Examlex
Probability is a number between 0 and 1 that measures the chance or likelihood that some event or set of events will occur.
Systems Theory
A theory proposing that multiple interacting factors generate all behaviour, and that the effects of these factors are bidirectional; that is, the influence of each factor on another changes the other factors, which in turn then influence the original factor. The overall effect of these influences is said to be greater than the sum of the influence of each of the factors.
Biopsychosocial Model
A holistic approach to health and illness that considers biological, psychological, and social factors.
Oedipal Complex
A concept in psychoanalytic theory referring to a child's feeling of desire for their opposite-sex parent and jealousy and rivalry with their same-sex parent.
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