Psychology key terms

Affiliation motive The need to associate with others and maintain social bonds.
Anecdotal evidence Personal stories about specific incidents and experiences.
Case study An in-depth investigation of an individual subject.
Coefficient of determination The percentage of variation in one variable that can be predicted based on the other variable.
Confounding of variables A condition that exists whenever two variables are linked together in a way that makes it difficult to sort out their independent effects.
Conservation Piaget's term for the awareness that physical quantities remain constant in spite of changes in their shape or appearance. Correlation The extent to which two variables are related to each other.
Correlation coefficient A numerical index of the degree of relationship between two variables.
Data collection techniques Procedures for making empirical observations and measurements.
Dependent variable In an experiment, the variable that is thought to be affected ...