1. What kinds of problems are best dealt with by single-n designs;2. Whether single-n designs should become more or less frequently used;
3. The extent to which single-n designs have external validity;
4. Whether single-n designs are preferable or inferior to quasi-experimental designs; and
5. Whether single-n designs are preferable or inferior to within-subject designs (in preparing for the debate, you may have them study Table 14.2 ).