Use the Appropriate Formula to Find the Indicated Figurate Number $\mathrm { O } _ { 15 } = 225$

question 2

Multiple Choice

Use the appropriate formula to find the indicated figurate number.
-the 15th octagonal number

• A) \(\mathrm { O } _ { 15 } = 225\)
• B) \(\mathrm { O } _ { 15 } = 82.5\)
• C) \(\mathrm { O } _ { 15 } = 645\)
• D) \(\mathrm { O } _ { 15 } = 187.5\)

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Definitions:

Validity

The degree to which a test or instrument accurately measures what it is supposed to measure.

Structured Interviews

An interview technique where all candidates are asked the same predetermined questions with the aim of ensuring fairness and consistency in the hiring process.

TAT

A projective psychological test used to reveal a person's social drives or needs by their interpretation of a series of pictures of emotionally ambiguous situations.

Libido

A term primarily used in psychoanalytic theory to denote sexual drive or desire.