At which of the following ages would we be most likely to hear a child using holophrases?
a. Two years of age
b. Three years of age
c. Four years of age
d. Five years of age
a
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Explain how multiple regression can be used to identify a potential mediating variable.
What will be an ideal response?
A stimulus, or group of stimuli, that may reliably set the occasion for a response is:
a. positive reinforcement b. discriminative stimuli c. an S delta d. respondent conditioning
An advantage of participant observation is that the procedure reduces the tendency for
a. the group being observed to try to keep the observer from learning what is going on. b. some subjects in the group to hide their identity. c. the observer to use technical language or jargon. d. the subjects to deny the observer access to relevant activities.
Cybele uses several sources of performance information for her eighth-grade English students. She collects written work in class, she has the students prepare impromptu speeches that she scores for grammar and pronunciation, and she also assigns and scores the students' homework. At the end of the semester, she gives a final grade. This assessment strategy will most likely result in
a. increased reliability of the individual measures. b. increased validity of her decisions overall. c. increased validity of the individual measures. d. increased reliability but decreased validity of the measures.