Browsing by Author "Williams MN"

Now showing 1 - 20 of 21
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    Academic dishonesty, self-control, and general criminality: A prospective and retrospective study of academic dishonesty in a New Zealand university
    (Routledge Taylor & Francis Group, 2012) Williams MM; Williams MN
    Academic dishonesty is an insidious problem that besets most tertiary institutions, where considerable resources are expended to prevent and manage students’ dishonest actions within academia. Using a mixed retrospective and prospective design this research investigated Gottfredson and Hirschi’s self-control theory as a possible explanation for academic dishonesty in 264 university students. The relationship between academic dishonesty and general criminality was also examined. A significant but small to moderate relationship between academic dishonesty and general criminality was present, including correlations with general dishonesty, violent crime and drug offending subcategories. These findings suggested that a general criminological theory may be of use in explaining academic dishonesty, but the overall ability of self-control variables to explain academic dishonesty was not strong. Controlled logistic regressions indicated that a significant positive association with academic dishonesty was only present for one of 6 self-control subscales (self-centeredness), and even this association was only present in the prospective study component. A strong relationship between past and future academic dishonesty was present. Implications of the study for institutions are discussed.
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    Associations between conspiracism and the rejection of scientific innovations.
    (2021-10) Marques MD; Kerr JR; Williams MN; Ling M; McLennan J
    Public opinion regarding scientific developments such as genetically modified food can be mixed. We suggest such science-based technological innovations are rejected by some because they are perceived to be advanced as part of a conspiracy. In nationally representative samples (Australia n = 1011; New Zealand n = 754), we report the associations between five conspiracism facets and anti-science attitudes. Results indicate broad public opposition to genetically modified food and use of nuclear power, but more acceptance of renewable power, potable recycled water, 5G networks, and childhood vaccinations. There were small to moderate associations between the rejection of scientific innovations and conspiracism. Multivariate models estimating unique associations of conspiracism facets with anti-science attitudes suggested several novel and important relationships, particularly for childhood vaccination, genetically modified food, and 5G networks. We discuss the importance of examining factors such as conspiracism in understanding what may motivate and sustain rejection of scientific evidence-based claims about socially contentious technological innovations.
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    Assumptions of multiple regression: Correcting two misconceptions
    (PARE, 6/09/2013) Williams MN; Grajales CAG; Kurkiewicz D; Rudner, L
    In 2002, an article entitled “Four assumptions of multiple regression that researchers should always test” by Osborne and Waters was published in PARE. This article has gone on to be viewed over 264,000 times (as at June 2013), and it is one of the first results displayed in a Google search for “regression assumptions”. While Osborne and Waters’ efforts in raising awareness of the need to check assumptions when using regression are laudable, we note that the original article contained at least two fairly important misconceptions about the assumptions of multiple regression: Firstly, that multiple regression requires the assumption of normally distributed variables; and secondly, that measurement errors necessarily cause underestimation of simple regression coefficients. In this article, we clarify that multiple regression models estimated using ordinary least squares require the assumption of normally distributed errors in order for trustworthy inferences, at least in small samples, but not the assumption of normally distributed response or predictor variables. Secondly, we point out that regression coefficients in simple regression models will be biased (toward zero) estimates of the relationships between variables of interest when measurement error is uncorrelated across those variables, but that when correlated measurement error is present, regression coefficients may be either upwardly or downwardly biased. We conclude with a brief corrected summary of the assumptions of multiple regression when using ordinary least squares.
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    Australasian Public Awareness and Belief in Conspiracy Theories: Motivational Correlates
    (1/02/2022) Marques MD; Ling M; Williams MN; Kerr JR; McLennan J
    Belief in conspiracies is not restricted to the fringe dwellers of society. International research suggests that such beliefs are quite common and that conspiracy theories may serve three basic psychological motives (i.e., epistemic, existential, and relational) for individuals. Yet, little is known about conspiracy theory awareness or belief in Australasia. We report the first large systematic investigation of system-justifying motives using two nationally representative samples of Australians (n = 1011) and New Zealanders (n = 754). Our findings show that almost all are aware of local and international conspiracies, the majority endorse one or more, and that all three psychological motives consistently relate to conspiracy belief, but not to awareness. In a series of hierarchical multiple regressions, we find that relational (i.e., increased anomie and disillusionment with the government) and existential motives (i.e., less trust in others and increased religiosity) are uniquely and relatively more important than epistemic needs (i.e., decreased analytic thinking) as predictors of increased local and international conspiracy belief. Findings are discussed in terms of the importance of understanding conspiracy theories as an ideological belief system that may function to serve underlying psychological motives.
