A researcher collects data from 90 people and calculates a Pearson correlation of r = .23. Assuming ? = .05 (two-tailed), the researcher would make the decision to ______.
a. reject the null hypothesis (p < .05)
b. reject the null hypothesis (p < .01)
c. not reject the null hypothesis (p > .05)
d. not reject the null hypothesis (p < .05)
a. reject the null hypothesis (p < .05)
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One of the fundamental characteristics of children with autism is a lack of theory of mind, which refers to the ability of human beings to
a. communicate their thoughts clearly. b. understand the thinking and feelings of other people. c. begin to learn basic preacademic skills. d. understand the basic concepts of math.
All of the following foods are common allergens EXCEPT:
a. eggs b. orange juice c. rice d. whole wheat bread
According to authorities, the use of medication to treat individuals with attention deficit hyperactivity disorder
a. improves musical ability. b. is helpful in only a small number of cases. c. can make children drug addicts. d. makes people smarter. e. may help improve concentration.
The primary advantage of telephone interviews over face-to-face interviews is:
a. ease of scheduling. b. less threatening to the respondent. c. simplified data tabulation. d. lower costs.