The two most important potential confounding factors in time-series designs are
A) history and instrumentation
B) selection and regression to the mean
C) regression to the mean and cohort effects
D) cohort effects and history
Question 2
By using an interrupted time-series design with a single group of participants, researchers can
A) randomly assign participants to treatment conditions.
B) take advantage of data already gathered over a long period of time.
C) create a simulated between-subjects design.
D) attenuate reliability.
William Kentridge, History of the Main Complaint.
The environmental policy changes over time
Out of Many: A History of the American People
Factors That Affect BP
The time spent in each interval of one complete cell cycle of a human cell in culture
The Ames test, which screens compounds for potential mutagenicity