In a Study of IQ Scores, If the Mean Score

question 5

Multiple Choice

In a study of IQ scores, if the mean score and standard deviation for the control group are 100 and 15, respectively, and the researcher has decided not to do an experiment unless an effect size of at least 1.00 can be achieved, what minimum IQ score would the treatment group need to reach?

• A) 85
• B) 100
• C) 115
• D) Depends on alpha level

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Ethanol fuel sourced from foreign countries, used primarily as a biofuel additive for gasoline.

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