A design in which a single group of subjects is exposed to a treatment (X),and then a single measurement on the dependent variable is taken (O₁)is called a(n)________.
A) factorial design
B) multiple time series design
C) posttest-only control group design
D) one-shot case study
E) alternative group design

Question

Quizplus · Accepted Answer

This design is known as a "one-shot case study" because there is only one group and one measurement taken after the treatment is administered. There is no control group or pretest measurement for comparison, making it a weaker design for establishing causality compared to other designs.

A Design in Which a Single Group of Subjects Is