1,387 research outputs found
Developing items using by pilot test, confirmatory factor analysis statistical in literacy for communication and supervision clinical elements provider
This research about the communication and supervision developments as an element in the future set of questionnaire. The set of questionnaire aspect need regarding medical learning of trainee doctor. The selected of two elements based on previous research, the theory and model support the importance of both. The researcher also use several of set a questionnaire from previous of research as adaptation process to create the elements and further the strength by validity testing via experts of study. A number of samples selected as respondents are 222 from 250 number of population. Referring on research objective achievement, the number of items has been changed after validity test. For the reliability test, all items after validity test selected are accepted. The confirmatory factor analysis has been shown that two items from communication elements and two items from supervision have been rejected. The final decision numbers of items in communication elements are eight, while in supervision are 12 items
The Design and Validation of the Colorado Learning Attitudes about Science Survey
The Colorado Learning Attitudes about Science Survey (CLASS) is a new instrument designed to measure various facets of student attitudes and beliefs about learning physics. This instrument extends previous work by probing additional facets of student attitudes and beliefs. It has been written to be suitably worded for students in a variety of different courses. This paper introduces the CLASS and its design and validation studies, which include analyzing results from over 2400 students, interviews and factor analyses. Methodology used to determine categories and how to analyze the robustness of categories for probing various facets of student learning are also described. This paper serves as the foundation for the results and conclusions from the analysis of our survey dat
INDICADORES DE AVALIAÇÃO DE DESEMPENHO ECONÔMICO EM COOPERATIVAS AGROPECUÃRIAS: UM ESTUDO EM COOPERATIVAS PAULISTAS
The objective of this work was to identify the main economic and financial indicators which should be considered in the evaluation of the performance of agricultural cooperatives. Cooperatives have two dimensions, social and economic, and studies have shown that, in agricultural cooperatives, the social performance is a consequence of the economic performance. Therefore, the performance of these entities was evaluated using economic and financial indicators. Applying the Factor Analysis statistical technique to 150 financial statements of agricultural cooperatives from São Paulo state, from 2001 to 2006, it was possible to find out the level of correlation among several indicators, as well as to group them into factors. Four main factors were found by combining indicators. It can be concluded that the application of factorial analysis made the choice of the key indicators more objective. Grouping these indicators into factors made it possible to analyze simultaneously various indicators and the classification and comparison of the performance of the agricultural cooperatives was more objective.economical indicators, factor analysis, performance., Agribusiness, Agricultural Finance, Industrial Organization,
Psychometrics in Behavioral Software Engineering: A Methodological Introduction with Guidelines
A meaningful and deep understanding of the human aspects of software
engineering (SE) requires psychological constructs to be considered. Psychology
theory can facilitate the systematic and sound development as well as the
adoption of instruments (e.g., psychological tests, questionnaires) to assess
these constructs. In particular, to ensure high quality, the psychometric
properties of instruments need evaluation. In this paper, we provide an
introduction to psychometric theory for the evaluation of measurement
instruments for SE researchers. We present guidelines that enable using
existing instruments and developing new ones adequately. We conducted a
comprehensive review of the psychology literature framed by the Standards for
Educational and Psychological Testing. We detail activities used when
operationalizing new psychological constructs, such as item pooling, item
review, pilot testing, item analysis, factor analysis, statistical property of
items, reliability, validity, and fairness in testing and test bias. We provide
an openly available example of a psychometric evaluation based on our
guideline. We hope to encourage a culture change in SE research towards the
adoption of established methods from psychology. To improve the quality of
behavioral research in SE, studies focusing on introducing, validating, and
then using psychometric instruments need to be more common.Comment: 56 pages (pp. 1-36 for the main paper, pp. 37-56 working example in
the appendix), 8 figures in the main paper. Accepted for publication at ACM
TOSE
A Common-Factor Approach for Multivariate Data Cleaning with an Application to Mars Phoenix Mission Data
Data quality is fundamentally important to ensure the reliability of data for
stakeholders to make decisions. In real world applications, such as scientific
exploration of extreme environments, it is unrealistic to require raw data
collected to be perfect. As data miners, when it is infeasible to physically
know the why and the how in order to clean up the data, we propose to seek the
intrinsic structure of the signal to identify the common factors of
multivariate data. Using our new data driven learning method, the common-factor
data cleaning approach, we address an interdisciplinary challenge on
multivariate data cleaning when complex external impacts appear to interfere
with multiple data measurements. Existing data analyses typically process one
signal measurement at a time without considering the associations among all
signals. We analyze all signal measurements simultaneously to find the hidden
common factors that drive all measurements to vary together, but not as a
result of the true data measurements. We use common factors to reduce the
variations in the data without changing the base mean level of the data to
avoid altering the physical meaning.Comment: 12 pages, 10 figures, 1 tabl
Validity and reliability of the Amharic version of the Schwartz Center Compassionate Care Scale
Background
Compassionate care is the sensitivity shown by health care providers to understand another person’s suffering and a willingness to help and to promote the well being of that person. Although monitoring of compassionate care is key to ensuring patient-centered care, there is no validated tool in the Ethiopian context that can be applied to measure compassionate care. Therefore, this study aimed to assess the structural validity and reliability of the 12-item Schwartz Center Compassionate Care Scale® (SCCCS) in the Ethiopian context.
