A researcher is constructing a test for use in a study. In order to insure the highest reliability, the researcher should
a. increase the number of items on the test.
b. plan to increase item homogeneity.
c. try out the test on a heterogeneous group.
d. All of these are true.
D
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A mutation can consist of variations in a single ______.
a. genotype b. helix c. polymorphism d. nucleotide
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Identify two types of scaffolding in the example
What will be an ideal response?
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Toddlers may behave in a _____ fashion when they see another child crying
a. hurtful b. terrified c. sympathetic d. calm
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Reliability in rating portfolios is enhanced by which of the following?
A. clearly specified evaluation criteria B. collaborative assessment tasks C. student freedom to decide on the types of work to include D. the inclusion of drafts and peer comments as well as final copy
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