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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…

Posthypnotic Suggestion Posthypnotic Suggestions are statements or commands given to people while under hypnosis that the person acts on when in a…

Posthypnotic Amnesia Posthypnotic amnesia is a person’s inability to recall events or information obtained while in a hypnotic state. This can occur…

Postconventional Level Postconventional level is the third and final level of Kohlberg’s moral development taxonomy where individuals enter the highest level of…

Positron Emission Tomography (PET) Positron emission tomography (PET), which is similar to the MRI, is a scanning method that enables psychologists and…

Positivism Positivism is a philosophy in which people believe the goal of knowledge is only to describe what people experience, and that…

Positive Reinforcement A stimulus that increases the frequency of a particular behavior using pleasant rewards. A doggy treat can pleasantly coerce your…

Positive Regard According to Carl Rogers, people have two fundamental psychological needs, positive self-regard and self-actualization. Positive self-regard refers to the need…

Population When conducting research there are lots of factors to consider. Psychologists may want to study, for example, the effect of some…

Ponzo Illusion Named for an Italian psychologist, the Ponzo Illusion is the mindʼs tendency to judge an objectʼs size according to the…