Columbia subject headings:
Harvard subject headings:
Difference (Psychology)--Research--Methodology.
Difference (Psychology)--Statistical methods.
Individual differences--Research--Methodology.
Individual differences--Statistical methods.
Individuality--Research--Methodology.
Individuality--Statistical methods.
Princeton subject headings:
Difference (Psychology)--Research--Methodology.
Difference (Psychology)--Statistical methods.
Individuality--Research--Methodology.
Individuality--Statistical methods.