Psychology RootsPrimacy Effect This is the tendency for the first items presented in a series to be remembered better or more easily, or …
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Preoperational Thought (Pre-Operational Thought) In Piaget’s theory of cognitive development, the second stage is called Preoperational Thought. During this stage, which occurs …
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Prepositional Reasoning Piaget suggests that most children enter the final stage of cognitive development around 12 years of age. It is at …
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Preoperational Stage The preoperational Stage is one of Piaget’s four stages of cognitive development. Infants between the ages of 18 and 24 …
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Premack Principle This is a principle of Operant Conditioning originally identified by David Premack in 1965. According to this principle, some behavior …
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Predictive Validity The relationship between test scores and later performance on knowledge, skill or ability. SATs are said to have predictive validity; …
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Preconventional Level The first level of Kohlberg’s moral development taxonomy where individuals’ ethical principles are guided by the consequences of the action …
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Preconscious The preconscious, according to Freud, is the area that lies between conscious awareness and the unconscious. When thoughts are in the …
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Post-Traumatic Stress Disorder Post-traumatic stress disorder is a psychological disorder where individuals suffer nightmares and other types of emotional distress from a …
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Posthypnotic Suggestion Posthypnotic Suggestions are statements or commands given to people while under hypnosis that the person acts on when in a …