Sequential detection of learning in cognitive diagnosis

In order to look more closely at the many particular skills examinees utilize to answer items, cognitive diagnosis models have received much attention, and perhaps are preferable to item response models that ordinarily involve just one or a few broadly defined skills, when the objective is to hasten learning. If these fine‐grained skills can be identified, a sharpened focus on learning and remediation can be achieved. The focus here is on how to detect when learning has taken place for a particular attribute and efficiently guide a student through a sequence of items to ultimately attain mastery of all attributes while administering as few items as possible. This can be seen as a problem in sequential change‐point detection for which there is a long history and a well‐developed literature. Though some ad hoc rules for determining learning may be used, such as stopping after M consecutive items have been successfully answered, more efficient methods that are optimal under various conditions are available. The CUSUM, Shiryaev–Roberts and Shiryaev procedures can dramatically reduce the time required to detect learning while maintaining rigorous Type I error control, and they are studied in this context through simulation. Future directions for modelling and detection of learning are discussed.     

Bridging Science and Religion: How Health‐Care Workers as Storytellers Construct Spiritual Meanings

Contrary to the notion that medical science has supplanted religious understandings of human suffering, recent research suggests that health‐care workers like nurses can still portray their confrontations with illness and death in spiritual terms through storytelling. However, scholars have yet to systematically analyze the rhetorical devices used to construct spiritual meanings. Drawing on a symbolic interactionist perspective, we theorize that front‐line health professionals can deploy various rhetorical devices to infuse their workplace interactions with a spiritual significance. We also propose novel fuzzy set analysis techniques for determining which configurations of devices are most important in developing spiritual meanings. This approach was illustrated by examining 173 stories elicited from nurses at a nonsectarian, teaching hospital about encounters at work that significantly impacted their understanding of spirituality. Consistent with our expectations, the way in which nurses tell stories about their experiences not only shapes whether they attach spiritual significance to them, but whether they perceive spirituality and medicine to be compatible. We discuss the implications of our findings for future research on lived religion, conflicting identities, and institutional boundaries.     

Mental illness disclosure in organizations: defining and predicting (un)supportive responses

Employees with a mental illness regularly encounter situations where they must make decisions regarding the extent to which they discuss their stigma. Past research has found links between positive disclosure experiences and positive well-being and job-related outcomes for the individual disclosing. However, research on stigma disclosure has not yet defined what differentiates a supportive response from an unsupportive one, and there is evidence to suggest that people are unsure of how to best respond to a disclosure. In a series of three studies, we sought to develop a better understanding of mental illness disclosure at work. First, we created a typology of supportive and unsupportive responses to disclosure via critical incidents gathered from working adults with a mental illness. Second, we surveyed working adults with and without a mental illness to examine if they perceive the supportiveness of responses differently. Third, in an experimental study, we examined which methods of disclosure are most effective in eliciting a supportive response. This work identifies several types of supportive (e.g., providing emotional support) and unsupportive (e.g., denial of symptoms) responses to mental illness disclosure and finds that individuals without a mental illness have a reasonable understanding of what an individual with a mental illness would also identify as supportive/unsupportive responses. We also find that downplaying one’s mental illness will likely lead to a less supportive response.

     

The Interaction Between Conscientiousness and General Mental Ability: Support for a Compensatory Interaction in Task Performance

Journal of Business and Psychology - We propose a compensatory interactive influence of conscientiousness and GMA in task performance such that conscientiousness is most beneficial to performance...     

Changes in Life Goals Over College: A Comparison Between Men and Women Majoring in STEM

Sex Roles - Informed by goal congruity theory and emerging adulthood theory, this study examined changes over time and gender differences in the importance that college STEM majors placed on three...     

Gender stereotypes and belonging across high school girls’ social groups: beyond the STEM classroom

Social Psychology of Education - Previous research on the impact of gender stereotypes on female adolescents’ feeling of belonging to peer groups has focused on STEM classrooms and...     

Grit Across Nations: The Cross-National Equivalence of the Grit-O Scale

Journal of Happiness Studies - Despite its popularity in practice, the Grit-O Scale has shown inconsistent factorial structures and differing levels of internal consistency in samples outside the...     

Carryover effect of joint attention to repeated events in chimpanzees and young children

Gaze following is a fundamental component of triadic social interaction which includes events and an object shared with other individuals and is found in both human and nonhuman primates. Most previous work has focused only on the immediate reaction after following another’s gaze. In contrast, this study investigated whether gaze following is retained after the observation of the other’s gaze shift, whether this retainment differs between species and age groups, and whether the retainment depends on the nature of the preceding events. In the social condition, subjects (1- and 2-year-old human children and chimpanzees) witnessed an experimenter who looked and pointed in the direction of a target lamp. In the physical condition, the target lamp blinked but the experimenter did not provide any cues. After a brief delay, we presented the same stimulus again without any cues. All subjects looked again to the target location after experiencing the social condition and thus showed a carryover effect. However, only 2-year-olds showed a carryover effect in the physical condition; 1-year-olds and chimpanzees did not. Additionally, only human children showed spontaneous interactive actions such as pointing. Our results suggest that the difference between the two age groups and chimpanzees is conceptual and not only quantitative.     

The development of numerical estimation: evidence against a representational shift

How do our mental representations of number change over development? The dominant view holds that children (and adults) possess multiple representations of number, and that age and experience lead to a shift from greater reliance upon logarithmically organized number representations to greater reliance upon more accurate, linear representations. Here we present a new theoretically motivated and empirically supported account of the development of numerical estimation, based on the idea that number‐line estimation tasks entail judgments of proportion. We extend existing models of perceptual proportion judgment to the case of abstract numerical magnitude. Two experiments provide support for these models; three likely sources of developmental change in children’s estimation performance are identified and discussed. This work demonstrates that proportion‐judgment models provide a unified account of estimation patterns that have previously been explained in terms of a developmental shift from logarithmic to linear representations of number.     

Driver responses to motorcycle and lead vehicle braking events: The effects of motorcycling experience and novice versus experienced drivers

In many countries, motorcyclists are over-represented in traffic collision fatalities and injuries compared to vehicle registrations. Why drivers may violate the right-of-way of motorcyclists traveling as lead vehicles in front of drivers is empirically examined in two studies that were conducted with a moderate-fidelity driving simulator. The purpose of the first study was to determine if drivers, who also held a motorcycle license (N = 16), drove cars differently than regular drivers (N = 16) around motorcycles. The two groups did not differ on responses to motorcycling braking events, which was consistent with previous research on car following. The second study compared the driving performance of sixteen novice teenage drivers (M = 16.2 years of age) to 15 experienced drivers (M = 32.9) over the span of six monthly simulator sessions. Novice drivers’ perception response times (PRT) to the braking events were significantly longer than those of the experienced drivers. PRTs to motorcycle and lead vehicle braking events decreased over sessions. For all participants, PRTs to the motorcycle events were longer than to the car events. The implications of these results for motorcyclists and drivers with different levels of experience are discussed.