How do researchers determine what size sample is necessary?
A) By estimating the variability of the characteristic of the population that they want to measure.
B) By estimating the mean of the characteristic of the population that they want to measure.
C) By estimating the reliability of the survey instrument.
D) Both A and B
Answer: A
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The confounding variable hypothesis suggests
A) differences are due to the independent variable. B) statistically significant differences may be due to extraneous variables. C) the null hypothesis is rejected. D) causality can be inferred at the differential level of constraint.
The Anti-Federalists feared the adoption of the Constitution would lead to ______.
a. bigger states overruling the interests of smaller states b. a weaker and more ineffective national government c. increased attacks on property rights d. a tyranny similar to that experienced under British rule