An interrupted time series design lacks
A) manipulation of an independent variable
B) statistical control over many extraneous variables
C) a control group
D) external validity

Question

Quizplus · Accepted Answer

An interrupted time series design typically lacks a control group, as it focuses on observing the effects of an intervention or event over time within a single group rather than comparing outcomes between a treated group and a control group.

An Interrupted Time Series Design Lacks