A randomly selected sample of a population for study is one in which:
a. each member of the population has an equal chance of being selected.
b. participants are randomly assigned to the experimental or the control group.
c. the members are put in a random order, and the researcher picks every third person.
d. there is no method for selecting children for a study.
A
You might also like to view...
The number of students referred for special education services following discharge from a trauma center following a traumatic brain injury is:
a) approximately 50% b) less than 2% c) less than 80% d) 20%
Perhaps ironically, more recent Hispanic immigrants often perform better in school than those who have been here longer. This is called:
a. the immigrant advantage b. immigrant motivation c. immigrant paradox d. first-generation pressure
A researcher reports that the mean difference in the body weight of rats following a pharmacological versus control treatment is 14 g, with a pooled sample variance equal to 256. What is the effect size for this test using estimated Cohen’s d?
A. d = 0.06; small effect size B. d = 0.08; small effect size C. d = 0.88; large effect size D. There is not enough information to answer this question
In the academic approach to curriculum, the teacher acts as a _____________
a. facilitator b. counselor c. disseminator d. manager