Glossary F

Fitness may be defined as: (1) the number of copies of one’s genes that endure in later generations;. (2) the genetic contribution of an individual to the next generation's gene pool relative to the average for the population, usually measured by the number of that individual's offspring or close kin that survive to reproductive age;. (3) the patterns of activity or inactivity, endurance or frailty, and illness or health that influence the ability to manage tasks of independent daily living. Moreover, according to Darwin, Fitness is an organism's ability to survive and reproduce.

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The Five fundamental needs of bereaved persons are the following:

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Five variables that influence experiences of bereavement and grief (1) the nature of the prior attachment; (2) the way in which the loss occurred and the concurrent circumstances of the bereaved person; (3) coping strategies used by the bereaved person; (4) the developmental situation of the bereaved person; (5) the nature of the support available to the bereaved person.

Five-Factor Model or FFM proposes that there are five (5) universal dimensions of personality. Moreover, Five-Factor Model refers to a personality theory that posits that any individual's personality is organized along five (5) broad dimensions of personality: 1. neuroticism, 2. extraversion, 3. openness to experience, 4. agreeableness-antagonism, and 5. conscientiousness-undirectedness

Fixation refers to arrested development at a particular stage of psychosexual development attributable to excessive or inadequate gratification at that stage.

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- Fixed action pattern (FAP) : - Fixed action pattern (FAP ) : Fixed action pattern or FAP refers to a stereotyped pattern of behavior that is evoked by a "releasing stimulus"; an instinct. Fixed action pattern is also defined as a fixed sequence of responses elicited by a specific stimulus. Fixed action pattern is also known as Modal action pattern.

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Fixed duration (FD) schedule is defined as a schedule in which reinforcement is contingent upon continuous performance of a behavior for a fixed, predictable period of time.

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Fixed interval (FI) schedule when a reinforcer is given only when a correct response is made after a set amount of time has passed since the last reinforced response. Responses made during the time interval are not reinforced. Fixed interval (FI) schedule also refers to a schedule in which reinforcement is contingent upon the first response after a fixed, predictable period of time.