What is the effect size in research studies?
a) the difference between two groups in a meta-analysis
b) the typical distribution of characteristics of a population
c) a statistical technique
d) a hypothesis about psychological and behavioral differences between females and males
Answer: a
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Which of the following statements is true?
A. Most behavioral disorders are determined exclusively by genes. B. Most mental disorders are impacted by some level of genetic influence. C. Genes do not affect biochemical processes. D. The genes that will be expressed in an individual are not affected by environmental factors.
What is the typicalamount of time it takes for the average person who is HIV?positive and not receiving any type of treatment to develop AIDS?
a. 1?2 years b. 2?4 years c. 5?7 years d. 8?10 years
In random assignment, the group that receives no treatment is called the ________ group
a. dependent variable c. causal b. experimental d. control
If a fetus has the sex chromosomes XX, its genotype is ____
a. female b. male c. undetermined d. dimorphic