The effect size for the data from an independent-measures t test can be measured by r2, which is the percentage of variance accounted for. Which of the following also produces the value for r2?
a. Squaring the Spearman correlation for the same data
b. Squaring the point-biserial correlation for the same data
c. Squaring the Pearson correlation for the same data
d. None of the other options will produce r2.
B
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Randy has an internal locus of control. This means she
a. can only control her inner emotions. b. can only control her outward appearance. c. feels she is controlled by others. d. feels she can control her own life.
Baby Huey spends a lot of his time pushing toys around his crib. A developmental psychologist would say that he's engaging in
A) exploratory play. B) symbolic play. C) adaptive play. D) categorical play.
Which of the following is true of pharmacological interventions for individuals with mental
retardation? a. Medications that are effective in controlling disruptive behaviors tend to suppress overall activity and adaptive functioning as well. b. The potential benefits of psychiatric medications for children and adolescents with mental retardation clearly outweigh the risks of their long-term use. c. Pharmacological interventions are the most effective way to improve the overall functioning of individuals with some forms of mental retardation d. Psychiatric medications have been extensively tested and have been shown to have few developmental side-effects for the treatment of young children with mental retardation. e. All of the above are true
Activation of the receptors by stimuli is called __________.
A. perception B. sensation C. adaptation D. habituation