What does your research question help to guide?
a. hypothesis
b. correlation
c. sampling error
d. average score
Ans: a
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The number of children who are visually impaired is intellectually or developmentally delayed or learning disabled
a. slightly less b. slightly more c. significantly less d. significantly morethan the number of children who are
The primary reason to initiate a time-out when a student is misbehaving is to
a. encourage them to calm down/recover their focus so some problem-solving can occur. b. remove them from the group so that others' learning is not negatively affected. c. give the teacher a chance to think about how best to respond to the misbehavior. d. punish the student so they associate their misbehavior with a negative occurrence.
A large marketing firm has decided to do a study that describes the needs of practicing teachers regarding instructional materials. The vice-president wants data from 400 practicing teachers. Shawna, a researcher with the firm, sends a mass mailing and when 400 surveys are returned she analyzes the data. Shawna is best illustrating which sampling strategy?
a. Cluster sampling b. Quota sampling c. Purposive sampling d. Convenience sampling
When the null hypothesis involves a continuous variable, would you use a one sample t-test or z-test?
A. t-test B. z-test C. Either D. Neither