Answered step by step
Verified Expert Solution
Question
1 Approved Answer
A researcher assigns one classroom to a new educational program and one classroom to be a comparison group. Afterwards, the researcher wonders whether the difference
A researcher assigns one classroom to a new educational program and one classroom to be a comparison group. Afterwards, the researcher wonders whether the difference between the groups on the posttest could be due to the different initial make-up of the two classes. This researcher is wondering about which threat to validity?
Select one:
a. Mortalityb. Statistical powerc. Selectiond. Random heterogeneity of respondents
Step by Step Solution
There are 3 Steps involved in it
Step: 1
Get Instant Access to Expert-Tailored Solutions
See step-by-step solutions with expert insights and AI powered tools for academic success
Step: 2
Step: 3
Ace Your Homework with AI
Get the answers you need in no time with our AI-driven, step-by-step assistance
Get Started