Texas makes little attempt to regulate the activities of interest groups except in the area of lobbying

One way to be sure that all "groups" in an experiment are equivalent except for their experience with the independent variable(s) is to use the same participants in all experimental conditions

However, this approach carries the danger of confounding in that a. participants cannot participate in more than one condition. b. random assignment of participants could not be done. c. the sequence in which experimental conditions are experienced can affect performance. d. with fewer different participants, results will not be statistically significant.

Case law refers to

a. judicial decisions that have the force of law. b. the idea that judicial decisions are binding precedents. c. disputes involving harms done to an individual, including injury and nuisance. d. a system that allows judges more room to interpret the law, and their decisions set precedent for lower courts and future court rulings. e. a system based on a strong adherence to existing statutes, with judges having little discretion to interpret the law.