The major weakness of the time series design is the failure to control ________.
A)mortality
B)history
C)selection bias
D)instrumentation

Question

Quizplus · Accepted Answer

The major weakness of the time series design is the failure to control for history. This refers to external events or factors that may have an effect on the outcome being measured, making it difficult to determine whether changes in the outcome are due to the intervention or the external factors. While mortality, selection bias, and instrumentation are potential threats to internal validity in research, they are not the major weakness of the time series design.

The Major Weakness of the Time Series Design Is the Failure