When there is differential drop out between groups in a study, this problem is called:

a. Maturation effect
b. Differential attrition
c. History effect
d. Testing effect


Ans: b

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Standard deviation is

a. from the same statistical family as the mean. b. used in conjunction with the median. c. less stable than variance. d. a measure of central tendency.

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Erik Erikson uses what to describe the stages in his psychosocial theory?

A. Levels B. Problems C. Growth charts D. Dichotomies

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Imagine that, as a teacher, you are administering a high-stakes achievement test to your students. You have three English language learners in your class, none of whom knew English before immigrating to this country: François (who immigrated 9 months ago and is now getting individual tutoring in English); Mei-Li (who immigrated 3 years ago and spent the first 2 years in a bilingual education

program); and Maria (who immigrated 7 years ago and is now doing well in her English-only classes). Given what you've learned about the amount of time it typically takes for children to master English as a second language, which of these students has/have probably acquired sufficient knowledge of English to earn valid scores on the high-stakes test? A) None of them B) Only Maria C) Both Mei-Li and Maria D) All three of them

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Describe three factors teachers and parents can use to increase literacy development in deaf students.

Fill in the blank(s) with the appropriate word(s).

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