The Effect Size for an Independent Samples T-Test Is

question 63

Short Answer

The effect size for an independent samples t-test is .90. How many subjects would be necessary for the following levels of power if α = .05?
a. .50
b. .77
c. .91

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Definitions:

Cross-Tolerance

A phenomenon in which tolerance to the effects of a certain drug produces tolerance to another drug, usually because both drugs share similar mechanisms of action.

Drug Group

A classification of medications or compounds with similar chemical structures, mechanisms of action, therapeutic uses, or side effects.

Addiction

A complex brain disorder characterized by escalation, compulsive drug taking, and relapse; called substance use disorder per the DSM-5.

Schizophrenia

A mental disorder characterized by disruptions in thought processes, perceptions, emotional responsiveness, and social interactions, presenting symptoms like hallucinations and delusions.