Heuristic cognitive diagnosis when the Q‐matrix is unknown

Cognitive diagnosis models of educational test performance rely on a binary Q‐matrix that specifies the associations between individual test items and the cognitive attributes (skills) required to answer those items correctly. Current methods for fitting cognitive diagnosis models to educational test data and assigning examinees to proficiency classes are based on parametric estimation methods such as expectation maximization (EM) and Markov chain Monte Carlo (MCMC) that frequently encounter difficulties in practical applications. In response to these difficulties, non‐parametric classification techniques (cluster analysis) have been proposed as heuristic alternatives to parametric procedures. These non‐parametric classification techniques first aggregate each examinee's test item scores into a profile of attribute sum scores, which then serve as the basis for clustering examinees into proficiency classes. Like the parametric procedures, the non‐parametric classification techniques require that the Q‐matrix underlying a given test be known. Unfortunately, in practice, the Q‐matrix for most tests is not known and must be estimated to specify the associations between items and attributes, risking a misspecified Q‐matrix that may then result in the incorrect classification of examinees. This paper demonstrates that clustering examinees into proficiency classes based on their item scores rather than on their attribute sum‐score profiles does not require knowledge of the Q‐matrix, and results in a more accurate classification of examinees.     

Standing in the glory or shadow of the past self: Cultures differ in how much the past self affects current subjective well-being

Research in the past 2 decades has made great strides in understanding cross-cultural differences in the correlates and causes of subjective well-being. On the basis of past findings on the cross-cultural differences in temporal perspectives of the self, the present research examined a cross-cultural difference in individuals' subjective well-being as a function of how positively they viewed their present and past selves. Study 1 showed that both European and Asian Americans had higher subjective well-being when they viewed their present selves more positively. However, positive evaluations of the past self were accompanied by higher subjective well-being only among Asian Americans. Study 2 showed that when induced to think positively (vs. negatively) of the present self, both European and Asian Americans judged their current lives more favorably. However, when led to view the past self positively (vs. negatively), only Asian Americans made more favorable judgments about their current lives. (PsycINFO Database Record (c) 2012 APA, all rights reserved).     

The Influence of Regulatory Fit on Persuasion Under Different Military Operations: The Moderating Effects of Need for Cognition

On the basis of regulatory focus theory (Higgins, 1997 Higgins, E. T. 1997. Beyond pleasure and pain. American Psychologist, 52: 1280–1300. [Crossref], [PubMed], [Web of Science ®] , [Google Scholar]), two experiments were conducted to explore the effects of regulatory fit on persuasion under different military operations. It is proposed that appeals presented in promotion focus frames are more persuasive in promotion focus military operations (e.g., offensive), while prevention focus–framed appeals are more persuasive in prevention focus military operations (e.g., defensive). In study one, 99 military personnel were randomly assigned to either of 2 (messages: promotion vs. promotion focus frame) × 2 (operations: offensive vs. defensive) conditions. No significant results were found. In study two, 53 military cadets were randomly assigned to either of 2 (messages: promotion vs. promotion focus frame) × 2 (operations: offensive with superior forces vs. defensive with inferior forces) conditions. The results indicate that need for cognition (NFC) moderates the effects of regulatory fit on persuasiveness. For high-NFC subjects, promotion focus–framed appeals are more persuasive in numerical superiority attacking operations, whereas prevention ones are more persuasive in numerical inferiority defending operations. This interaction effect was not found for low-NFC subjects.     

Recall and Recognition Measures of Paired Associate Learning in Healthy Aging

ABSTRACT

Associate-recognition has received little attention as a potential clinical tool for detecting early Alzheimer's disease (AD). As an important preliminary stage to investigating the paradigm's diagnostic utility, we designed and administered a verbal associate-recognition task to healthy elderly participants (n?=?62) and compared their performance to that on traditional cued-recall PAL. In both test conditions, the stimulus list comprised of a mixture of highly imageable and less imageable word pairs. Overall, performance on the associate-recognition task was superior to that on the cued-recall analogue. This ‘recognition advantage’ was not attributable to the higher baseline or chance guessing rate in the associate-recognition condition, as the size of the recognition advantage varied across learning trials and stimulus imageability. In comparison to performance on the imageable stimuli, performance on the less imageable stimuli was poor in both associate-recognition and cued-recall conditions. Across the delay, performances were more likely to drop in the cued-recall condition than the associate-recognition condition. These results suggest that verbal associate-recognition may be clinically efficacious and better tolerated in elderly populations than traditional cued-recall paradigms. Although these results are encouraging, further research is required to examine the utility of associate-recognition in clinical populations, particularly early AD.     

