If a Researcher Suspects That the Strength of the Relationship

question 105

Multiple Choice

If a researcher suspects that the strength of the relationship in the population is .25 for the main effect of factor A,.03 for factor B,and .15 for the interaction effect as indexed by eta-squared,what sample size should she use per cell in a study involving four levels of factor A,two levels of factor B,and an alpha level of .05 in order to achieve a power of at least .95 for each effect?

• A)7
• B)12
• C)25
• D)53
• E)211

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Definitions:

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Mirror Neuron Activity

Neural activity observed in certain brain regions that activate both when an individual performs an action and when they observe the same action performed by another.

Conscious Reflection

Deliberate thought or meditation on one's own actions, feelings, or thoughts.

Yawn

A reflex consisting of the simultaneous inhalation of air and the stretching of the eardrums, often triggered by tiredness, stress, or boredom.