The measure of the effect size for the difference between two groups is best seen as
a. the difference in their means.
b. .
c. the ratio of the means.
d. all of the above
D
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People who are homozygous for the A allele of the FTO gene are ______ more likely to be obese than individuals without the A allele.
A. 5% B. 15% C. 70% D. 90%
In the experiments on juvenile delinquents who were incarcerated in minimum
security prisons in different countries, who had the highest mean aggression scores? (a) initially high aggressive boys who saw a violent movie (b) initially high aggressive boys who saw a non-violent movie (c) initially low aggressive boys who saw a violent movie (d) initially low aggressive boys who saw a non-violent movie (e) they were all about equal
High-achieving students typically have parents who
A) are very involved in elementary school but are less involved in middle and high school. B) keep tabs on their child's progress. C) are somewhat involved in elementary school but are very involved in middle and high school. D) rely on them to communicate with teachers.
Which of the following is true about cones?
a) They are responsible for black and white vision. b) They are found mainly in the center of the eye. c) They operate mainly at night. d) They respond only to black and white.