Typically, by the time they are 8 months old, 90% of infants can:
a. roll over
b. stand alone
c. walk on their own
d. sit unsupported
D
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When did social psychology begin to come into its own as a field?
a. The 1910s and 1920s b. The 1930s and 1940s c. The 1950s and 1960s d. The 1970s and 1980s
What value is estimated with a confidence interval using the repeated-measures t statistic?
a. The mean for a sample of difference scores b. The mean for a population of difference scores c. The difference between two population means d. The difference between two sample means
Benny and June are playing school. Benny is the teacher and June is the student. After a while, they decide they need a principal and some more students, so they ask Johnny and Winona to join them. This activity best demonstrates the concept of _____ play
a. associative b. cooperative c. functional d. parallel
Which of the following is true of operational definition?
A. Operational definition defines how a researcher measures a behavior for a particular study. B. Operational definition provides a way for a researcher to directly observe a behavior for a particular research question. C. A researcher defines an operational definition of a behavior after he collects data. D. Operational definition can affect the issue of reliability in any research setting.