A Random Sample of 20 Items Is Selected from a Population

question 62

Multiple Choice

A random sample of 20 items is selected from a population. To determine the appropriate critical t-value what number of degrees of freedom should be used?

• A) 20
• B) 19
• C) 21
• D) 25

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Definitions:

Multifinality

The principle in developmental psychology that similar early experiences can lead to different outcomes in individuals.

Equifinality

A principle from systems theory suggesting that different actions in a given context can lead to the same outcome.

Dyslexia

Unusual difficulty with reading; thought to be the result of some neurological underdevelopment.

Dyscalculia

Unusual difficulty with math, probably originating from a distinct part of the brain.