A Researcher in the Area of IQ Wishes to Measure

question 45

Short Answer

A researcher in the area of IQ wishes to measure a sample of children using the WISC III. The standard deviation on the WISC-III is 15. How large a sample should be selected if the researcher wishes to be .99 accurate to within 5 IQ points?

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Definitions:

Activated

Made active or operational; also refers to the process of a molecule being converted into a reactive form.

Imitation

The act of copying or mimicking the behaviors, actions, or appearances of someone else.

Intellectual Development

The growth of cognitive abilities and capacities, ranging from memory and problem-solving to decision making across an individual's lifespan.

Bayley Scales

A series of standardized tests used to assess the motor, language, and cognitive development of infants and toddlers.