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    Autism in Aotearoa: Is the RAADS-14 a valid tool for a New Zealand population?
    (Hogrefe for the European Association of Psychological Assessment (EAPA), 6/07/2020) Kember S; Williams MN
    Screening measures for autism spectrum disorder (ASD) are important tools for clinicians and researchers. However, where a measure developed and validated for one population is used with another, its performance in this new context must be carefully examined. The RAADS-14, a brief ASD screen developed in Sweden, was evaluated with a sample of New Zealand adults (N = 387), 41 of whom self-reported a prior diagnosis of ASD. The convergent validity of the RAADS-14 (Hypothesis 2) was supported by a strong positive correlation with the AQ-10 (short version of the Autism Spectrum Quotient), r = .81. Discriminant validity (Hypothesis 3) was also supported by a strong negative correlation with the EQ-Short (short version of the Empathy Quotient), r = −.75. However, the measure did not meet inferential criteria for internal consistency (Hypothesis 1), and confirmatory factor analysis (CFA) found a poor fit of the proposed three-factor model (Hypothesis 4) to the data. A cut-off score of 14/42 provided adequate sensitivity (95%) to detect participants with self-reported ASD diagnoses, but not adequate specificity (70%), suggesting a very high rate of false positives should be expected if relying on RAADS-14 scores alone to interpret presence of ASD. In sum, our results do not provide sufficient evidence of reliability and validity to support the use of the RAADS-14 with the New Zealand population. We provide suggestions for refinement of the RAADS-14 that may lead to increased reliability and validity.
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    Contribution to O’Donnell et al. (2017, in press). Registered replication report: Dijksterhuis & van Knippenberg (1998).
    (Association for Psychological Science, 2018) Philipp MC; Williams MN; Cannon PC; Drummond A
    Dijksterhuis and van Knippenberg (1998) reported that participants primed with a category associated with intelligence (“professor”) subsequently performed 13% better on a trivia test than participants primed with a category associated with a lack of intelligence (“soccer hooligans”). In two unpublished replications of this study designed to verify the appropriate testing procedures, Dijksterhuis, van Knippenberg, and Holland observed a smaller difference between conditions (2%–3%) as well as a gender difference: Men showed the effect (9.3% and 7.6%), but women did not (0.3% and −0.3%). The procedure used in those replications served as the basis for this multilab Registered Replication Report. A total of 40 laboratories collected data for this project, and 23 of these laboratories met all inclusion criteria. Here we report the meta-analytic results for those 23 direct replications (total N = 4,493), which tested whether performance on a 30-item general-knowledge trivia task differed between these two priming conditions (results of supplementary analyses of the data from all 40 labs, N = 6,454, are also reported). We observed no overall difference in trivia performance between participants primed with the “professor” category and those primed with the “hooligan” category (0.14%) and no moderation by gender.
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    Do hotter temperatures increase the incidence of self-harm hospitalisations?
    (Routledge, 2016) Williams MN; Hill SR; Spicer J
    A 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.
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    Maximising potential: The psychological effects of the youth development programme project K
    (New Zealand Psychological Society, 2017) Furness K; Williams MN; Veale JF; Gardner DH
    Project K is a positive youth development programme targeting 13-15 year old students with low self-efficacy. It involves three components: wilderness adventure, community challenge and individual mentoring. This longitudinal study aimed to investigate changes in self-efficacy, resilience, connectedness and wellbeing in students participating in Project K. Eighty students (59% male) were recruited from five secondary schools across the North Island of New Zealand for a quasi-experimental study. Participants displaying delinquent behaviour, self-harm, suicidal ideation, or an eating disorder were excluded. Over 14 months, six waves of measurement were completed by Project K participants (n = 49), while four waves of measurement were completed by a control group (n = 31). Analyses using multilevel models showed that completion of Project K had substantial positive effects on selfefficacy, resilience, and wellbeing, although the effect on connectedness was not significant. We conclude that Project K appears to be an effective positive youth development programme for adolescents with low self-efficacy.
