Posted by adrina on Wednesday, January 4, 2012 at 9:57pm.
The two groups are different. Besides, the subjects may realize then that one is the control group and the other is the experimental group.
There is a confounding variable introduced in terms of promptness of arrival, which may influence the dependent variable, whatever that is.
Related Questions
Science/ Experiment - Directions: You are a medical researcher who has just &...
Science Experiment - Directions: You are a medical researcher who has just "...
Science - Directions: You are a medical researcher who has just "discovered...
Psychology - Using the format of an experimental write-up*, describe (and ...
Stats - Post Hoc Analysis - This is a question I am working on. i have ...
Science - Name the type of research for each of the following and rank them 1-5...
Biostats - What statistical method(s) a researcher can use to determine if the ...
Child Psychology - Sara sets up an experiment with a control group and an ...
maths - 5. There are two groups of subjects one of which contains 5 science ...
Child Psychology - Sara sets up an experiment with a control group and an ...
For Further Reading