Patrick D. Dunlop

Predicting integrity with the HEXACO personality model : Use of self-and observer reports

Recent research has suggested that a six-dimensional model of personality called the HEXACO framework may have particular value in organizational settings because of its ability to predict integrity-related outcomes. In this series of studies, the potential value of the HEXACO factor known as Honesty-Humility was further examined. First, the empirical distinctness of this construct from the other major dimensions of personality was demonstrated in a high-stakes personnel selection situation. Second, Honesty-Humility was found to predict scores on an integrity test and a business ethical decision-making task beyond the level of prediction that was possible using measures based on a traditional Big Five model of personality. This finding was also observed when Honesty-Humility was assessed by familiar acquaintances of the target persons. The applicability of the HEXACO model within industrial and organizational psychology was then discussed.

Expecting the unexpected: predicting physiological and psychological wildfire preparedness from perceived risk, responsibility, and obstacles

People who live in wildfire-prone communities tend to form their own hazard-related expectations, which may influence their willingness to prepare for a fire. Past research has already identified two important expectancy-based factors associated with peoples intentions to prepare for a natural hazard: Perceived risk (i.e., perceived threat likelihood and severity) and perceived protection responsibility. We expanded this research by differentiating the influence of these factors on different types of wildfire preparedness (e.g., preparations for evacuation vs. for defending the house) and measured actual rather than intended preparedness. In addition, we tested the relation between preparedness and two additional threat-related expectations: the expectation that one can rely on an official warning and the expectation of encountering obstacles (e.g., the loss of utilities) during a fire. A survey completed by 1,003 residents of wildfire-prone areas in Perth, Australia, revealed that perceived risk (especially risk severity) and perceived protection responsibility were both positively associated with all types of preparedness, but the latter did not significantly predict preparedness after controlling for other predictors and demographics. Also, the two new expectancy-based factors were significantly associated with all types of preparedness, and remained significant predictors of some types of preparedness after controlling for other predictors and demographics: the expectation of being able to rely on an official fire warning and expecting to lose electricity both still predicted less preparedness around house resilience, and expecting to lose water still predicted increased planning preparedness. We discuss public policy implications that follow from this research.

Comparing the Eysenck and HEXACO Models of Personality in the Prediction of Adult Delinquency

Drawing from self and peer reports of personality, the present study compares the structures of the HEXACO and Eysenck models of personality and the models‘ capacity to predict self reported acts of delinquency. Correlations amongst scales revealed that Psychoticism captures elements of both HEXACO Emotionality and Conscientiousness. The Eysenck Lie scale correlated positively with both self and peer reported HEXACO Honesty–Humility and Conscientiousness, suggesting that this validity scale includes substantive variance relating to the latter factors. Regression analyses of personality data from both rater sources revealed that Honesty–Humility and Psychoticism were strong predictors of delinquency that independently offered substantial incremental validity. For self reports, the Extraversion and Lie scales were also strong unique predictors of delinquency. Copyright

Preparing ... for what? Developing multi-dimensional measures of community wildfire preparedness for researchers, practitioners and households

In an effort to reduce wildfire risk to community members, researchers and practitioners have sought to identify the factors that are most effective in motivating community members to engage in preparatory behaviours. Quantitative research in this area has been hampered, however, by a lack of consistency in, and validation of household wildfire preparedness assessments. Consequences have included a difficulty in comparing results across quantitative studies, a poor collective understanding of how existing preparedness assessments were developed and an inability to ascertain how specific preparedness actions are tied to householders’ responses to wildfire. We propose to resolve these issues by (1) presenting a definition of wildfire preparedness for adoption as the standard in quantitative studies, (2) developing a typology of wildfire preparedness that distinguishes between household wildfire goals (i.e. safe evacuation, effective active defence and improving the fire resistance of a property in the absence of an active defender), (3) constructing two new standardised measures of preparedness and (4) undertaking a community survey to investigate the validity of the measures. The development of the new measures will facilitate the standardisation of future research into wildfire preparedness, while differentiating between types of preparedness, and is expected to yield practical benefits.

Predicting delay in residents’ decisions on defending v. evacuating through antecedents of decision avoidance

In the event of a wildfire, Australian residents of wildfire-prone areas have a choice to defend their home or evacuate early. However, rather than deciding on and preparing for one of these fire-responses ahead of time, most residents delay deciding on defending v. evacuating (e.g. they wait and see instead). Recent research has shown that delaying this decision is associated with reduced levels of preparedness for both responses and on the day of a fire, an increased risk to life and property. The current study empirically examined what predicts this decision delay regarding one’s fire-response by measuring two personality traits and several decision-related factors. A longitudinal survey study of residents of multiple wildfire-prone areas in Western Australia showed that the strongest predictor of delaying their decision to defend v. evacuate was a lack of difference in perceived values of defending v. evacuating. These findings have important implications for the design of interventions to reduce the risks associated with such delay. For one, agencies could utilise residents’ value base to reduce decision delay. Alternatively, they could focus on the formation of proper contingency plans and stress the necessity to prepare well for both defending and evacuating.

