Björn N. Persson

Psychiatric patients who underwent a 10-week nature-assisted rehabilitation intervention showed significant reductions in their tendency to feel worry and pessimistic (i.e., harm avoidance) and their sense of feeling defeated. Conversely, patients who in the meantime underwent one-on-one talk therapy interventions demonstrated reductions in impulsi...

We conducted factor analyses to validate the biopsychosocial model of subjective well-being and a general factor (SWBS). The general factor explained about 64% of the total variance in the model, while specific SWBS components together explained 15% of the total variance. Our study suggests SWB as a general factor in a multidimensional biopsychosoc...

We used Item Response Theory in order to investigate the psychometric properties of three Subjective Well-being scales. There was less reliability for respondents with extreme latent scores of subjective well-being. Thus, to improve reliability we point out specific items that need to be modified or added.

Background: Subjective well-being refers to the extent to which a person believes or feels that her life is going well. It is considered as one of the best available proxies for a broader, more canonical form of well-being. For over 30 years, one important distinction in the conceptualization of subjective well-being is the contrast between more af...

In 2010, the National Institute of Mental Health initiated the Research Domain Criteria (RDoC), a new research framework for studying mental disorders. The RDoC is predicated on that psychiatric disorders are fundamentally disorders of the brain, which are best conceptualized as dimensional, and not discrete, phenomena. The RDoC approach stands in...

Psychopathy is a personality disorder that researchers have subdivided into two types: successful and unsuccessful. Nevertheless, little headway has been made regarding how to conceptualize and operationalize success. We consider various accounts of success from the existing literature and make the case for a two-dimensional view of successful psyc...

Machiavellianism is a psychological construct reflecting individual differences in manipulative and strategic thinking, pragmatic morality, and a cynical outlook on life. A recent stream of research has shown that Machiavellianism and psychopathy seem to be redundant constructs and that measures of Machiavellianism do not correspond well with theor...

The Dark Triad Dirty Dozen is one of the quickest ways to measure the Dark Triad. Item Response Theory analyses of the Swedish version showed that all items contributed with substantial information. However, items tapping into psychopathy showed higher thresholds for endorsement than Machiavellianism, and in particular narcissism.

Background: The Dark Triad (i.e., Machiavellianism, narcissism, and psychopathy) can be captured quickly with 12 items using the Dark Triad Dirty Dozen (Jonason & Webster, 2010). Previous Item Response Theory (IRT) analyses of the original English Dark Triad Dirty Dozen have shown that all three subscales adequately tap into the dark domains of per...

The Dark Triad (i.e., Machiavellianism, narcissism and psychopathy) is a popular construct for describing socially aversive personality traits. In recent years, the Short Dark Triad (SD3; Jones & Paulhus, 2014) has become a popular measure for assessing the Dark Triad constructs. However, recent research has called the supposed dissimilarity betwee...

In the last decade, extensive interest has been directed towards the Dark Triad (i.e., Machiavellianism, narcissism and psychopathy), popularly assessed by the Short Dark Triad (SD3; Jones & Paulhus, 2014). Nevertheless, relatively little research has been conducted on the SD3’s factor structure. We investigated the SD3’s psychometric properties in...

We used Item Response Theory to analyze item functionality in the Short Dark Triad Questionnaire. The responses were less reliable when θ was less than 0, while most reliable when θ was 0-3. The one deviation from this pattern was narcissism, which showed stable reliability coefficients between -2 and 3.

A short measure of the Dark Triad (Machiavellianism, psychopathy, and narcissism) showed consistent factor structure and convergent validity. Narcissism, however, didn’t contribute with information to the core constitution of the Dark Triad. Instead, a Single Item Dirty Dark Triad (SIDDT: exploitation of others), accounted for the core of the measu...

Dataset

Background: The dark side of human character has been conceptualized in the Dark Triad Model: Machiavellianism, psychopathy, and narcissism. These three dark traits are often measured using single long instruments for each one of the traits. Nevertheless, there is a necessity of short and valid personality measures in psychological research. As an...

Research reports that empathy is on the decline in present-day society together with an increasing trend in self-enhancing values. Based on the empathy-altruism hypothesis we investigated whether these constructs are interlinked, by analyzing the relationships between emotional and cognitive empathy and 10 universal values. In the first study, usin...

Background: The dark side of human character has been conceptualized in the Dark Triad Model: Machiavellianism, psychopathy, and narcissism. These three dark traits are often measured using single long instruments for each one of the traits. Nevertheless, there is a necessity of short and valid personality measures in psychological research. As an...

Background: The dark side of human character has been conceptualized in the Dark Triad Model: Machiavellianism, psychopathy, and narcissism. These three dark traits are often measured using single long instruments for each one of the traits. Nevertheless, there is a necessity of short and valid personality measures in psychological research. As an...

Using a sample of Swedes and Americans (N = 385), we attempted to understand the Dark Triad traits (i.e., Machiavellianism, narcissism, and psychopathy) in terms of universal social values. The Dark Triad traits correlated significantly with all 10 value types, forming a sinusoid pattern corresponding to the value model circumplex. In regression an...