Age could affect reaction time, as well as nicotine. How could the researcher have controlled for this potential extraneous variable?

a) by randomly selecting participants from the population
b) by counterbalancing the order of stimulus presentation across participants
c) by matching each participant in the experimental group with a participant of the same age in the control group
d) by using a different dependent variable


C

Political Science

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Which of the following describes the powers of the executive in the weak mayor form of government? (choose one or more options)

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Political Science

Interest groups tend to be more influential when __________.

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Political Science

A research design in which all independent variables are within subjects is a within subjects factorial design

Indicate whether the statement is true or false

Political Science

Party loyalty tends to be passed on from one generation to the next

Indicate whether the statement is true or false

Political Science