General findings are that there is a moderate positive
correlation—about .3 to .4—between brain size and measured intelligence. We must remember, however, that this relationship does not mean that having a bigger brain is directly responsible for higher intelligence. Some third variable, such as better nutrition, might explain this relationship. This reminds us of the critical thinking concept of
A) correlation versus causation.
B) replicability.
C) Occam's Razor.
D) extraordinary claims.
Answer: A
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Individuals with mild mental retardation, in the _____ range, can usually acquire academic skills to about the _____ grade level
a) 50 to 60; third b) 55 to 70; sixth c) 60 to 80; eighth d) 40 to 60; first
Which of the following is NOT a characteristic of groupthink?
a) Preserving group solidarity is more important than objectivity. b) One group member makes it a point to challenge the group. c) Individual members hesitate to voice any opposing ideas. d) The group believes it is incapable of making mistakes.