In terms of estimating the population variance, what is one disadvantage of dividing SS by df to calculate sample variance?
A. It is an unbiased estimator.
B. It does not have minimum variance.
C. It underestimates the population variance on average.
D. None; there are no disadvantages of dividing SS by df to calculate sample variance.
Ans: B
You might also like to view...
In the context of assessment, "enabling behaviors" are those behaviors that
A) ?help the tester attract the subject's attention. B) ?are extraneous to the requirements of the test situation. C) ?focus the assessment on qualitative analyses of performance. D) ?are required by the assessment to demonstrate the target knowledge.
Odyssey (which was used in Project Intelligence) is:
a. a collection of 15 comic books b. a set of one hundred 45-minute in-class training sessions c. tested in classrooms in Israel d. aimed at helping college students pass their comprehensive exams
Which of the following is a characteristic of ethnographic research?
a. Data are primarily collected through fieldwork experiences. b. Ethnographic research is most often completed by research teams. c. Ethnographic research requires little training but instead relies on intuition. d. Ethnographic research is objective and devoid of political context.
Inclusion
A) has widely replaced the term "mainstreaming." B) emphasizes the placement of a child with special needs in the regular classroom. C) may require a child with special needs to receive assistance from education services in the regular classroom. D) None of these answers are correct. E) All of these answers are correct.