In the 2008 election, incumbents and challengers for the Texas Supreme Court took approximately __________ of their political funds from contributors who had business before the court

A key factor in experimental design is the

A) testing of the effects of the dependent variable on the independent variable. B) protection of internal validity by controls to reduce confounding. C) protection of statistical validity by controls to reduce confounding. D) demonstration of a systematic, but not causal, relationship between two variables.

The Judiciary Act of 1789 established the federal circuit courts and district courts

Indicate whether the statement is true or false