One of the Big Five personality traits; a person who scores high on this trait is characterized by trust, generosity, kindness, and sympathy—also shapes future experience.

The five primary dimensions of adult personality identified by researchers: extraversion, agreeableness, conscientiousness, neuroticism, and openness/intellect.

One of the Big Five personality traits; a person who scores high on this trait is characterized by efficiency, organization, planfulness, and reliability.

One of the Big Five personality traits; a person who scores high on this trait is characterized by assertiveness, energy, enthusiasm, and outgoingness.

One of the Big Five personality traits; a person who scores high on this trait is characterized by anxiety, self-pity, tenseness, and emotional instability.

The pattern of events that Freud believed occur between ages 3 and 5, when the child experiences a sexual desire for the parent of the opposite sex; the resulting fear of possible reprisal from the parent of the same sex is resolved when the child identifies with that parent.

One of the Big Five personality traits; a person who scores high on this trait is characterized by curiosity, imagination, insight, originality, and wide interests.

The collection of relatively enduring patterns of reacting to and interacting with others and the environment that distinguishes each child or adult.

The stages of personality development suggested by Freud: the oral, anal, phallic, latency, and genital stages.

The stages of personality development suggested by Erikson, involving tasks centered on trust, autonomy, initiative, industry, identity, intimacy, generativity, and ego integrity.

Bandura’s model in which personal, behavioral, and environmental factors interact to influence personality development.

Bandura’s term for an individual’s belief in his or her ability to accomplish tasks.