To assess a wide range of stressors and traumas, we developed a trauma and stressors exposure checklist for adults to capture a wide variety of potential trauma exposure. This study details the extensive development and validation process of the Comprehensive Trauma and Stressors Checklist (CTSC). Study 1 consisted of item pool generation, review of existing trauma measures, content analysis, and expert review and input. Study 2 analyzed reliability and validity of the updated checklist. Participants were recruited from college and community samples (N = 200) and completed the CTSC along with five additional measures. The CTSC demonstrated high internal consistency (α =.96). Good temporal stability was established with a subset of participants (n = 28) who completed the survey twice for test-retest reliability (r = 0.86, p < .001). Significant correlations between scores on the CTSC and the Stressful Life Events Screening Questionnaire, Life Events Checklist for the DSM-5, Intersectional Discrimination Index, and Spiritual Abuse Questionnaire are evidence of strong convergent validity. Finally, the lack of significant correlations between CTSC scores and theoretically unrelated constructs supported the discriminant validity of the CTSC. This study provides preliminary evidence that the CTSC is a reliable and valid measure of exposure to traumas and stressors. Future studies with the CTSC will examine measurement invariance, exploratory and confirmatory factor analysis, and reading level.

Rating scale techniques have been recommended for mental workload assessment. The Modified Cooper-Harper (MCH) Scale is a decision tree scale which has proven to be a reliable indicator of workload. Five additional rating scales were developed to examine rating scale features including a) number of rating scale alternatives, b) decision tree format, c) decision tree hierarchy, and d) (two) computer-implementation(s). The purpose of this study was to improve the sensitivity of the MCH Scale and to try to identify what aspects of the scale contribute to its effectiveness. A simulated flight task emphasizing mediational (cognitive) behavior was used to present low, medium, and high levels of loading to 6 student and thirty licensed pilots. In a Singer-Link GAT-1B flight simulator, the pilots performed three counterbalanced load level flights. After each simulated flight, a rating scale and questionnaire was administered. The results indicated that the paper rating scale having 15 response alternatives and the original decision tree was the most sensitive to load. Both 10-point modifications, the computerized version of the MCH Scale and the version with the decision tree format removed, were somewhat superior to the original MCH Scale, which was also sensitive to load. These findings, however, are not consistent with those obtained in a companion study of communications tasks, indicating that these rating scale measures are task dependent. Use of the MCH Scale is recommended since it alone has consistently demonstrated sensitivity to load across tasks and across studies. / M.S.

The Virginia Guidelines for Uniform Performance Standards and Evaluation Criteria for Teachers represented a significant overhaul of conventional teacher evaluation criteria in Virginia. The policy outlined seven performance standards by which all Virginia teachers would be evaluated. This study explored the application of cognitive diagnostic modeling to measure teachers' perceptions of intra-organizational mechanisms available to support educational professionals in implementing this policy. It was found that a coarse-grained, four-attribute compensatory, re-parameterized unified model (C-RUM) fit teacher perception data better and had lower standard errors than the competing finer-grained models. The Q-matrix accounted for the complex loadings of items to the four theoretically and empirically driven mechanisms of implementation support including characteristics of the policy, teachers, leadership, and the organization. The mechanisms were positively, significantly, and moderately correlated which suggested that each mechanism captured a different, yet related, component of policy implementation support. The diagnostic profile estimates indicated that the majority of teachers perceived support on items relating to "characteristics of teachers." Moreover, almost 60% of teachers were estimated to belong to profiles with perceived support on "characteristics of the policy." Finally, multiple group multinomial log-linear models (Xu and Von Davier, 2008) were used to analyze the data across subjects, grade levels, and career status. There was lower perceived support by STEM teachers than non-STEM teachers who have the same profile, suggesting that STEM teachers required differential support than non-STEM teachers. The precise diagnostic feedback on the implementation process provided by this application of diagnostic models will be beneficial to policy makers and educational leaders. Specifically, they will be better prepared to identify strengths and weaknesses and target resources for a more efficient, and potentially more effective, policy implementation process. It is assumed that when equipped with more precise diagnostic feedback, policy makers and school leaders may be able to more confidently engage in empirical decision making, especially in regards to targeting resources for short-term and long-term organizational goals subsumed within the policy implementation initiative. / Ph. D.

