All of the following are guidelines for improving test validity, except:
a. Make sure enough time is provided for students to answer all of the questions
b. Use model answers and rubrics for essays
c. Request student feedback to reduce ambiguity of questions or answer choices
d. Do not mix selected-response and constructed-response items in the same test
d. Do not mix selected-response and constructed-response items in the same test
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Vivian Paley's class rule is, "You can't say you can't play."
a. True b. False Indicate whether the statement is true or false
The ________ of the brain, which allows nerve cells to transmit information at a great speed, appears to be increased for breastfed babies
a. axon b. mylination c. dendrite d. synapse
James, a used car dealer, usually strives to have a good relationship based on trust, with most everyone in town. A new Chrysler salesman, Morgan, moves into town. Which of the following pieces of advice are appropriate for him?
a. Even if the new guy behaves competitively, he should first try to behave cooperatively with him b. He should always trust this guy. After a while, he will win him over, and they can work together. c. He should not trust this guy at all: for one, he is a car salesman, for two, he represents rivalry and competition. d. Use a strategy that will make the new salesman's dealings self-defeating.
Which of the following is a feature of a simple random sample?
a. Subjects are chosen from the population in such a way that each has an equal chance of being selected. b. Choosing one subject increases the probability of another subject being chosen c. Subjects within a sub-population are randomly chosen to ensure that each sub-population is adequately represented d. Subjects consist of those who are available to participate in the study.