The Influence of Task Difficulty on Context Effect - Compromise and Attraction Effects

Research in psychology finds strong context effects in consumer behavior and help consumer make up their mind from choice set when none of each option better than the others in all aspects. Context effect signifies that when evaluating a focal option, individuals take into consideration characteristics of other comparative alternatives rather than only the features of that focal alternative, complicating the decision-making process. The compromise effect and attraction effect (known together as context effect) explain the underlying motivations that cause consumers to choose the middle option and introduce an inferior option to make the originally dominated option more preferable. But past research on this domain has predominantly used an easy-to-count choice scenario (refers to the ease of using individual’s math skill on comparative attributes in the choice task) which is not ideally existed in real world situation. In real world purchasing situations, most of the time consumers become confused by a variety of products presented with irregular pricing, packaging or attributes which are apparently difficult to compare by math skill. This paper aim to examine “When the level of difficulty changed while processing the comparative task on the context of a choice set, how does this influence the resultant occurrence of context effect?” Results from four experiments demonstrate that both compromise and attraction effects decreased when the choice task become more difficult.     

On the temporal dynamics of language-mediated vision and vision-mediated language

Recent converging evidence suggests that language and vision interact immediately in non-trivial ways, although the exact nature of this interaction is still unclear. Not only does linguistic information influence visual perception in real-time, but visual information also influences language comprehension in real-time. For example, in visual search tasks, incremental spoken delivery of the target features (e.g., “Is there a red vertical?”) can increase the efficiency of conjunction search because only one feature is heard at a time. Moreover, in spoken word recognition tasks, the visual presence of an object whose name is similar to the word being spoken (e.g., a candle present when instructed to “pick up the candy”) can alter the process of comprehension. Dense sampling methods, such as eye-tracking and reach-tracking, richly illustrate the nature of this interaction, providing a semi-continuous measure of the temporal dynamics of individual behavioral responses. We review a variety of studies that demonstrate how these methods are particularly promising in further elucidating the dynamic competition that takes place between underlying linguistic and visual representations in multimodal contexts, and we conclude with a discussion of the consequences that these findings have for theories of embodied cognition.     

Exposing operations of power in supervisory relationships

Through a poststructural lens, we examine how power may show itself in relationships between supervisees and supervisors, producing both helpful and harmful effects. Drawing from our own experiences, as well as conversations with other members of our supervisory group, we demonstrate how privileged discourses around professional status, gender, and race may bring about difficulties including a sense of doubt, worry, inadequacy, and a fear of speaking up. We also illustrate how these difficulties can be addressed in a manner that may lessen their influence, while increasing supervisees' sense of agency.     

Asian American college students' suicide ideation: a mixed-methods study

The purpose of this mixed-methods study was to explore the phenomenon of suicide ideation among 293 Asian American college students. Guided by T. Joiner's (2005) interpersonal-psychological theory of suicidal behavior, the authors examined the relationships among perceived burdensomeness, thwarted belongingness, self-construals, and suicide ideation. Compared with thwarted belongingness, perceived burdensomeness was a more robust predictor of suicide ideation. However, thwarted belongingness moderated the positive association between perceived burdensomeness and suicide ideation. Furthermore, interdependent self-construal and independent self-construal both weakened the link between perceived burdensomeness and suicide ideation and between thwarted belongingness and suicide ideation. The authors also conducted a qualitative analysis of participants' open-ended responses about their perceptions of why Asian American college students might consider suicide. The authors identified a core phenomenon of unfulfilled expectations as well as 2 broad themes related to this core phenomenon: unfulfilled intrapersonal expectations and unfulfilled interpersonal expectations, comprising the subthemes of (a) family, (b) relationship, (c) cultural differences, and (d) racism. These findings are discussed in terms of implications for suicide-related clinical interventions and primary prevention efforts among Asian American college students.