This paper examined the effects of training in creative problem-solving on intelligence. We revisited Stankov’s report on the outcomes of an experiment carried out by R. Kvashchev in former Yugoslavia that reported an IQ increase of seven points, on average, across 28 tests of intelligence. We argue that previous analyses were based on a conservative analytic approach and failed to take into account the reductions in the IQ test variances at the end of the three-years’ training. When standard deviations of the initial test and 2nd retest were pooled in the calculation of the effect sizes, the experimental group’s performance was 10 IQ points higher on average than that of the control group. Further, with the properly defined measures of fluid and crystallized intelligence, the experimental group showed a 15 IQ points higher increase than the control group. We concluded that prolonged intensive training in creative problem-solving can lead to substantial and positive effects on intelligence during late adolescence (ages 18–19).

COVID-19 booster vaccinations have been recommended as a primary line of defence against serious illness and hospitalisation. This study identifies and characterises distinct profiles of attitudes towards vaccination, particularly the willingness to get a booster dose. A sample of 582 adults from Australia completed an online survey capturing COVID-related behaviours, beliefs and attitudes and a range of sociodemographic, psychological, political, social and cultural variables. Latent Profile Analysis (LPA) identified three subgroups: Acceptant (61%), Hesitant (30%) and Resistant (9%). Compared to the Acceptant group, the Hesitant and Resistant groups were less worried about catching COVID-19, used fewer official COVID-19 information sources, checked the news less, were lower on the agreeableness personality dimension and reported more conservatism, persecutory thinking, amoral attitudes and need for chaos. The Hesitant group also reported checking the legitimacy of information sources less, scored lower on the openness to new experiences personality dimension and were more likely than the Resistant and Acceptant groups to report regaining freedoms (e.g., travel) and work requirements or external pressures as reasons to get a booster. The Resistant group were higher on reactance, held more conspiratorial beliefs and rated their culture as being less tolerant of deviance than the Hesitant and Acceptant groups. This research can inform tailored approaches to increasing booster uptake and optimal strategies for public health messaging.

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Neoliberal educational reforms that emphasize market-based competition and individual responsibility have exacerbated socioeconomic segregation in the Australian school system, thereby putting underprivileged students at a greater disadvantage. This necessitates a renewed focus on educational equity. As the public’s policy preferences are important in policymaking, it is essential to understand the factors that contribute to the public’s attitudes toward equity-oriented educational policies. In this study, we investigated beliefs about collective responsibility as a contributing factor. An online survey of adults (N = 1,999) conducted in the most populous state in Australia revealed that people’s beliefs about collective responsibility for socioeconomic achievement gaps positively predicted their support for public assistance to students and schools in need. Furthermore, people’s appraisals of educational equity positively predicted their support for public assistance, partly due to its positive effects on those beliefs about collective responsibility. These results provide insight into ways to shape the public’s attitudes toward equity-oriented educational policies.

Although there has been intense criticism of NAPLAN in educational policy debates in Australia, little scholarly efforts have been made to understand the underlying cognitive mechanisms that contribute to the public narrative about the national testing program. We aim to provide tentative evidence about the way public perceptions about NAPLAN may be formed. Our results show empirical support for the incentive, interpretative, and institutional effects, which suggest ways that national testing program can be improved. That is, it needs to (a) provide a diverse range of incentives to promote people’s self-interest (incentive effect); (b) demonstrate good alignment with the core values, social norms, and attitudes of the given society (interpretative effect); and (c) build a consensus about the institutional use of the test results (institutional effect). We conclude with practical implications and recommendations about seeking public support for the seemingly unpopular national educational policy.