Psychology Glossary

The Glossary of Psychology describes everything about the World of Psychology. Terms, Treatments, biographies, ... .

Below you see a selection of some articles of this glossary. You can use our search field in the upper right for finding specific articles.

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The Acquired immune deficiency syndrome (AIDS) refers to the disease caused by the human immunodeficiency (or immune deficiency) virus (HIV) that attacks the immune system and leaves the person susceptible to unusual infections.

George Berkeley (1685-1753) one of the earliest theorists who said that the only thing humans experience directly is their own perceptions, or secondary qualities.

Continuity/discontinuity issue refers to a debate among theorists about whether developmental changes are quantitative and continuous, or qualitative and discontinuous, that is, stage

- Formal Operational Stage (11 - 15 years) (Piaget) : Formal Operational Stage refers to the 3rd of the four (4) stages Piaget uses to define cognitive development.

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