________________ of participants is done to obtain a representative sample, and __________ of the participants is done to improve the experimental design of the study

Answer the following statement(s) true (T) or false (F)

1. In designing either a program or a policy, we must describe who does what to whom, in what order, how much, and how often 2. Program or policy evaluation should be designed after implementation has occurred 3. Creating comparison groups for program evaluations can minimize the effects of confounding factors 4. Meta-analysis is a method for creating comparison groups 5. After examining 500+ program evaluations/studies in 1997, the University of Maryland Report concluded that there were NOT sufficient number of credible program/policy evaluations that can provide proper guidance on how to deal with crime

Advocates of school choice and school voucher plans argue that ______ will lead to better-quality schools.

A. competition B. low student–faculty ratios C. more money D. higher teacher salaries