8.
Bored with a life of fighting supercriminals, Superman tries to find a way to occupy his time. Deciding to study superhuman powers, he defines such powers as being "faster than a speeding bullet, more powerful than a locomotive, and able to leap tall buildings in a single bound. Superman has created a(n) ________ of the variable.
a. hypothesis
b. self-report measure
c. physiological measure
d. operational definition
16.
Putting his research plan to work, Superman decides to study Batman, Robin, Aquaman, and Spiderman, and apply his results to all superheroes. In this case "all superheroes" is how Superman is defining his ________.
a. sample
b. random sample
c. representative sample
d. population
24.
After years of experience, super researcher Dr. Yo G. Bear hypothesizes that the more food from stolen picnic baskets in Jellystone Park that a bear eats, the sicker he or she will get. Dr. Bear is hypothesizing that there should be a ________ relationship between the variables.
a. negative correlational
b. positive correlational
c. zero correlational
d. cause-and-effect
29.
Evil arch-criminal Lex Luthor, having discovered that kryptonite destroys Superman's powers, wonders if the substance will also cripple other superheroes. He thus assigns one group of superheroes to an experimental group, feeding them kryptonite soup, and assigns another group to a control condition with vegetable soup. In this case, the type of soup is the ________.
a. dependent variable
b. placebo
c. independent variable
d. correlational variable
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