Error variance
a. obscures the effects of the variables in which the researcher is primarily interested
b. should be maximized
c. is always caused by researchers' mistakes
d. creates effects that are opposite to those predicted by the researcher
e. always leads researchers to draw incorrect conclusions from their data
A
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During the feudal era in Europe,
a. various levels and ranks of nobility resulted in a system where authority was hierarchical. b. the bipolar system was obviously in place. c. the Holy Roman Emperor (or pope) had little impact on governments. d. the balance-of-power system was evident.
Which of the following is a private sector professional association?
A. Texas Farm Bureau B. Texas Medical Association C. State Chamber of Commerce D. Texas State Teachers Association