What is ceiling effect and why is it important in tests used for research?
What will be an ideal response?
ANS:
It is a restriction in range at the upper end of a score distribution that prevents individuals from performing to their maximum ability. It is important to consider in research because the effect of a treatment could be underestimated simply because the test does not measure achievement accurately at the upper end of the range.
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If a researcher has developed a research design in which each participant appears in all levels or categories, this would be considered which type of research design?
a. within-subjects design b. t-test for independent means c. between-subjects design d. t-test for one mean
Students will naturally work efficiently in cooperative learning groups because they enjoy the socialization this format offers
Indicate whether the statement is true or false
The first publicly supported high school was established in Boston in what year?
a. 1779 b. 1821 c. 1879 d. 1906
Which of the words below describe a support system and comes in many forms, including extended family, compadres, kinship groups, friends, neighbors, and association with a religious institution?
A) Community resource B) Social network C) Food bank D) WIC