repeated measures designs
research designs in which each subject participates in all conditions of the experiment (i.e., measurement is repeated on the same subject).
refers to the likelihood in an experiment that the effect of an independent variable will be detected when that variable does, indeed, have an effect; sensitivity is increased to the extent that error variation is reduced (e.g., by holding variables constant rather than balancing them).
changes that participants undergo with repeated testing. Practice effects are the summation of both position (familiarity with the task) and negative (boredom) factors associated with repeated measurement.
a control technique for distributing (balancing) practice effects across the conditions of a repeated measures deign. How counterbalancing is accomplished depends on whether a complete or an incomplete repeated measures design is used.
Balancing the order of conditions in a repeated measures design _______
averages practice effects across the conditions of the experiment
In the incomplete repeated measures design, the levels of the independent variable for each participant are perfectly confounded with the _______
order in which the levels were presented
Practice effects in the incomplete repeated measures design are balanced by _______
combining the results for all participants
Repeated measures designs are more sensitive than random groups designs because the systematic variation due to individual differences is _________ the statistical analyses.
The additional step needed when analyzing the results in a complete repeated design is to _______
compute the mean score for each participant for each condition of the experiment
The problem of _____ occurs when the effects of the manipulation for a condition persist or carryover into the subsequent conditions in a repeated measures design.
There can be no confounding by individual differences variables in the repeated measures designs because _______
the same participants are tested in all conditions of repeated measures designs
When a participant in an experiment that involves the complete repeated measures design develops expectations about which condition should occur next in the sequence, the methodological problem that occurs is called ______
Which concern lead researchers to balance practice effects in repeated measures designs?
Balancing allows researchers to control changes participants undergo with repeated testing in repeated measures designs
What are three of the reasons why researchers choose to use the repeated measures design?
they require fewer subjects, they are more convenient and efficient, they are needed when the experimental procedures require participants to compare two or more stimuli