Computerized adaptive testing: the capitalization on chance problem

This paper describes several simulation studies that examine the effects of capitalization on chance in the selection of items and the ability estimation in CAT, employing the 3-parameter logistic model. In order to generate different estimation errors for the item parameters, the calibration sample size was manipulated (N = 500, 1000 and 2000 subjects) as was the ratio of item bank size to test length (banks of 197 and 788 items, test lengths of 20 and 40 items), both in a CAT and in a random test. Results show that capitalization on chance is particularly serious in CAT, as revealed by the large positive bias found in the small sample calibration conditions. For broad ranges of theta, the overestimation of the precision (asymptotic Se) reaches levels of 40%, something that does not occur with the RMSE (theta). The problem is greater as the item bank size to test length ratio increases. Potential solutions were tested in a second study, where two exposure control methods were incorporated into the item selection algorithm. Some alternative solutions are discussed.     

THERE ARE TWO WORD-LENGTH EFFECTS IN VERBAL SHORT-TERM MEMORY:

Abstract— In the word-length effect (WLE), lists of shorter words are better recalled than lists of longer words This effect a fundamental to decay-based theories of verbal short-term memory, such as the phonological loop theory (Baddeley, 1986) The WLE has been attributed to the time taken to articulate words, not their structure, a critical point in the debate between decay and interference theories However, this article, we show that the traditional WLE comprises two opposed effects an advantage for words spoken more quickly (short words in terms of duration) and an advantage for words with more elements (long words in terms of complexity) We also report two interactions a disadvantage for a midlist change in duration and an advantage for a midlist change in complexity These results contradict simple decay- based theories and establish the importance of interference in short- term memory We discuss whether decay is also required     

The role of absolute and relative amounts of time in forgetting within immediate memory: The case of tone-pitch comparisons

Many investigators of auditory sensory memory have assumed that memory loss during a retention interval of some seconds results from a process (such as decay) that depends on the absolute amount of time that has elapsed since presentation of the sound. An alternative possibility, brought to light by studies on immediate verbal memory, is that it is the relative, rather than the absolute, amount of time that matters. We examine these factors in a tone-comparison study by varying not only the retention interval between two tones to be compared, but also the interpair interval. Relative time played a role, but absolute time also appeared to be important. Several concepts of “decay” are considered in relation to the results.     

The epidemiology of suicide-related outcomes in Mexico

Nationally representative data from the Mexican National Comorbidity Survey are presented on the lifetime prevalence and age-of-onset (AOO) distributions of suicide ideation, plan and attempt and on temporally prior demographic and DSM-IV psychiatric risk factors. Lifetime ideation was reported by 8.1% of respondents, while 3.2% reported a lifetime plan and 2.7% a lifetime suicide attempt. Onset of all outcomes was highest in adolescence and early adulthood. The risk of transition from suicide ideation to plan and attempt was highest within the first year of onset of ideation. The presence of one or more temporally prior DSM-IV/CIDI (Composite International Diagnostic Instrument) disorder was strongly related to each suicide-related outcome. Suicidal outcomes are prevalent, have an early AOO, and are strongly related to temporally prior mental disorders in Mexico. Given the early AOO, intervention efforts need to focus more than currently on children and adolescents with mental disorders to be effective in prevention.     

When Are Clients Ready to Terminate?

Termination of psychotherapy has received less attention in the research literature than other aspects of the treatment process. This paper presents a structured framework emphasizing observable markers to indicate when termination with a client is appropriate during cognitive behavioral treatment. The 7 criteria that indicate when a client is ready for termination are: (a) decrease in symptoms as assessed by sound measures; (b) decrease in symptoms that is stable and maintained for 8 weeks; (c) decrease in functional impairment; (d) evidence that the decrease in symptoms is not a spontaneous remission, such as lower symptoms associated with the use of new skills; (e) usage of the new skills, particularly at times or on themes of former vulnerability; (f) sense of pride regarding the new skills, in contrast to initial doubt regarding whether the techniques would work; and (g) carryover of decrease in symptoms to other areas. A case report and discussion regarding the clinical application of the framework is presented.     

Relationship between organizational justice and cyberloafing in the workplace: has "anomia" a say in the matter?

