A researcher may choose to use open-ended rather than closed questions in a questionnaire when the
a. number in the sample is large.
b. researcher is collecting factual information.
c. researcher wants to identify the possible alternative responses to use later in closed questions.
d. researcher is collecting descriptive data.
C
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Teachers should not playfully fool around with language with preschoolers, for it confuses them
a. True b. False Indicate whether the statement is true or false
The cause of bronchopulmonary dysplasia is:
a. Mechanical ventilation treatment of respiratory distress syndrome b. Overproduction of mucous in the lungs c. Artificial surfactant d. Apnea episodes
Answer the following statement(s) true (T) or false (F)
When a control group is nonequivalent, it is possible that selection differences, and not the treatment, can explain differences between groups.
Boys and girls are equally likely to become victims of sexual abuse
a. True b. False