Roediger and Karpicke (2006) investigated whether the test-enhanced learning effect (the demonstration that repeated testing improves memory for material) was due merely to repeated exposure to material.They randomly assigned participants to one of two study conditions (study-study or study-test) and to one of three retention interval conditions (final test at a delay of 5 minutes, 2 days, or 1 week).The dependent variable was the proportion of idea units recalled from an encyclopedia passage.What is(are) the main effect(s) being tested in the study?
A) study condition
B) retention interval condition and idea units recalled
C) study condition and idea units recalled
D) study condition and retention interval condition

Question

Quizplus · Accepted Answer

The main effects being tested are study condition (i.e., study-study or study-test) and retention interval condition (i.e., final test at a delay of 5 minutes, 2 days, or 1 week) on the proportion of idea units recalled from an encyclopedia passage.

Roediger and Karpicke (2006) Investigated Whether the Test-Enhanced Learning Effect