Which of the following is a reason why we may NOT find a significant difference between two groups?
a. The sample size was too small.
b. The true mean difference between the groups was too small.
c. The variability between the groups was too large.
d. all of the above
D
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Due in large part to the theorizing of John Dewey, school systems in the early part of the twentieth century in the United States placed less emphasis on
a. rote learning. b. learning by doing. c. intellectual curiosity. d. "progressive education."
The gene for Huntington's disease is located on chromosome 4
Indicate whether the statement is true or false
Which statement about media use and ethnicity is correct?
A. There are no differences in media use among toddlers of different ethnicities. B. African American and Latino toddlers watch more TV than White toddlers do. C. African American and White toddlers watch more TV than Latino toddlers do. D. White toddlers watch more TV than African American and Latino toddlers do.
The most commonly reported to the least commonly reported disorders in the United States are
a) anxiety disorders, alcohol or drug use/dependence, depressive disorders b) alcohol or drug use/dependence, depressive disorders, anxiety disorders c) depressive disorders, depressive disorders, alcohol or drug use/dependence d) anxiety disorders, depressive disorders, alcohol or drug use/dependence