scholarly journals The Development And Validation Of The Test Of Astronomy STandards (TOAST)

Author(s):  
Stephanie J. Slater

<p>The Test Of Astronomy STandards (TOAST) is a comprehensive assessment instrument designed to measure students general astronomy content knowledge. Built upon the research embedded within a generation of astronomy assessments designed to measure single concepts, the TOAST is appropriate to measure across an entire astronomy course. The TOASTs scientific content represents a consensus of expert opinion about what students should know from three different groups: the American Association for the Advancement of Science, the National Research Council, and the American Astronomical Society. The TOASTs reliability and validity are established by results from Cronbach alpha and classical test theory analyses, a review for construct validity, testing for sensitivity to instruction, and numerous rounds of expert review. As such the TOAST can be considered a valuable tool for classroom instructors and discipline based education researchers in astronomy across a variety of learning environments.</p>

Author(s):  
Zainab Albikawi ◽  
Mohammad Abuadas

Background: Providing care for schizophrenia patients is complex, and it requires dealing with various psychosocial burdens.Aim: To develop and validate a tool that measures the quality of life and self-stigma (SS) of the schizophrenia patient’s caregiver (QLSSoSPC).Setting: Outpatient psychiatric services clinics in Saudi Arabia.Methods: The current study used a methodological cross-sectional design. A sample of 205 schizophrenia patients’ caregivers was recruited by using a convenient sampling method. Classical Test Theory and Rasch Analysis approaches were used.Results: The developed tool has proven acceptable level of reliability and validity. The analysis confirmed seven-factor structure accounted for 74.4% of the total variance. Cronbach’s reliability statistics for the developed tool were satisfactory and ranged from 0.80 to 0.91.Conclusion: The psychometric properties of the QLSSoSPC tool supported its prospective use and allowing us to recommend the implementation of the tool on behalf of clinical and research purposes.


Assessment ◽  
2018 ◽  
Vol 27 (5) ◽  
pp. 941-958 ◽  
Author(s):  
Mike C. Parent ◽  
Sheila Garos ◽  
Emily Branscome ◽  
Margaret Piper

Existing measures of experiences of sexualization and objectification of women focus on behaviors that men do toward women. However, women may also contribute to the objectification of other women. The aim of the present study was to develop the Women’s Objectification of Women Scale (WOWS). Through a series of four studies using samples of college women and samples obtained through MTurk, we (a) established that existing measures of objectification focus on behaviors that men perform, (b) gathered qualitative data on women’s experiences of objectification by women, (c) developed models of the WOWS using classical test theory methods and item response theory, and (d) subjected the WOWS to confirmatory factor analysis and validity testing. The WOWS is a psychometrically sound, brief assessment of women’s experiences of objectification by other women and may help further research on women’s interpersonal experiences as they pertain to body image concerns, mental health, and well-being.


Sexual Abuse ◽  
2019 ◽  
Vol 32 (8) ◽  
pp. 907-930 ◽  
Author(s):  
Sarah Paquette ◽  
Franca Cortoni

Tools designed to measure the cognitions of individuals who engage in sexual activities with children over the Internet are either based on knowledge about men who had committed contact sexual offenses or cognitive phenomena not specifically associated to offending behaviors. Thus, there is no validated tool specifically designed to assess the offense-supportive cognitions of men who use the Internet to sexually offend children. This study developed and validated the Cognitions of Internet Sexual Offending (C-ISO) scale. A sample of 241 men with online and contact sexual as well as with nonsexual offenses completed the C-ISO scale and its psychometric properties, and latent structure was analyzed using both Classical Test Theory (CTT) and Item Response Theory (IRT), resulting in a final version containing 31 items. The analyses indicate that the C-ISO has excellent psychometric properties and discriminates men with online sexual offenses from those with contact sexual and nonsexual offenses. Implications of the findings for clinical practice and future research are discussed.


