One constraint used in differential research that is NOT used in correlational research is

A) Unobtrusive observation.
B) Carefully constructed measures.
C) Carefully trained research assistants.
D) The selection of one or more specific control groups.


Answer: D

Political Science

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Select the best description of the Hecksher-Ohlin Theorem.

a. Countries with a marginal level of capital tend to export less products they rely on for the purchase of labor intensive products. b. Countries with low levels of capital tend to export less products they rely on for the purchase of labor intensive products. c. Countries with a lot of capital tend to export products they rely on for the purchase of labor intensive products. d. Countries with a marginal level of capital tend to export more products they rely on for the purchase of labor intensive products.

Political Science

The treaty banning landmines was the result of an interesting mixed coalition of Internet-based organizations, middle-power governments, and individual politicians and celebrities

Indicate whether this statement is true or false

Political Science

Every two years, ______________ of the House of Representatives and ______________ of the Senate are up for reelection

a. one-third; all b. all; one-third c. all; two-thirds d. half; half e. all; half

Political Science

A sample of one thousand randomly selected individuals is usually accurate to (plus or minus) _____ percentage points

A) three B) five C) seven D) nine E) eleven

Political Science