Which one of the following is an example of a verbal message?
A. A student nods her head in agreement while listening to a speech.
B. The mayor's expansive hand gestures drew in the audience.
C. The poet's reading of his own work kept us spellbound.
D. The teacher's facial expression showed compassion.
C
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Pretend reading by a preschooler may not seem to families to be an important step toward real reading
a. True b. False Indicate whether the statement is true or false
Why is construct validity essential in an experiment?
What will be an ideal response?
A limitation of ex post facto research is that
a. null hypotheses cannot be tested. b. random sampling is not possible. c. behavioral observations are difficult and time consuming. d. comparison groups cannot be used. e. generalizations concerning cause and effect are difficult to justify.
The t-test can be characterized as a regression (linear) model if?
A. The outcome variable is categorical. B. The groups have equal sample sizes. C. The experimental groups are represented by a binary variable (i.e. coded 0 and 1). D. A t-test is always different from regression