What is indicated by a large variance for a sample of difference scores?
a. A consistent treatment effect and a high likelihood of a significant difference
b. A consistent treatment effect and a low likelihood of a significant difference
c. An inconsistent treatment effect and a high likelihood of a significant difference
d. An inconsistent treatment effect and a low likelihood of a significant difference
D
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Random heterogeneity of subjects can result in increased risk of ____
a. Type I error only b. Type II error only c. both Type I and Type II errors d. neither Type I nor Type II error
Which type of genes become more widespread through natural selection?
a. ?emotive genes b. ?passive genes c. ?aggressive genes d. ?adaptive genes
There has been an increase in the number of same-sex couples opting to have children. Preliminary evidence suggests that
A) ?their children tend to become homosexuals. B) ?their children show signs of being maladjusted. C) ?same-sex parents are similar to their heterosexual counterparts. D) ?lesbian mothers exhibit less maternal behavior than heterosexual mothers.
Examples of ways that could hyperpolarize a local potential include all of the following except:
a. ions flowing through ion channels. b. the charge inside the neurons becomes less negative. c. the neuron receives an excitatory postsynaptic potential. d. the neuron receives an inhibitory postsynaptic potential.