When Performing a Rank Correlation Test, One Alternative to Using $$r _ { S } = \pm \sqrt { \frac { t ^ { 2 } } { t ^ { 2 } + n - 2 } }$$

question 39

Multiple Choice

When performing a rank correlation test, one alternative to using Table A-9 to find critical values is to compute them using this approximation: $$r _ { S } = \pm \sqrt { \frac { t ^ { 2 } } { t ^ { 2 } + n - 2 } }$$
where $t$ is the t-score from Table A-3 corresponding to $\mathrm { n } - 2$ degrees of freedom. Use this approximation to find critical values of $\mathrm { r } _ { \mathrm { S } }$ for the case where $\mathrm { n } = 7$ and $\alpha = 0.05$ .

• A) \(\pm 0.569\)
• B) \(\pm 0.755\)
• C) \(\pm 0.448\)
• D) \(\pm 0.669\)

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Definitions:

Classical Conditioning

An educational method that develops through the connection between a stimulus in the environment and a stimulus that naturally occurs, resulting in a conditioned response.

Potty-Trained

The process by which a young child learns to use the toilet for urination and defecation voluntarily.

Fear Dentist

Anxiety or fear associated with visiting the dentist, often resulting in avoidance of dental care.

UCS

An acronym for Unconditioned Stimulus, which in classical conditioning theory is an event that naturally and automatically triggers a specific response without previous conditioning.