Why must error variance be minimized in an experiment?

a. it leads to confounding
b. it obscures the effects of the independent variable
c. it leads to differential attrition
d. it increases experimenter expectancy effects
e. all of the above

B

Political Science

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High-ranking members of the ruling party select the

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Direct attacks on terrorist forces are usually carried out by this type of unit: ____________________, the same used to find and assassinate Osama Bin Laden

Fill in the blank(s) with correct word

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