizplus · Accepted Answer

Aggregation over occasions refers to taking into account multiple instances or occasions over time when making conclusions about a phenomenon. By studying helpfulness during holidays and other times of the year, Moira is taking a broader perspective and controlling for the effects of seasonal factors, which improves the external validity of her findings beyond just the specific time or occasion being studied. Aggregation over measures refers to combining different measures within a study, aggregation over stimuli refers to combining different stimuli or situations within a study, and aggregation over subjects refers to combining data from different participants within a study.

Taking a Broader Perspective: the Problem of External Validity Moira