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    Mindfulness as practice: A network analysis of FMI data
    (John Wiley and Sons Inc on behalf of the British Association for Counselling and Psychotherapy, 2021-12-01) Smith JH; Kempton HM; Williams MN; van Ommen C
    Mindfulness research implicitly conceives of mindfulness as an identifiable real ‘thing’ that exists beyond what is directly observed. Recently, a new methodology has been developed which allows mindfulness to be modelled as a complex system or network at the level of self-report. In these models, items become a network's nodes, and the statistical relations between them, edges. Interpreted causally, nodes are thought to increasingly influence each other via their edges, such that they become increasingly correlated. This study hypothesises that at a cross-sectional level, this may result in differences in overall network connectivity (density) between practitioners and non-practitioners. Mindfulness networks were estimated for practitioners and non-practitioners using the Friedberg Mindfulness Inventory (FMI). A total of 371 regular mindfulness practitioners and 283 non-practitioners (including 59 irregular practitioners) were recruited online from Amazon Mechanical Turk. Comparisons of practitioners’ and non-practitioners’ networks indicated that network density did not significantly differ, whereas evidence was found in support of a significant difference in network structure. An exploratory analysis revealed substantive group differences in how items (practices) were connected. In particular, the practice of Acceptance appeared more central to the practitioners’ network relative to the non-practitioners' network, indicating Acceptance may be particularly useful for engagement in mindfulness practices. The study supports investigating mindfulness as a complex network at the level of self-report, with implications for how the development of mindfulness is conceptualised. The lack of difference in network density indicates that research is needed to examine network dynamics in the context of regular mindfulness practice.
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    Network analysis applied to post-concussion symptoms in two mild traumatic brain injury samples.
    (Frontiers Media S.A., 2023-07-20) Faulkner JW; Theadom A; Snell DL; Williams MN; Andelic N
    OBJECTIVE: A latent disease explanation cannot exclusively explain post-concussion symptoms after mild traumatic brain injury (mTBI). Network analysis offers an alternative form of explanation for relationships between symptoms. The study aimed to apply network analysis to post-concussion symptoms in two different mTBI cohorts; an acute treatment-seeking sample and a sample 10 years post-mTBI. METHOD: The treatment-seeking sample (n = 258) were on average 6 weeks post-injury; the 10 year post mTBI sample (n = 193) was derived from a population-based incidence and outcomes study (BIONIC). Network analysis was completed on post-concussion symptoms measured using the Rivermead Post-Concussion Questionnaire. RESULTS: In the treatment-seeking sample, frustration, blurred vision, and concentration difficulties were central to the network. These symptoms remained central in the 10 year post mTBI sample. A Network Comparison Test revealed evidence of a difference in network structure across the two samples (p = 0.045). However, the only symptoms that showed significant differences in strength centrality across samples were irritability and restlessness. CONCLUSION: The current findings suggest that frustration, blurred vision and concentration difficulties may have an influential role in the experience and maintenance of post-concussion symptoms. The impact of these symptoms may remain stable over time. Targeting and prioritising the management of these symptoms may be beneficial for mTBI rehabilitation.
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    People do change their beliefs about conspiracy theories-but not often.
    (Springer Nature Limited, 2024-02-15) Williams MN; Ling M; Kerr JR; Hill SR; Marques MD; Mawson H; Clarke EJR
    Recent research has produced a significant body of knowledge about the antecedents and consequences of individual differences in belief in conspiracy theories. What is less clear, however, is the extent to which individuals' beliefs in conspiracy theories vary over time (i.e., within-person variation). In this descriptive and exploratory study, we therefore aimed to describe within-person variability in belief in conspiracy theories. We collected data from 498 Australians and New Zealanders using an online longitudinal survey, with data collected at monthly intervals over 6 months (March to September 2021). Our measure of conspiracy theories included items describing ten conspiracy theories with responses on a 5-point Likert scale. While there was substantial between-person variance, there was much less within-person variance (intraclass r = 0.91). This suggests that beliefs in conspiracy theories were highly stable in our sample. This stability implies that longitudinal studies testing hypotheses about the causes and consequences of belief in conspiracy theories may require large samples of participants and time points to achieve adequate power. It also implies that explanations of belief in conspiracy theories need to accommodate the observation that beliefs in such theories vary much more between people than within people.
