Dr. Garza conducts an experiment on memory using participants above the age of 65. Because she cannot include all people above the age of 65, she will select what is known as a
a. subgroup
b. sample
c. census
d. population
Answer: b. sample
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By the time infants are 8-9 months of age, they can
a. remain standing by holding onto something. b. walk. c. skip. d. not yet raise their heads.
Many of the procedures for finding an optimal regression equation (whatever that means) are known as
a. hunting procedures. b. trial and error procedures. c. trialwise procedures. d. stepwise procedures.
Sexually transmitted diseases (STDs) that can be prevented by using a condom and safer sex practices include which of the following?
a. gonorrhea and syphilis b. chlamydia and pelvic c. inflammatory disease genital herpes and HPV aka d. all of these
Suppose a researcher conducts a 3 × 2 factorial design with 10 participants observed in each group. How many participants are in this experiment if it is a mixed factorial design in which the second factor is the between-subjects factor?
What will be an ideal response?