What is the essential difference between case studies and single-case experiments?
A) single-case experiments do not use replication
B) only case studies can include multiple dependent variables
C) only the single-case experiment includes a manipulated independent variable
D) the case study researcher exerts more control over the research setting.

Question

Quizplus · Accepted Answer

The essential difference between case studies and single-case experiments is that only the single-case experiment includes a manipulated independent variable. Case studies may observe and describe a phenomenon without manipulating any variables, whereas single-case experiments involve manipulating an independent variable and observing the effect on a dependent variable. Therefore, option C is correct. The other options are not correct because single-case experiments do use replication (option A), both case studies and single-case experiments can include multiple dependent variables (option B), and the level of control over the research setting may vary depending on the specific study design, rather than the type of study (option D).

What Is the Essential Difference Between Case Studies and Single-Case