Methods
The structural validity and reliability of the 12-item Schwartz Center Compassionate Care Scale® were investigated in a sample of 423 oncology patients in the adult Oncology department of Tikur Anbessa Specialized Hospital in Addis Ababa, Ethiopia. The internal consistency of the instrument was examined based on Cronbach’s alpha coefficient, and the structural validity was evaluated by subjecting the items of the instrument to factor analysis. Statistical analysis was made using SPSS version 23.0.
Results
We have found that the Schwartz Center Compassionate Care scale is a two-factor structure (recognizing suffering and acting to relieve suffering). The scale has high overall scale reliability, which was 0.88, and subscale reliability of 0.84 for both recognizing suffering and acting to relieve suffering factors.
Conclusions
The Schwartz Center Compassionate Care Scale has high internal consistency and acceptable structural validity value. The tool can be used to measure compassionate care practice in the Ethiopian context.publishedVersio
Perceived characteristics of the environment associated with active travel: development and testing of a new scale
Background
Environmental characteristics may be associated with patterns of physical activity. However, the development of instruments to measure perceived characteristics of the local environment is still at a comparatively early stage, and published instruments are not necessarily suitable for application in all settings. We therefore developed and established the test-retest reliability of a new scale for use in a study of the correlates of active travel and overall physical activity in deprived urban neighbourhoods in Glasgow, Scotland.
Methods
We developed and piloted a 14-item scale based on seven constructs identified from the literature (aesthetics, green space, access to amenities, convenience of routes, traffic, road safety and personal safety). We administered the scale to all participants in a random postal survey (n = 1322) and readministered the scale to a subset of original respondents (n = 125) six months later. We used principal components analysis and Varimax rotation to identify three principal components (factors) and derived summary scores for subscales based on these factors. We examined the internal consistency of these subscales using Cronbach's alpha and examined the test-retest reliability of the individual items, the subscale summary scores and an overall summary neighbourhood score using a combination of correlation coefficients and Cohen's kappa with and without weighting.
Results
Public transport and proximity to shops were the items most likely to be rated positively, whereas traffic volume, traffic noise and road safety for cyclists were most likely to be rated negatively. Three principal components – 'safe and pleasant surroundings', 'low traffic' and 'convenience for walking' – together explained 45% of the total variance. The test-retest reliability of individual items was comparable with that of items in other published scales (intraclass correlation coefficients (ICCs) 0.34–0.70; weighted Cohen's kappa 0.24–0.59). The overall summary neighbourhood score had acceptable internal consistency (Cronbach's alpha 0.72) and test-retest reliability (ICC 0.73).
Conclusion
This new scale contributes to the development of a growing set of tools for investigating the role of perceived environmental characteristics in explaining or mediating patterns of active travel and physical activity
Relationship between accounting benefits and ERP user satisfaction in the context of the fourth industrial revolution
The importance of corporate social responsibility is shaping investment decisions and entrepreneurial actions in diverse perspectives. The rapid growth of SMEs has tremendous impacts on the environment. Nonetheless, the economic emergence plan of Cameroon has prompted government support of SMEs through diverse projects. This saw economic growth increased to 3.8% and unemployment dropped to 4.3% caused by the expansion of private sector investments. The dilemma that necessitated this study is the response strategy of SMEs operators towards environmental sustainability. This study, thus seeks to examine the effects of entrepreneurial intentions and actions on environmental sustainability. The research is a conclusive case study design supported by the philosophical underpins of objectivism ontology and positivism epistemology. Data was sourced from four hundred (400) SMEs operators purposively sampled from the Centre and Littoral regions of Cameroon using structured questionnaire. Data was analysed using the Structural Equation Modelling technique with the aid of statistical packages including: SPSS 24 and AMOS 23. The study revealed that entrepreneurial action has weak positive statistical significant impacts on environmental sustainability; whereas entrepreneurial intention has strong positive statistical significant effects on environmental sustainability. Entrepreneurial intention comprised of self-efficacy and perceived control whereas, entrepreneurial actions involved entrepreneurial alertness and uncertainty. This study concludes that entrepreneurs in Cameroon have sustainable intentions to protect the environment but; the current actions taken are inadequate. This research recommends that entrepreneurs should enhance efforts toward attaining the state of genuine sustainabilit
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