Browsing by Author "Hill SR"
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- ItemDo hotter temperatures increase the incidence of self-harm hospitalisations?(Routledge, 2016) Williams MN; Hill SR; Spicer JA relationship between air temperature and the incidence of suicide has been established in a number of previous studies. Interestingly, the relationship between geographical variation in temperature and suicide incidence has generally been found to be negative, while the relationship between temporal variation in temperature and suicide incidence has generally been found to be positive. It is less clear, however, how temperature relates to the incidence of self-harm. This topic is of particular importance given the presence of ongoing global warming. This study investigated the relationship between temperature and the incidence of self-harm resulting in hospitalisation in New Zealand. Self-harm hospitalisations by date and district for 1993-2009 were obtained from the Ministry of Health. Meteorological data was obtained from NIWA. Generalised linear mixed models were used to estimate the effects of three different components of variation in temperature: geographical, seasonal and irregular. Irregular (random) daily variation in temperature had a modest positive relationship with the incidence of acts of self-harm resulting in hospitalisation, with about 0.7% extra incidents for every 1 °C increase in temperature. However, there was no strong evidence for a positive effect of either seasonal or geographical variation in temperature. We conclude that temperature does appear to bear some relation to the incidence of self-harm, with irregular daily variation in temperature having a positive effect. However, inconsistencies in the effects of different components of variation in temperature make it challenging to accurately predict how global warming will influence the incidence of self-harm.
- ItemEliciting mental models of science and risk for disaster communication: A scoping review of methodologies(Elsevier Ltd, 2022-07-01) Doyle EEH; Harrison SE; Hill SR; Williams M; Paton D; Bostrom AWe present a scoping review of methods used to elicit individuals' mental models of science or risk. Developing a shared understanding of the science related to risk is crucial for diverse individuals to collaboratively manage disaster consequences. Mental models, or people's psychological representation of how the ‘world works’, present a valuable tool to achieve this. Potential applications range from developing effective risk communication for use in short-warning situations to community co-development of future communication protocols for the co-management of risk. A diverse range of tools, in diverse fields, have thus been developed to elicit these mental models. Forty-four articles were selected via inclusion criteria from 561 found through a systematic search. We identified a wide range of direct and indirect elicitation techniques (concept, cognitive, flow, information world, knowledge, mind, and fuzzy cognitive maps, and decision influence diagrams) and interview-based techniques. Many used multiple elicitation techniques such as free-drawing, interviews, free-listing, sorting tasks, attitudinal surveys, photograph elicitation, metaphor analysis, and mapping software. We identify several challenges when designing elicitation methods, including researcher influence, the importance of external visualization, a lack of evaluation, the role of ‘experts’, and ethical considerations due to the influence of the process itself. We present a preliminary typology for elicitation and analysis and suggest future research should explore methods to assess the evolution of mental models to understand how conceptualisations change through time, experience, or public education programs. These lessons have the potential to benefit both science and disaster risk communication activities, given best practice calls for mutually constructed understanding.
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- ItemGlobal poverty, aid advertisements, and cognition: Do media images of the developing world lead to positive or negative responses in viewers(New Zealand Psychological Society, 2010) Kennedy S; Hill SRWhen viewing aid advertising portraying people living in poverty it is easy to automatically activate stereotypes. This can be uncomfortable and people may consciously attempt to avoid using those stereotypes. However, it has been shown that suppressing such stereotypes can rebound and lead to greater subsequent negative stereotypic behaviour. Recent research suggests rebound responses differ according to stereotype content (Kennedy & Hill, 2009). The current experiment compared behaviour in those who suppressed use of stereotypes of two dissimilar social outgroups: people living in poverty and people living in wealth. Effects differed; suppressors tended to be more negatively stereotypical when writing about the wealthy and less negatively stereotypical when writing about those in poverty. Behavioural measures (seating) also tended to diverge. Suppression appears to exaggerate later behavior and raises the possibility that viewers of aid advertising who avoid thinking stereotypically may find that their subsequent behaviour is more strongly driven by their stereotypes of people living in poverty than they may have wished, which in some cases can lead to greater negativity and a reduction of support.
- ItemIn response to "temperature and violent crime in dallas, Texas: relationships and implications of climate change".(2013-09) Williams MN; Hill SR; Spicer J
- ItemInferences about the effect of lockdowns on mental health require causal identification strategies.(2022-01) Williams MN; Hill SR
- ItemThe changing nature of life regrets(2008-11-18) Towers AJ; Flett RA; Hill SR; Alpass FMIntroductionNew life stages promote new life goals and our most intense regrets should change in relation to our new goals and priorities.Research shows that 'Work' and 'Education' regrets are more common for older adults, who also tend to regret their inactions more than their actions. However, past research focuses in frequency and fails to indicate which regrets are actually more intense.We still don't know whether regret intensity changes with time and whether our most frequent regrets are also our most intense. Furthermore, we don't know whether regret-reducing processes, such as justification, are employed differentially across the life-span.
