What is the variance (s2) for this set of data? 7, 11, 15
a. 11.00
b. 4.00
c. 16.00
d. 10.67
c. 16.00
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Explain how you would put the Premack principle into practice
What will be an ideal response?
Which is the most significant problem facing magazines in schools?
a. Many teachers object to using magazines as curricular materials because of contemporary culture concerns and an emphasis on secular topics. b. Many magazines, candidly speaking, do not cater to middle and secondary students' reading interests and motivations. c. Many school librarians face difficulty deciding which, if any, popular magazines to purchase because of rising subscription costs, shrinking budgets, and an emphasis on curriculum content. d. Many teachers and library media specialists do not have the expertise to purchase quality magazines, especially considering the lack of reference and review sources.
What is artifactual variability?
What will be an ideal response?
A researcher's theory that teaching the alphabet using music shortens the time to learn letters was not found to be statistically significant. The researcher should
a. redo the study using a much larger number of subjects. b. completely rethink and rework the theory. c. state that the results of the study were not conclusive. d. All of these are true.