What family dynamic helps improve theory of mind skills?
a. having two parents
b. having a younger sibling
c. having frequent contact with grandparents
d. having older siblings
D. Older siblings challenge younger children to negotiate, play, and get along well with each other.
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LaTanya and her friend Marcus are talking. You observe that LaTanya is leaning in toward Marcus as she speaks to him. According to body positioning, this leaning indicates
a. liking. b. disliking. c. relaxation. d. tension.
Which of the following is the study of mechanisms of gene expression not involving alternations to DNA sequences?
a. Neurogenetics b. Epigenetics c. Transcription factors d. Polymorphism
For a normally distributed set of scores with ? = 200 and ?= 20, what is the probability
of a score being equal to or less than 200? a. .3413 b. .6826 c. .5000 d. .9544
Intelligence involves memory , social ability , and analytical thinking. An IQ test that only measures memory has
A. low content validity B. low positive validity C. low criterion validity D. low discriminant validity