Anomia describes the individual's lack of integration in social life. This study examines the moderating role of work anomia (WA) in the relationship between employees' perceptions of organizational justice (OJ) and workplace Internet misuse (or cyberloafing). The model suggests that WA interacts with that link by tightening their theoretic negative association. Data were collected from 270 (17.46%) of the 1,547 teachers of a Spanish university by Internet e-mail. Multiple hierarchical regression results support that WA acts as a moderator of the OJ-cyberloafing link because the perceptions of three types of OJ (distributive, procedural, and interactional) among employees with low, as compared to high anomia, have a stronger negative relationship with cyberloafing. The findings contribute to a better understanding of the OJ-cyberloafing link, and favor the control of cyberloafing through WA.     

Social Support and Postpartum Depression Revisited: The Traditional Female Role as Moderator among Mexican Women

Women who lack social support tend to have a higher risk of postpartum depression. The present study examined the traditional female role, understood here as the adoption of passive and submissive traits specific to Mexican women, as another risk factor for postpartum depressive symptomatology that interacts with social support. Using two waves of data from a longitudinal study of 210 adult Mexican women (20–44 years-old, M _age = 29.50 years, SD = 6.34), we found that lacking social support during the third trimester of their pregnancy was associated with greater depressive symptoms at 6 months in the postpartum, although this relationship depended on the level of endorsement of the traditional female role during pregnancy. Lower social support during pregnancy predicted greater postpartum depressive symptoms for women with higher endorsement of the traditional female role, even when accounting for prenatal depressive symptoms. These results suggest that Mexican women’s experience of social support may depend on their individual adherence to gender roles. Understanding the association between women’s traditional roles and social support in the risk for postpartum depression can improve prevention and educational programs for women at risk.     

The Free Harmony of the Faculties and the Primacy of Imagination in Kant's Aesthetic Judgment

This essay argues that, contrary to the prevailing view according to which reflection in Kant's aesthetic judgment is interpreted as ‘the logical actus of the understanding’, we should pay closer attention to Kant's own formulation of aesthetic reflection as ‘an action of the power of imagination’. Put differently, I contend in this essay that the rule that governs and orders the manifold in aesthetic judgment is imagination's own achievement, the achievement of the productive synthesis of the ‘fictive power’ (Dichtungsvermögen), entirely independent of the understanding. While this view does not entail that the faculty of the understanding is not necessary in aesthetic reflection, a stronger emphasis on the role of imagination in aesthetic reflection allows us to realize that its schematizing and interpretive activity, while consistent with, goes well beyond the discursive demands of the understanding insofar as it intimates the supersensible ground of freedom that manifests itself as ‘the feeling of life’. Therefore, I show in this essay that the imagination's unique interpretive power has a special role in completing Kant's critical system by facilitating the connection of the sensible to the supersensible, which further helps us appreciate imagination's practical as opposed to merely cognitive significance.     

Group interventions for patients with cancer and HIV disease: Part I: Effects on psychosocial and functional outcomes at different phases of illness

Group interventions for individuals facing cancer or HIV disease have drawn considerable attention among researchers and clinicians over the past 20 years. There is growing evidence that group services may be helpful, but which interventions are most effective for participants at which phases in the trajectory of disease has been less clear. Moreover, professionals working in different intervention settings (e.g., primary prevention vs. clinical care) and different disease sites (cancer vs. HIV disease) often have little awareness of relevant advances in other fields. Efforts to integrate findings in the literature may accelerate research and advance the standard of clinical care. The current article, the first in a series of four special reports, critically evaluates the efficacy of group interventions led by professional or trained facilitators for individuals confronted by cancer or HIV, across the spectrum of illness from elevated risk through advanced disease. We examine psychosocial and functional outcomes for different interventions directed toward different patient subgroups, trace common themes, highlight limitations, and offer recommendations for further research.     

Group interventions for patients with cancer and HIV disease: Part II. Effects on immune, endocrine, and disease outcomes at different phases of illness

There has been great interest in the potential impact of group interventions on medical outcomes. This article reviews the effects of professionally-led groups on immune activity, neuroendocrine function, and survival among patients with cancer or HIV disease. We examine findings concerning different types of group services at different phases of illness. Results are mixed, but the most prominent changes in immune and endocrine activity were associated with structured group interventions for patients with early-stage disease. These findings offer provocative illustrations of relevant mind-body interactions, but their clinical importance has yet to be demonstrated empirically. Group interventions have not been tied consistently to improved survival rates for patients with advanced cancer; few studies as yet have focused on survival outcomes among patients with early-stage cancer or HIV disease.