Making sense of punishment: Transgressors' interpretation of punishment motives determines the effects of sanctions.

Punishment is expected to have an educative, behaviour-controlling effect on the transgressor. Yet, this effect often remains unattained. Here, we test the hypothesis that transgressors' inferences about punisher motives crucially shape transgressors' post-punishment attitudes and behaviour. As such, we give primacy to the social and relational dimensions of punishment in explicating how sanctions affect outcomes. Across four studies using different methodologies (N = 1189), our findings suggest that (a) communicating punishment respectfully increases transgressor perceptions that the punisher is trying to repair the relationship between the transgressor and their group (relationship-oriented motive) and reduces perceptions of harm-oriented and self-serving motives, and that (b) attributing punishment to relationship-oriented (vs. harm/self-oriented, or even victim-oriented) motives increases prosocial attitudes and behaviour. This research consolidates and extends various theoretical perspectives on interactions in justice settings, providing suggestions for how best to deliver sanctions to transgressors.

Morally excused but socially excluded: Denying agency through the defense of mental impairment.

Defendants can deny they have agency, and thus responsibility, for a crime by using a defense of mental impairment. We argue that although this strategy may help defendants evade blame, it may carry longer-term social costs, as lay people's perceptions of a person's agency might determine some of the moral rights they grant them. Three randomized between-group experiments (N = 1601) used online vignettes to examine lay perceptions of a hypothetical defendant using a defense of mental impairment (versus a guilty plea). We find that using a defense of mental impairment significantly reduces responsibility, blame, and punitiveness relative to a guilty plea, and these judgments are mediated by perceptions of reduced moral agency. However, after serving their respective sentences, those using the defense are sometimes conferred fewer rights, as reduced agency corresponds to an increase in perceived dangerousness. Our findings were found to be robust across different types of mental impairment, offences/sentences, and using both manipulated and measured agency. The findings have implications for defendants claiming reduced agency through legal defenses, as well as for the broader study of moral rights and mind perception.

Morally excused but socially excluded: Denying agency through the defense of mental impairment.

Defendants can deny they have agency, and thus responsibility, for a crime by using a defense of mental impairment. We argue that although this strategy may help defendants evade blame, it may carry longer-term social costs, as lay people's perceptions of a person's agency might determine some of the moral rights they grant them. In this registered report protocol, we seek to expand upon preliminary findings from two pilot studies to examine how and why those using the defense of mental impairment are seen as less deserving of certain rights. The proposed study uses a hypothetical vignette design, varying the type of mental impairment, type of crime, and type of sentence. Our design for the registered study improves on various aspects of our pilot studies and aims to rigorously test the reliability and credibility of our model. The findings have implications for defendants claiming reduced agency through legal defenses, as well as for the broader study of moral rights and mind perception.

Influence of population versus convenience sampling on sample characteristics in studies of cognitive aging.

PURPOSE: We examined whether differences in findings of studies examining mild cognitive impairment (MCI) were associated with recruitment methods by comparing sample characteristics in two contemporaneous Australian studies, using population-based and convenience sampling. METHOD: The Sydney Memory and Aging Study invited participants randomly from the electoral roll in defined geographic areas in Sydney. The Australian Imaging, Biomarkers and Lifestyle Study of Ageing recruited cognitively normal (CN) individuals via media appeals and MCI participants via referrals from clinicians in Melbourne and Perth. Demographic and cognitive variables were harmonized, and similar diagnostic criteria were applied to both samples retrospectively. RESULTS: CN participants recruited via convenience sampling were younger, better educated, more likely to be married and have a family history of dementia, and performed better cognitively than those recruited via population-based sampling. MCI participants recruited via population-based sampling had better memory performance and were less likely to carry the apolipoprotein E ε4 allele than clinically referred participants but did not differ on other demographic variables. CONCLUSION: A convenience sample of normal controls is likely to be younger and better functioning and that of an MCI group likely to perform worse than a purportedly random sample. Sampling bias should be considered when interpreting findings.