In time-series designs, what are the two major potential confounding factors that are difficult to control without the addition of a comparison group?

A) instrumentation and history
B) regression to the mean and instrumentation
C) history and attrition
D) instrumentation and selection


Answer: A

Political Science

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The __________ coalition began to slowly disintegrate in the 1968 election

Fill in the blanks with correct word

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The Texas Tea Party is

A) ?a powerful faction within the Texas Republican Party. B) ?a political party that formed to challenge both the Republican and Democratic Parties. C) ?an interest group that promotes the interests of tea growers and distributors. D) ?a minor faction within the Texas Democratic Party.

Political Science

A president is likely to propose the most new programs

A. when international conditions are stable. B. during his or her first year in office. C. after reelection to a second term. D. during his or her last year in office. E. immediately after Congress enacts a major presidential initiative.

Political Science

Most modern alliances __________

A) are formalized in written treaties B) concern military and economic issues C) exist for one issue at one time D) are often broken without consequences

Political Science