When Would It Be Appropriate to Use the Planned Comparisons

question 11

Multiple Choice

When would it be appropriate to use the planned comparisons instead of the post hoc tests to identify differences in the time-trial groups?

• A) When specific hypotheses have been generated before the experiment.
• B) Comparisons should always be run with post hoc tests.
• C) Comparisons should be run in place of post hoc tests when no hypothesis has been planned prior to the experiment.
• D) Neither post hoc tests or comparisons are really necessary, as they only provide supplementary information.

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Definitions:

Dispersed

Spread over a wide area or among a large number of people.

Mean

The arithmetic average of a set of numbers, calculated by adding them together and dividing by the number of values.

Average Score

The sum of all individual scores divided by the number of scores, often used as a measure of central tendency.

Median

The middle value in a list of numbers sorted in ascending or descending order, or the mean of the two middle numbers if the list has an even number of values.