In the absence of any additional information, which of the following conclusions may be drawn with certainty from a positive correlation between intelligence test scores and brain volume?
a) A larger brain produces higher intelligence.
b) Higher intelligence results in a bigger brain.
c) Factors like better nutrition yield both a larger brain and higher intelligence test scores.
d) Intelligence test scores and brain volume are related but exactly what that means is unclear.
ANS: D, By itself, a correlation coefficient does not support a specific causal conclusion.
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a. one b. two c. three d. four
"Just because something has been influenced by natural selection and has evolved says nothing about its social or moral acceptability" is a
a. personal fable. c. naturalistic truth. b. biological theory. d. naturalistic fallacy.
Many boys experience their first erections
A) at birth. B) in the womb. C) at about four years old. D) between the ages of six and eight.
Convenience sampling requires selecting subgroups of participants that resemble demographics in the population.
Answer the following statement true (T) or false (F)