Assessment |
Biopsychology |
Comparative |
Cognitive |
Developmental |
Language |
Individual differences |
Personality |
Philosophy |
Social |
Methods |
Statistics |
Clinical |
Educational |
Industrial |
Professional items |
World psychology |
Statistics: Scientific method · Research methods · Experimental design · Undergraduate statistics courses · Statistical tests · Game theory · Decision theory
In the design of experiments treatments are applied to experimental units in the treatment group(s), and not to experimental units in the control group.
In experimental design we consider the treatments as data values or levels of a factor (or combination of factors) that are in our controlled study.