2020 ◽  
Vol 64 (3) ◽  
pp. 219-237
Author(s):  
Brandon LeBeau ◽  
Susan G. Assouline ◽  
Duhita Mahatmya ◽  
Ann Lupkowski-Shoplik

This study investigated the application of item response theory (IRT) to expand the range of ability estimates for gifted (hereinafter referred to as high-achieving) students’ performance on an above-level test. Using a sample of fourth- to sixth-grade high-achieving students ( N = 1,893), we conducted a study to compare estimates from two measurement theories, classical test theory (CTT) and IRT. CTT and IRT make different assumptions about the analysis that impact the reliability and validity of the scores obtained from the test. IRT can also differentiate students based on the student’s grade or within a grade by using the unique string of correct and incorrect answers the student makes while taking the test. This differentiation may have implications for identifying or classifying students who are ready for advanced coursework. An exploration of the differentiation for Math, Reading, and Science tests and the impact the different measurement frameworks can have on classification of students are explored. Implications for academic talent identification with the talent search model and development of academic talent are discussed.


2011 ◽  
Vol 42 (1) ◽  
pp. 61-71 ◽  
Author(s):  
K. Klapheck ◽  
S. Nordmeyer ◽  
H. Cronjäger ◽  
D. Naber ◽  
T. Bock

BackgroundClinical research on subjective determinants of recovery and health has increased, but no instrument has been developed to assess the subjective experience and meaning of psychoses. We have therefore constructed and validated the Subjective Sense in Psychosis Questionnaire (SUSE) to measure sense making in psychotic disorders.MethodSUSE was based on an item pool generated by professionals and patients. For pre-testing, 90 psychosis patients completed the instrument. Psychometric properties were assessed using methods of classical test theory. In the main study, SUSE was administered to a representative sample of 400 patients. Factor structure, reliability and validity were assessed and confirmatory factor analyses (CFAs) were used for testing subscale coherence and adequacy of the hypothesized factor structure. Response effects due to clinical settings were tested using multilevel analyses.ResultsThe final version of SUSE comprises 34 items measuring distinct aspects of the experience and meaning of psychoses in a consistent overall model with six coherent subscales representing positive and negative meanings throughout the course of psychotic disorders. Multilevel analyses indicate independence from clinical context effects. Patients relating psychotic experiences to life events assessed their symptoms and prospects more positively. 76% of patients assumed a relationship between their biography and the emergence of psychosis, 42% reported positive experience of symptoms and 74% ascribed positive consequences to their psychosis.ConclusionsSUSE features good psychometric qualities and offers an empirical acquisition to subjective assessment of psychosis. The results highlight the significance of subjective meaning making in psychoses and support a more biographical and in-depth psychological orientation for treatment.


2020 ◽  
Author(s):  
chonghua wan ◽  
Ying Chen ◽  
Li Gao ◽  
Qingqing Zhang ◽  
Peng Quan ◽  
...  

Abstract Background: Quality of life (QOL) for patients with Peptic ulcer disease (PUD) is of interest worldwide and disease-specific instruments are needed for clinical research and practice. This paper focus on the development and validation of the PUD scale under the system of Quality of Life Instruments for Chronic Diseases (QLICD-PU) by the modular approach and both classical test theory and Generalizability Theory. Methods: The QLICD-PU is developed based on programmatic decision-making procedures, including multiple nominal and focus group discussions, in-depth interviews, and quantitative statistical procedures. Based on the data of 153 PUD inpatients, correlation analysis, factor analysis, t-test, and Generalizability Theory analysis (including generalizability study and decision study, ie. G-study and D-study) were used to assess the validity, reliability, and responsiveness of the scale. Results: When the popular scale health survey short form (SF-36) was used as the standard, correlation and factor analysis confirmed good construct validity and criterion-related validity of QLICD-PU. Except for the social domain (0.62), the internal consistency α of all domains is higher than 0.70. The overall score and the test-retest reliability coefficients (Pearson r and intra-class correlation ICC) in all domains are higher than 0.80 (0.77 in the social domain). After treatments, the overall score and scores of all domains have statistically significant changes (P <0.01), except for social impact and sexual function scores. The SRM (Standardized response mean) of domain-level scores ranges from 0.34 to 1.03. The G coefficient and reliability index (Ф coefficient) further confirm the reliability of the scale through more accurate variance components and decision-making information about changes in the number of items. Conclusions: The QLICD-PU can be used as a useful measurement to assess the quality of life of PUD patients with good psychometric characteristics and multiple advantages.


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