Author Question: Single-subject designs can improve on the pretest-posttest designs by A) adding a control group. ... (Read 25 times)

rlane42 · **on:** Aug 4, 2018

Single-subject designs can improve on the pretest-posttest designs by

A) adding a control group.
B) adding an additional single-subject as a hypothetical control.
C) adding more conditions to the experiment.
D) using a better statistical test to evaluate the data.

Question 2

Which of the following is a weak design because the researcher has no control over the independent variables?

A) single-subject experimental design
B) ex post facto, single-case study
C) single-topic design
D) repeated-measures design