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    Perceptions of Powerlessness Are Negatively Associated with Taking Action on Climate Change: A Preregistered Replication
    (Mary Ann Liebert, Inc, 2/12/2020) Williams MN; Jaftha BA
    Despite segments of skepticism, the majority of the general public in most countries believe that climate change is occurring and caused by human activities. Behavior changes by individuals can reduce greenhouse gas emissions to at least some extent, but a range of psychological and economic barriers can prevent individuals from taking action. A survey of New Zealanders by Aitken, Chapman, and McClure (2011) reported that belief in human influence on climate change and the risks of climate change were positively correlated with taking action on climate change. Conversely, perceptions of powerlessness and the commons dilemma were negatively correlated with taking action on climate change. Feeling powerless was associated with placing less importance on climate change as an influence on actions. Although the study by Aitken et al. has been influential, it was exploratory in nature, had a moderate sample size, was not preregistered, and has not previously been replicated. In this study, we report a preregistered replication with a sample of 352 Australians testing four hypotheses based on Aitken et al.'s findings (as summarized above). All four hypotheses were supported, reproducing Aitken et al.'s key findings
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    The psychometric properties of a brief version of the systemizing quotient
    (Hogrefe, 28/08/2016) Veale JF; Williams MN
    The construct of systemizing – the drive to construct or understand systems – has an important role in the Extreme Male Brain theory of autism. While a brief version of the Systemizing Quotient (SQ) has been proposed, there is a need to assess its psychometric properties. This study assessed factorial and construct validity of an 8-item version of the SQ on a sample of 627 participants. A single-factor latent variable model with a single correlated error term showed adequate fit in a confirmatory factor analysis. This model also demonstrated metric invariance across genders when controlling for an effect of age on item responses. Reliability was acceptable, α = .72. As further evidence for construct validity, SQ scores showed expected relationships with mental rotation performance, trait anxiety, childhood extroversion, childhood agreeableness, and gender. Overall, the results indicated good psychometric properties for the brief version of the SQ, suggesting that this scale could be useful when researchers require a systemizing measure that is minimally burdensome to complete.
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    The relationship between temperature and assault in New Zealand
    (Kluwer Academic Publishers, 29/10/2015) Williams MN; Hill SR; Spicer J
    A 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.
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    Validating a measure of children's monitoring-blunting coping styles in dental situations
    (Routledge Taylor & Francis Group, 2012) Williams MN; Jones LM
    The monitoring-blunting theory of coping suggests that when faced with a threatening situation, individuals can respond by either monitoring or avoiding (blunting) threatening information. The current study sought to validate a scale of children's preferences for monitoring or blunting in dental situations (the Monitoring Blunting Dental Scale or MBDS). The psychometric characteristics of the scale were assessed in a sample of 240 New Zealand children aged 11-13. Reliability was adequate for both monitoring (α = 0.74) and blunting (α = 0.76) subscale scores. Convergent validity was indicated by strong correlations (>0.6) between the measure's subscales and those of a related scale, although discriminant validity with respect to dental anxiety was problematic for the blunting subscale. Exploratory factor analysis supported a two-factor monitoring-blunting model, although confirmatory factor analysis indicated reasonable but imperfect fit for this model, SBχ²(251) = 510.7, p < 0.001, RMSEA = 0.066. We reflect on conceptual issues which may underlie the difficulties experienced here and elsewhere in developing psychometrically sound measures of Miller's blunting construct and suggest that the monitoring subscale of the study scale may be most useful to other researchers.
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    What makes for the most intense regrets? Comparing the effects of several theoretical predictors of regret intensity
    (Frontiers in Psychology, 15/12/2016) Towers A; Williams MN; Hill SR; Philipp MC; Flett R
    Several 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.
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    Why social psychologists using Structural Equation Modelling need to pre-register their studies
    Williams MN
    Experimental social psychologists are increasingly aware of the need to pre-register their plans for data collection and analysis. But pre-registrations are still rarely used by social psychologists (and other researchers) who use structural equation modelling (SEM). SEM is useful for testing complex models, but its very capacity for complexity means that it requires many decisions to be made by the researcher. By flexibly making decisions in such a way as to produce a statistical model that has “good” fit, researchers can easily end up reporting a model that fits the sample data well—even if this finding would be entirely unreplicable in a new sample. In this presentation, I will discuss why and how pre-registration can profitably be applied in SEM research. In addition, I will discuss how pre-registration provides a partial resolution to the ongoing and acrimonious debate over which global fit statistics are most appropriate in SEM.