methods
likert scales
personality inventories
personality psychology
psychological tests
Psychometrics is the systematic application of mathematical principles in order to measure (quantify) psychological constructs. Measurement consists of rules for assigning symbols to objects to (a) represent quantities of attributes numerically (scaling), or (b) define whether the objects fall in the same or different categories with respect to a given attribute (classification). [Source: Encyclopedia of Measurement and Statistics; Psychometrics]
psychometrics
quantitative data analysis
quantitative psychology
unfolding method