Using the Conservative Test in Which Variances Were Not Pooled

question 32

Multiple Choice

Using the conservative test in which variances were not pooled that was described in the text, on how many degrees of freedom would the t test on groups of 65 and 21 participants be based?

• A) 65 - 1 = 64 df
• B) 21 - 1 = 20 df
• C) 65 + 21 - 2 = 84 df
• D) (65 + 21) ÷ 2 = 43 df

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Definitions:

Stress

A psychological and physical response to perceived challenges or threats, leading to various emotional, cognitive, and biological reactions.

Hippocampus

A key structure in the brain involved in the formation of new memories and is closely associated with learning and emotions.

Cortisol

A steroid hormone released by the adrenal glands in response to stress and low blood-glucose concentration, involved in metabolic functions.

Memory

The faculty by which the mind stores and remembers information, allowing for the retention and recall of past experiences.