Embedded Figures Test Performance in the Broader Autism Phenotype: A Meta-analysis

People with autism show superior performance to controls on the Embedded Figures Test (EFT). However, studies examining the relationship between autistic-like traits and EFT performance in neurotypical individuals have yielded inconsistent findings. To examine the inconsistency, a meta-analysis was conducted of studies that (a) compared high and low Autism-Spectrum Quotient (AQ) groups, and (b) treated AQ as a continuous variable. Outcomes are consistent with superior visual search forming part of the broader autism phenotype, but in existing literature, this is evident only when comparing extreme groups. Reanalysis of data from previous studies suggests findings are unlikely to be driven by a small number of high scorers. Monte Carlo simulations are used to illustrate the effect of methodological differences on results.

Hearing loss and cognition in the Busselton Baby Boomer cohort: An epidemiological study

To determine the relationship between peripheral hearing loss (HL) in baby boomers (better‐ear measure) and cognitive function, taking into account the impact of depression or cognitive reserve on this relationship and exploring binaural hearing.

Investigating Retesting Effects in a Personnel Selection Context

Repeat applicants to a fire-fighter position undertook the same cognitive ability and situational judgment tests on multiple occasions and the resultant practice effects were investigated. Practice effects of approximately two fifths of a standard deviation were observed between Times 1 and 2 on timed tests of Abstract Reasoning and Mechanical Comprehension. Smaller practice effects were observed, however, on a timed test of numerical comprehension ability and the untimed Teamwork Knowledge Skills and Abilities situational judgment test. For all four tests, the additional practice effect observed at Time 3 were smaller and nonsignificant; a result supplemented by latent growth curve analyses.

Openness to (Reporting) Experiences That One Never Had: Overclaiming as an Outcome of the Knowledge Accumulated Through a Proclivity for Cognitive and Aesthetic Exploration

Overclaiming—in which individuals overstate their level of familiarity with items—has been proposed as a potential indicator of positive self-presentation. However, the precise nature and determinants of overclaiming are not well understood. Herein, we provide novel insights into overclaiming through 4 primary studies (comprising 6 samples) and a meta-analysis. Based on past empirical work and theoretical discussions suggesting that overclaiming may be the result of several processes—including an egoistic tendency to self-enhance, intentional impression managing behavior, and memory biases—we investigate various potential dispositional bases of this behavior. We hypothesized that overclaiming would best be predicted by a dispositional tendency to be curious and explorative (i.e., high Openness to Experience) and by a dispositional tendency to be disingenuous and self-centered (i.e., low Honesty-Humility). All studies provided support for the first hypothesis; that is, overclaiming was positively associated with Openness. However, no study supported the hypothesis that overclaiming was associated with Honesty-Humility. The third and fourth studies, where multiple mechanisms were compared simultaneously, further revealed that overclaiming can be understood as a result of knowledge accumulated through a general proclivity for cognitive and aesthetic exploration (i.e., Openness) and, to a lesser extent, time spent in formal education.

Predicting Risk-Mitigating Behaviors From Indecisiveness and Trait Anxiety:: Two Cognitive Pathways to Task Avoidance

Past research suggests that indecisiveness and trait anxiety may both decrease the likelihood of performing risk-mitigating preparatory behaviors (e.g., preparing for natural hazards) and suggests two cognitive processes (perceived control and worrying) as potential mediators. However, no single study to date has examined the influence of these traits and processes together. Examining them simultaneously is necessary to gain an integrated understanding of their relationship with risk-mitigating behaviors. We therefore examined these traits and mediators in relation to wildfire preparedness in a two-wave field study among residents of wildfire-prone areas in Western Australia (total N = 223). Structural equation modeling results showed that indecisiveness uniquely predicted preparedness, with higher indecisiveness predicting lower preparedness. This relationship was fully mediated by perceived control over wildfire-related outcomes. Trait anxiety did not uniquely predict preparedness or perceived control, but it did uniquely predict worry, with higher trait anxiety predicting more worrying. Also, worry trended toward uniquely predicting preparedness, albeit in an unpredicted positive direction. This shows how the lack of performing risk-mitigating behaviors can result from distinct cognitive processes that are linked to distinct personality traits. It also highlights how simultaneous examination of multiple pathways to behavior creates a fuller understanding of its antecedents.