- ItemThe decision appraisal model of regret(2005-11-11) Towers AJ; Flett RA; Hill SR
- ItemThe relationship between temperature and assault in New Zealand(Kluwer Academic Publishers, 2015-10-29) Williams MN; Hill SR; Spicer JA number of previous studies have reported a positive relationship between ambient temperature and the incidence of violent crimes such as assault. This has led some authors to suggest that anthropogenic climate change may result in an increase in violent crime rates. In this study, we report an investigation of the relationship between temperature and assault incidence in New Zealand. Both police data listing recorded assaults as well as data from the Ministry of Health listing hospitalisations due to assault were examined. Geographical, seasonal, and irregular daily variation in temperature were all positively related to the incidence of assault, although only the effect of irregular variation in temperature was robust to controls for plausible confounds. The estimated effect of irregular daily variation in temperature was approximately 1.5 % extra recorded assaults for each 1 °C increase in temperature. It remains difficult, however, to make accurate predictions about future assault rates in a warming world. For example, humans may react to sustained changes in climate in ways that differ markedly from their reaction to short-term variation in temperature. Climate change may also affect rates of violence via mechanisms other than those that currently drive the relationship between temperature and violence. Furthermore, assault rates may continue to change in response to factors unrelated to climate change, such as those responsible for the long-term historical decline in human violence.
- ItemWhat makes for the most intense regrets? Comparing the effects of several theoretical predictors of regret intensity(Frontiers in Psychology, 2016-12-15) Towers A; Williams MN; Hill SR; Philipp MC; Flett RSeveral theories have been proposed to account for variation in the intensity of life regrets. Variables hypothesized to affect the intensity of regret include: whether the regretted decision was an action or an inaction, the degree to which the decision was justified, and the life domain of the regret. No previous study has compared the effects of these key predictors in a single model in order to identify which are most strongly associated with the intensity of life regret. In this study, respondents (N D 500) to a postal survey answered questions concerning the nature of their greatest life regret. A Bayesian regression analysis suggested that regret intensity was greater for—in order of importance—decisions that breached participants’ personal life rules, decisions in social life domains than non-social domains, and decisions that lacked an explicit justification. Although regrets of inaction were more frequent than regrets of action, regrets relating to actions were slightly more intense.
- ItemWhat the hell was I thinking? Understanding the precursors to real-life regret.(2009) Towers AJ; Hill SR; Flett RAThe Dual-Process Theory of Regret (DPTR) proposes that the intensity of real-life regret is a function of both conscious and unconscious thought processes. Previous theories of regret consistently focus on failures of conscious reasoning as the cause of regret, neglecting the role that our unconscious system of thought (based on experience, preferences) plays in real-life daily decision making situations. 653 New Zealanders, ranging in age from 18-87 and varying in ethnic and social background, participated in a postal survey on short-term and long-term life regrets. Results indicate that unconscious thought had significant impact on short-term regret intensity, while the use of both conscious and unconscious thought influenced the intensity of long-term regrets. Furthermore, the trends in regret intensity mirror the trends predicted by the DPTR model, supporting the claim that the intensity of real-life regrets is driven by the interplay of conscious and unconscious systems of thought.
- ItemWhy are beliefs in different conspiracy theories positively correlated across individuals? Testing monological network versus unidimensional factor model explanations(Wiley, 2022-01-27) Williams M; Marques MD; Hill SR; Kerr JR; Ling MA substantial minority of the public express belief in conspiracy theories. A robust phenomenon in this area is that people who believe one conspiracy theory are more likely to believe in others. But the reason for this “positive manifold” of belief in conspiracy theories is unclear. One possibility is that a single underlying latent factor (e.g. “conspiracism”) causes variation in belief in specific conspiracy theories. Another possibility is that beliefs in various conspiracy theories support one another in a mutually reinforcing network of beliefs (the “monological belief system” theory). While the monological theory has been influential in the literature, the fact that it can be operationalised as a statistical network model has not previously been recognised. In this study, we therefore tested both the unidimensional factor model and a network model. Participants were 1553 American adults recruited via Prolific. Belief in conspiracies was measured using an adapted version of the Belief in Conspiracy Theories Inventory. The fit of the two competing models was evaluated both by using van Bork et al.’s (Psychometrika, 83, 2018, 443, Multivariate Behavioral Research, 56, 2019, 175) method for testing network versus unidimensional factor models, as well as by evaluating goodness of fit to the sample covariance matrix. In both cases, evaluation of fit according to our pre-registered inferential criteria favoured the network model.