About how many years does it take an ELL student to master enough English to reach acceptable levels of academic achievement?
a. 3-4
b. 2
c. 10
d. 4-7
Ans: d
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A researcher plans a special series of classroom lessons designed to increase students' verbal skills. A control group does not have the lessons. Which of the following would most likely be threats to internal validity?
a. History b. Hawthorne effect c. Teacher expectations effect d. Mortality e. b and c
In what type of survey question would a response bias to avoid the extremes be the biggest problem?
a. Checklist c. Scaled item b. Ranking item d. Completion
Children in professional families likely have which experience with affirmations and prohibitions?
a. Prohibitions heard are nearly equal to affirmations heard. b. Prohibitions outnumber affirmations heard. c. Affirmations heard outnumber prohibitions heard. d. There is not a relationship between SES and affirmations
Recommendations for self-administered consequences include:
a. Keep it simple b. Select small, easy to deliver consequences c. Set a meaningful, but easy-to-meet criterion for reinforcement d. All of the above