METHODOLOGY AND STATISTICS

I. METHODOLOGY

II. EXPERIMENTATION

 

How Some Experiments Go Wrong

There are a number of events that can occur before, during and after an experiment that can have a negative impact on the psychological research study. Poorly planned studies will yield results that are useless, misleading or worse. Here are some of them.

To counter some of the problems involved, the primary investigator can design the study so that the experimenter and/or the participant are unaware of the purpose of the study. When just the participant or just the experimenter does not know the purpose, it is called a "single-blind" study. If both experimenter and participants do not know it is called "double-blind."

 

III. STATISTICS