A researcher is interested in examining study habits among high school students. They decide to divide the student body based on their grade levels (e.g., freshmen). The researcher then collects a random sample from each grade level. What kind of sampling design is this researcher using?
A. simple random sampling
B. stratified random sampling
C. cluster sampling
D. disproportionate stratified sampling
Ans: B
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a. civil rights marches on Washington, D.C. b. first Gay Pride parade in Boston c. Stonewall riot in New York City d. bath house raids in San Francisco
In most cases, what type of chromosome(s) give rise to a male?
a. X c. Y b. XX d. XY
A(n) ________ is the removal of one or both breasts, and possibly other tissue around the breast, to eradicate cancer from that area.
A. appendectomy B. lumpectomy C. laparotomy D. colostomy E. mastectomy
________ is a theory that suggests that people can have varying degrees of intimacy, passion, and commitment at any one time in their romantic relationships.
What will be an ideal response?