Personality and Interpersonal Influence: Low Adjustment and Low Competitiveness is Associated With Low Assertiveness.

This study examined the relationship between personality and interpersonal assertiveness styles, an important and neglected topic. In all, 396 working adults completed a six-factor personality test measuring work-related traits (HPTI) and a two-dimensional assessment of interpersonal styles (III) assessing four styles: Assertiveness, Passiveness, Hostile aggression, and Manipulative aggression. We were particularly interested in the correlates of aggressive and passive behaviour, as opposed to assertive behaviour.

Understanding how the presence of music in advertisements influences consumer behaviour.

This study investigated how consumer behaviour is influenced by music's emotional valence (sad vs. happy) in advertisements. Female participants (N = 134) watched the same four advertisements with either happy or sad background music.

Social, Demographic, and Psychological Factors Associated with Middle-Aged Mother's Vocabulary: Findings from the Millennium Cohort Study.

Based on a sample of 8271 mothers, this study explored a set of psychological and sociodemographic factors associated with their vocabulary, drawing on data from a large, nationally representative sample of children born in 2000. The dependent variable was maternal vocabulary assessed when cohort members were at fourteen years of age, and the mothers were in their mid-forties. Data were also collected when cohort members were at birth, 9 months old, and at ages 3, 7, 11 and 14 years.

Correlates of climate change skepticism.

While much research has examined the correlates of climate change beliefs from an alarmist perspective, less work has systematically measured climate change skepticism. This study aims to create a comprehensive tool capturing climate skeptics' beliefs and test its association with individual difference variables. 502 European adults completed a 22-item questionnaire on climate change (CC) skepticism as well as measures of ambiguity tolerance, belief in a just world (BJW), dark-side personality traits, and self-esteem.

Correlates of the Dark Tetrad.

This study explored demographic, ideological, self-rating and personality traits correlates of the Dark Tetrad (DT4) which measures Narcissism (Special), Machiavellianism (Crafty), Psychopathy (Wild), and Sadism (Mean) traits. In total, 447 adults completed three tests: a bright-side, work-related, personality test (HPTI: High Performance Type Indicator), a dark-side test (Short Dark Tetrad) and a number of self-ratings. Correlations and regressions showed that all four dark traits were associated with low Adjustment (Neuroticism), but also with high Risk-Taking and Competitiveness (low Agreeableness).