We are trying to evaluate the efficacy of a treatment for claustrophobia. We have a control group that receives no treatment and an experimental group that receives our new treatment. We ask each participant to enter a very small room and stay there are long as they can. The mean of the control group is 10 seconds, with a standard deviation of 4 seconds. The mean of the experimental group is 18
seconds with a standard deviation of 8 seconds. Our best estimate of effect size is
a. 2.0
b. 1.33
c. 1.0
d. 1.75
A
Psychology
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Descriptive research methods include naturalistic observations, case studies, and surveys
Indicate whether the statement is true or false.
Psychology
Whenever Don's mother tells him she wants to listen to him read, 8 year old Don starts to cry
that he has a headache and that his eyes are tired. Don may be suffering from a. myopia. b. nearsightedness. c. convergence insufficiency. d. spatial disorder.
Psychology