What distinguishes a personality "trait" from a "state" in psychological research?
A: Traits are innate; states are entirely learned through experience
B: Traits are relatively stable cross-situational dispositions; states are temporary psychological conditions that fluctuate with circumstances
C: Traits are consciously accessible; states operate only unconsciously
D: Traits predict single behaviours precisely; states predict broad patterns of behaviour
Correct: Traits are relatively stable cross-situational dispositions; states are temporary psychological conditions that fluctuate with circumstances
A trait is a relatively stable, enduring disposition that influences behaviour consistently across a range of situations and over time. A state, by contrast, is a temporary psychological condition — anxiety before an exam, for example — that fluctuates with circumstances. The stability of traits is one of their defining features and what makes them useful for prediction. However, the degree to which traits are stable versus situation-dependent was fiercely contested in the person-situation debate.
Gordon Allport proposed a hierarchy of traits at three levels. Which option correctly describes all three?
A: Surface traits, source traits, and second-order traits
B: Cardinal traits (rare, dominant, organising), central traits (characteristic ~5–10), and secondary traits (situational, context-specific)
C: Primary traits, secondary traits, and tertiary traits — defined by their frequency of expression
D: Type A traits, Type B traits, and mixed traits — based on physiological arousal levels
Correct: Cardinal traits (rare, dominant, organising), central traits (characteristic ~5–10), and secondary traits (situational, context-specific)
Allport proposed a three-tier hierarchy. Cardinal traits are the most pervasive — they dominate a person's entire life and are rare (e.g., a person so obsessively charitable that it defines their identity). Central traits are the 5–10 characteristic tendencies that most people would use to describe someone. Secondary traits are the most specific — preferences and attitudes that appear only in particular contexts. Allport's hierarchical view emphasised the uniqueness of individual personality (idiographic approach).
Raymond Cattell developed his 16 Personality Factor (16PF) questionnaire using which statistical method to identify underlying trait dimensions?
A: Cluster analysis of self-report items
B: Factor analysis of correlations between large batteries of personality items
C: Structural equation modelling of twin data
D: Multidimensional scaling of peer ratings
Correct: Factor analysis of correlations between large batteries of personality items
Cattell applied factor analysis to intercorrelations among hundreds of personality descriptors (drawn partly from Allport and Odbert's 1936 lexical survey). Factor analysis identifies clusters of items that covary, revealing hypothesised underlying "source traits." Cattell believed he had identified 16 fundamental source traits. Later work showed his solution was unstable, and subsequent researchers — including Fiske (1949), Tupes and Christal (1961), and Norman (1963) — consistently found five broader factors when reanalysing Cattell's data, seeding the Big Five.
Eysenck's PEN model proposes three superordinate personality dimensions. What are they?
A: Power, Emotion, Neuroticism
B: Psychoticism, Extraversion, Neuroticism
C: Persistence, Extraversion, Negativity
D: Psychoticism, Empathy, Nurturance
Correct: Psychoticism, Extraversion, Neuroticism
Eysenck's PEN model proposes three orthogonal (uncorrelated) higher-order dimensions: Psychoticism (P) — cold, asocial, aggressive tendencies, linked to psychopathic and psychotic spectrum disorders; Extraversion (E) — sociability, assertiveness, sensation-seeking; and Neuroticism (N) — emotional instability, anxiety, moodiness. Eysenck grounded all three in biological mechanisms: E in cortical arousal, N in limbic reactivity, P in gonadal hormones and serotonin. The PEN model influenced the Eysenck Personality Questionnaire (EPQ).
The Big Five (OCEAN) model of personality identifies five broad factors. Which of the following correctly lists all five?
A: Openness, Consciousness, Empathy, Agreeableness, Neuroticism
B: Openness to Experience, Conscientiousness, Extraversion, Agreeableness, Neuroticism
C: Openness, Conformity, Extraversion, Altruism, Negativity
D: Optimism, Conscientiousness, Extraversion, Agreeableness, Neuroticism
Correct: Openness to Experience, Conscientiousness, Extraversion, Agreeableness, Neuroticism
The Big Five — Openness to Experience (O), Conscientiousness (C), Extraversion (E), Agreeableness (A), Neuroticism (N) — emerged from decades of lexical research finding that five broad factors reliably appear when factor-analysing personality descriptors across languages and cultures. The model was formalised by Costa and McCrae through the NEO-PI (1985) and NEO-PI-R (1992). It is now the most widely used personality taxonomy in research and applied settings.
Which dimension of the Big Five has the most consistent and robust relationship with job performance across a wide range of occupations?
