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p20

1. p20-ARC One of the subunits of ARP2/3. 2. p20-CGGBP (CGG-binding protein1) A protein that binds to the unmethylated form of the trinucleotide repeat ...

common ratio effect

common ratio effect n.   Quick reference

A Dictionary of Psychology (4 ed.)

Reference type:
Subject Reference
Current Version:
2015

...that u (16) < 1.25 × u (10). But the preference of C over D implies that .20 × u (16) > .25 × u (10), which simplifies to u (16) > 1.25 × u (10), a contradiction. In general, if x > y > z are sums of money, and p and q are non-zero probabilities, then the common ratio effect occurs if a decision maker prefers the prospect py + (1 −  p ) y to px + (1 −  p ) z , and also prefers p (1 −  q ) x + (1 −  p )(1 −  q ) z + qz to p (1 −  q ) y + (1 −  p )(1 −  q ) y + qz . Compare Allais paradox , Ellsberg paradox , modified...

House–Tree–Person technique

House–Tree–Person technique n.   Quick reference

A Dictionary of Psychology (4 ed.)

Reference type:
Subject Reference
Current Version:
2015

...is then asked 20 questions about each drawing. Interpretations of the drawings are based on the assumptions that the drawing of the house reveals aspects of the respondent’s home life and family relationships, the tree reflects unconscious feelings about the self, and the person shows aspects of the self, interpreted similarly to the Draw-a-Person test . The test gained a certain notoriety during the 1990s when it was recommended as a device for discovering evidence of sexual abuse in children but was criticized for lack of validity . H–T–P abbrev...

TAT

TAT abbrev.   Quick reference

A Dictionary of Psychology (4 ed.)

Reference type:
Subject Reference
Current Version:
2015

... abbrev . Thematic Apperception Test, one of the best known projective tests , consisting of 31 pictures (originally 20) of emotionally charged social events and situations printed on cards, from which the test administrator selects 20 depending on the age and sex of the respondent, plus a blank card that is presented last. For each picture, the respondent is asked to make up a story that the picture could illustrate, describing the relationship between the people, what has happened to them, what their present thoughts and feelings are, and what the outcome...

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