A Researcher Gives IQ Tests to a Large Group of Adults

question 58

Multiple Choice

A researcher gives IQ tests to a large group of adults, and discovers that the
mean, median and mode all equal 100. The highest score in the group was 130
and the lowest was 70. Between IQ's of 75 and 125, 80% of the group was found, and 50% were found between IQ's of 90 and 110. The shape of the graphed distribution was mesokurtic.
-The first decile coincided with an IQ of

• A) 75
• B) 90
• C) 100
• D) 130

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Definitions:

Locus of Control

A psychological concept that refers to how strongly individuals believe they have control over the situations and experiences that affect their lives.

Internals and Externals

A concept in psychology contrasting people who attribute outcomes to their own control (internals) versus those who attribute outcomes to external sources (externals).

Personal Achievement

A feeling of pride and satisfaction that comes from achieving personal goals, regardless of the recognition received from others.

Psychotherapy

A therapeutic treatment involving psychological methods, particularly when based on regular personal interaction, to help a person change behavior and overcome problems in desired ways.