A: Openness to Experience
B: Conscientiousness
C: Extraversion
D: Agreeableness
Correct: Conscientiousness
Meta-analyses consistently find that Conscientiousness — characterised by self-discipline, orderliness, achievement striving, and dependability — is the single best personality predictor of job performance across occupations, with correlations typically around r = .20–.23. Extraversion predicts performance specifically in social jobs (sales, management). Openness predicts training proficiency. These findings, from Barrick and Mount's (1991) landmark meta-analysis and subsequent replications, have made the Big Five a standard in industrial-organisational psychology.
True or False: Cross-cultural studies have found the Big Five structure to be broadly replicable across languages and cultures, including non-Western populations.
Answer: True
The Big Five has been replicated in numerous languages and cultures, including German, Japanese, Chinese, Spanish, and Dutch, among others. McCrae et al. (2005) found broadly consistent factor structures in 50 cultures. However, the replication is not perfect — some researchers note that the structure is cleaner in WEIRD (Western, Educated, Industrialised, Rich, Democratic) samples, and that certain traits (e.g., Honesty-Humility, captured in the HEXACO model) may be systematically underrepresented in the Big Five framework.
Walter Mischel's 1968 critique of trait theory — the opening salvo of the "person-situation debate" — argued that:
A: Personality traits do not exist and all behaviour is shaped by unconscious drives
B: Cross-situational consistency of behaviour is surprisingly low; observed correlations between traits and behaviours rarely exceed r ≈ .30, suggesting situations are more powerful than stable traits
C: The Big Five is insufficient and personality requires at least 16 dimensions to predict behaviour
D: Traits are valid constructs but only for extreme individuals such as those with personality disorders
Correct: Cross-situational consistency of behaviour is surprisingly low; observed correlations between traits and behaviours rarely exceed r ≈ .30, suggesting situations are more powerful than stable traits
Mischel's 1968 book Personality and Assessment reviewed the evidence for cross-situational consistency and found that trait-behaviour correlations typically did not exceed r ≈ .30 — the "personality coefficient." He argued this weak ceiling suggested that situational factors were more powerful predictors than stable traits. This ignited a decades-long debate. The field eventually resolved partly through the "interactionist" perspective: personality and situations interact, and aggregating behaviour across occasions greatly improves trait-based prediction (Epstein, 1979).
Longitudinal research on Big Five personality traits generally finds which pattern of change across the lifespan?
A: Personality remains perfectly fixed from adolescence, with no normative change across the lifespan
B: Neuroticism and Openness increase, while Conscientiousness and Agreeableness decrease in adulthood
C: Conscientiousness and Agreeableness tend to increase in adulthood, while Neuroticism tends to decrease — a pattern sometimes called the "maturity principle"
D: All Big Five traits decline uniformly after age 60
Correct: Conscientiousness and Agreeableness tend to increase in adulthood, while Neuroticism tends to decrease — a pattern sometimes called the "maturity principle"
Roberts and colleagues' (2006) meta-analysis of 92 longitudinal studies found systematic normative personality change across the lifespan. Conscientiousness and Agreeableness increase substantially in young and middle adulthood. Neuroticism tends to decrease. Openness peaks in young adulthood and declines slightly thereafter. These changes are consistent with the "maturity principle" — personality changes in socially mature directions that support stable relationships and productive work. This refutes the view that personality is fixed after age 30.
The "lexical hypothesis," foundational to the development of Big Five trait taxonomies, proposes that:
A: The most important personality traits can only be discovered through laboratory experiments, not everyday language
B: The most socially important personality differences will be encoded in the natural language of any culture, and thus can be discovered by systematically cataloguing personality-descriptive adjectives
C: Personality can be fully described using a lexicon of exactly five words
D: The meaning of personality terms varies so much across languages that cross-cultural research is impossible
Correct: The most socially important personality differences will be encoded in the natural language of any culture, and thus can be discovered by systematically cataloguing personality-descriptive adjectives
The lexical hypothesis, associated with Francis Galton (1884) and developed by Allport and Odbert (1936), proposes that if a personality characteristic is important enough, people will have coined a word for it. Systematically cataloguing and factor-analysing personality-descriptive adjectives from natural language therefore provides a data-driven route to discovering the fundamental dimensions of personality. Allport and Odbert identified over 17,000 such terms in English; subsequent factor analyses of subsets of these terms consistently yielded five broad factors — the Big Five.
Traits & Trait Taxonomies
What distinguishes a personality "trait" from a "state" in psychological research?
About this quiz
Trait theory proposes that personality can be understood as a set of relatively stable dispositions that shape how people think, feel, and behave across situations. Over a century of work — from Allport's lexical approach to Cattell's factor analysis to the emergence of the Big Five — has produced increasingly refined taxonomies of these dispositions.
This quiz covers the major trait taxonomies, the statistical methods behind them, and the empirical evidence for and against trait-based approaches — including the famous person-situation debate.