Of the subjective rating scales utilized in workload research the Cooper-Harper scale is the most popular. This decision tree rating scale and modifications of the scale have provided sensitive measurements by discriminating among various mental workload levels. This research is an investigation into the characteristics of a Modified Cooper-Harper rating scale (MCH) developed by Wierwille and Casali (1983). Six rating scale designs emphasizing major characteristics which might cause the MCH scale to be a sensitive measure of mental workload were used in this study. The aims of the research were to discover modifications of the MCH might make it more sensitive. A communications task developed by Casali and Wierwille (1983) was manipulated to present 36 subject pilots, both private and student, with three communications loading levels. The pilots were distributed into the six rating scales by experience level. Six different experience levels were represented in each of the rating scale groupings. Using the communications loading, the presence of a decision tree in the scales appeared to improve the scale's ability to discriminate among loading levels. The expansion of the MCH scale to 15 categories decreased the sensitivity of the MCH rating scale. The standard 10-point MCH rating scale was the most consistent of the six rating scales and attained a high ability to discriminate among loading levels. Finally, a companion mediational task study by Rieger (1983) using the same six rating scales resulted in substantially different results, suggesting that subjective rating scales are extremely task dependent. / M.S.

No / Improving cognition is service users' top research priority for life after stroke, and future research should include outcomes that they deem important. Patient perspectives on outcomes are collected using patient-reported outcome measures (PROMs). There is currently no patient-centred PROM specific for cognitive rehabilitation trials. Objective Inform PROM development by exploring stroke survivor perspectives on the important, measurable impacts of persisting post-stroke cognitive problems. Design Qualitative semi-structured interviews in participants' homes. Participants Purposive sample of 16 cognitively impaired stroke survivors at least six months post-stroke. Methods Interviews used a schedule and communication aids developed through patient consultation. Interviews were transcribed verbatim with non-verbal communication recorded using field notes. Data were analysed using a framework approach to find commonalities to shape the focus and content of an outcome measure. Results Participants identified important impacts of their ‘invisible’ cognitive problems, outside of other stroke-related impairments. Cognitive problems exacerbated emotional issues and vice versa. Changes in self-identity and social participation were prominent. Impact was not spoken about in terms of frequency but rather in terms of the negative affect associated with problems; terms like ‘bothered’ and ‘frustration’ were often used. Conclusions The results support the development of a PROM specifically designed to address the impact of cognitive problems. It should: include items addressing a comprehensive range of cognitive skills; ask questions about mood, self-identity and social participation; use accessible wording that respondents understand and endorse; measure impact rather than frequency; and explore perceived impact on carers.

Divergent thinking (DT) tasks that solicit responses to open-ended stimuli are the most common form of assessment used in creativity research. Intended to measure creative potential, these tasks present researchers with multiple choices throughout administration and scoring that often result in widely varying scores. This study used a combined dataset from 9 independent samples (N = 1,066) containing DT responses (n = 15,935) to the alternate uses task to evaluate substantive validity under different scoring approaches. Human ratings of creative quality were compared to 11 additional quality scores based on statistical infrequency and semantic distance. Psychometric analyses were supplemented by review of response content to assess conceptual and operational correspondence. Results revealed several inconsistencies between and within scoring approaches, including considerable subjectivity required to group semantically equivalent responses before applying objective frequency rules; low reliability estimates for statistically unique responses; dictionary uses for some prompts scored as unique under 5% and 10% infrequency thresholds; variation in semantic distance scores of responses with similar meanings; and large within-subject differences across scoring types. Substantive review also indicated that how the creative dimension of appropriateness is operationalized can play a sizable role in score differences, such as treatment of responses featuring randomness, humor, fantasy, or cultural references. Recommendations for expanded reporting practices to support substantive validity in future DT research are discussed.

Previous research has been limited regarding the measurement of computational thinking, particularly as a learning progression in K-12. This study proposes to apply a multidimensional item response theory (IRT) model to a newly developed measure of computational thinking utilizing both selected response and open-ended polytomous items to establish the factorial structure of the construct, apply the recently introduced composite and structured constructs models, and to investigate the measurement invariance of the assessment between males and females using the means and covariance structures (MACS) approach.

Industrial and Organisational Psychology / M. Com. (Industrial and Organisational Psychology )

The objective of this study was to determine if a statistically significant positive relationship exists between the cognitive tests (APIL and Critical Reasoning Test Battery - NCR2 and VCR2) and the academic performance of students on an MBA programme. A quantitative cross-sectional study was conducted on a non-probability purposive sample (N=329) of MBA students at an institution of higher learning in South Africa. A theoretical relationship was established between the variables. The empirical relationship revealed statistically significant relationships between the cognitive tests and academic performance on an MBA programme. The findings contribute valuable knowledge to the field of psychological assessment that can be applied in the selection of students for higher education. / Industrial & Organisational Psychology / M. Com. (Industrial and Organisational Psychology)

Source: Dissertation Abstracts International, Volume: 70-03, Section: B, page: 1601. Adviser: Pamela M. Diamond. Includes bibliographical references.