A Swedish validation of the Berlin Numeracy Test

Recent research has highlighted the importance of considering an individual's level of numeracy, that is their numerical abilities, in a vast variety of judgment and decision making tasks. To accurately evaluate the influence of numeracy requires good and valid measures of the construct. In the present study we validate a Swedish version of the Berlin Numeracy Test (Cokely, Galesic, Schulz, Ghazal & Garcia‐Retamero, 2012). The validation was carried out on both a student sample and a sample representative of the Swedish population. The Swedish BNT showed sound psychometrical properties in both samples. Further, in both samples the BNT had satisfactory convergent and discriminant validity when correlating with other measures of numeracy, while not being significantly related to measures of personality. With respect to predictive validity the results indicated divergent patterns in the two samples. In the student sample, participants scoring highest on the BNT outperformed those in the other three levels, which did not differ in performance. In contrast, in the population sample participants scoring lowest on the BNT performed worse than those in the other three levels, which did not differ in performance. Taken together, however, the results suggest that the Swedish version of the BNT should be considered a valid measure of numeracy in both Swedish student and population representative samples.     

Iconic Prosody in Story Reading

Recent experiments have shown that people iconically modulate their prosody corresponding with the meaning of their utterance (e.g., Shintel et al., 2006). This article reports findings from a story reading task that expands the investigation of iconic prosody to abstract meanings in addition to concrete ones. Participants read stories that contrasted along concrete and abstract semantic dimensions of speed (e.g., a fast drive, slow career progress) and size (e.g., a small grasshopper, an important contract). Participants read fast stories at a faster rate than slow stories, and big stories with a lower pitch than small stories. The effect of speed was distributed across the stories, including portions that were identical across stories, whereas the size effect was localized to size‐related words. Overall, these findings enrich the documentation of iconicity in spoken language and bear on our understanding of the relationship between gesture and speech.     

Disclosing Academic Dishonesty: Perspectives From Nigerian and New Zealand Health Professional Students

Few cross-national studies have been conducted on academic dishonesty. The aim of this study was to explore students’ disclosed levels of academic dishonesty between New Zealand and Nigeria. The measures obtained included incidence, acceptability, and justification of dishonest action. It was hypothesized that there would be differences between the two groups and that differences could be explained in terms of deontology, cultural relativism, utilitarianism, rational fair exchange, and/or response bias. There were 844 medical and health science students who participated in the study and completed a questionnaire that explored incidence, acceptability, and justification of dishonest action. A binary logistic regression revealed that age and incidence were significant predictors of country allocation. Nigerian students reported more engagement in dishonest behaviors, and it is argued that these students have diverse cultural expectations, language variances, response strategies, norms, beliefs, and values. Educational interventions are essential to address concerns related to academic dishonesty such as promoting cross-cultural discourse, providing study skills programs, utilizing peer mentoring, creating formal exchange strategies, and endorsing honor codes.     

Identifying factors that promote consumer behaviours causing expired domestic food waste

Many commentators argue that domestic food waste is strongly influenced by consumer behaviours. This article reports on a study using mixed‐methods to identify key factors responsible for promoting consumer behaviours that lead to domestic food waste through the lens of the value–belief–norm theory. On the basis of the study's findings, three factors are proposed that cause behaviours that lead to food waste: supply knowledge – does a consumer know what food they have available; location knowledge – does a consumer know where to locate food items; and food literacy – to what degree do past experience and acquired knowledge impact on a consumer's food consumption and wastage practices. We analyse the study's findings in light of a review of literature about consumer food wastage behaviours and in turn, present new insights into consumer behaviour, food waste and the use of technology to reduce food waste. Copyright © 2014 John Wiley & Sons, Ltd.     

Stability in the metamemory realism of eyewitness confidence judgments

The stability of eyewitness confidence judgments over time in regard to their reported memory and accuracy of these judgments is of interest in forensic contexts because witnesses are often interviewed many times. The present study investigated the stability of the confidence judgments of memory reports of a witnessed event and of the accuracy of these judgments over three occasions, each separated by 1 week. Three age groups were studied: younger children (8–9 years), older children (10–11 years), and adults (19–31 years). A total of 93 participants viewed a short film clip and were asked to answer directed two-alternative forced-choice questions about the film clip and to confidence judge each answer. Different questions about details in the film clip were used on each of the three test occasions. Confidence as such did not exhibit stability over time on an individual basis. However, the difference between confidence and proportion correct did exhibit stability across time, in terms of both over/underconfidence and calibration. With respect to age, the adults and older children exhibited more stability than the younger children for calibration. Furthermore, some support for instability was found with respect to the difference between the average confidence level for correct and incorrect answers (slope). Unexpectedly, however, the younger children’s slope was found to be more stable than the adults. Compared to the previous research, the present study’s use of more advanced statistical methods provides a more nuanced understanding of the stability of confidence judgments in the eyewitness reports of children and adults.