Taking a Broader Perspective: The Problem of External Validity Karen performed a large N experiment and based her conclusions on group averages.Which aggregation technique did she use?
A)aggregation over measures
B)aggregation over stimuli
C)aggregation over subjects
D)aggregation over trials

Question

Quizplus · Accepted Answer

Aggregation over subjects refers to calculating group averages based on individual participants' responses. This is the most likely aggregation technique used in Karen's experiment, as she based her conclusions on group averages. Aggregation over measures refers to combining data from multiple measures of the same construct, aggregation over stimuli refers to combining data from multiple presentations of the same stimulus, and aggregation over trials refers to combining data from multiple trials of the same task. While it's possible that Karen used one or more of these aggregation techniques in her experiment, none of them are explicitly mentioned in the question stem.

Taking a Broader Perspective: the Problem of External Validity Karen