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1.
Abstract

The development of the Children's Attitudes Toward the Environment Scale-Preschool Version (CATES-PV) is reported. The scale was administered to 42 preschool children. Their parents (34 mothers, 30 fathers) completed 2 environmental attitude scales, an environmental knowledge scale, and a questionnaire concerning environmentally related home practices. The scale has acceptable reliability, with a Cronbach's alpha of .68. Construct validity of the scale was suggested by the pattern of relationships found between child and parent measures. Specifically, children's attitudes were not correlated with verbal ability, but with the degree to which children participated in environmentally relevant activities in the home. The implications of those results for preschool curricula and practices are discussed.  相似文献   

2.
This article uses definitions provided by Cronbach in his seminal paper for coefficient α to show the concepts of reliability, dimensionality, and internal consistency are distinct but interrelated. The article begins with a critique of the definition of reliability and then explores mathematical properties of Cronbach's α. Internal consistency and dimensionality are then discussed as defined by Cronbach. Next, functional relationships are given that relate reliability, internal consistency, and dimensionality. The article ends with a demonstration of the utility of these concepts as defined. It is recommended that reliability, internal consistency, and dimensionality each be quantified with separate indices, but that their interrelatedness be recognized. High levels of unidimensionality and internal consistency are not necessary for reliability as measured by α nor, more importantly, for interpretability of test scores.  相似文献   

3.
ABSTRACT

The authors aimed to propose a valid and reliable diagnostic instrument by developing a three-tier test on simple electric circuits. Based on findings from the interviews, open-ended questions, and the related literature, the test was developed and administered to 124 high school students. In addition to some qualitative techniques for establishing the validity, some quantitative techniques were also used. Consequently, Cronbach's alpha reliability coefficient was estimated for the test as .69, and results revealed that the test scores could be a valid and reliable measure of students’ qualitative understanding of simple electric circuits.  相似文献   

4.
Results are reported from 2 common measures of medical student attitudes toward older adults: Maxwell-Sullivan Attitude Survey (MSAS); and UCLA Geriatrics Attitude Survey (GAS), with students entering the University of South Carolina School of Medicine (USCSM) in the period 2000–2005. A reliability analysis incorporating item means, Cronbach's alpha, item correlation matrix, and, Spearman-Brown prediction for positively and negatively worded items was conducted. Internal consistency results were unacceptable, revealing reliability and validity problems in this sample of medical students. Reconsideration of the use of these common measures, and a reframing of attitudes of medical students toward older adults seem appropriate.  相似文献   

5.
Current cognitive screening tests are difficult to use due to their deficit in cultural and conceptual significance and translation into other languages. The purpose of this study was to translate the Loewenstein Occupational Therapy Cognitive Assessment for Geriatrics (LOTCA-G) into Malay language and test its reliability and validity for assessing cognitive deficit among institutional elderly who undergo occupational therapy. The study was based on a single group test–retest design of 52 selected subjects (among the elderly). Cronbach's alpha values were used to examine the reliability of the instrument. Convergent validity was also assessed by comparing the adapted Malay version to the original English version for any inconsistencies and abnormality in interpretation. This study concluded that the Malay version of the Loewenstein Occupational Therapy Cognitive Assessment for Geriatrics is reliable as the overall Cronbach's alpha value was more than .90. This study also indicated that both the adapted Malay version and the original English versions of the instruments were consistent in their performance in cognitive components. The findings pointed out that the Malay version of the Loewenstein Occupational Therapy Cognitive Assessment for Geriatrics is appropriate and reliable in identifying deficits in cognitive components in relation to occupational performance for the Malaysian elderly population.  相似文献   

6.
In view of the lack of instruments for measuring biology teachers' pedagogical content knowledge (PCK), this article reports on a study about the development of PCK items for measuring teachers' knowledge of pupils' errors and ways for dealing with them. This study investigated 9th and 10th grade German pupils' (n?=?461) drawings in an achievement test about the knee-jerk in biology, which were analysed by using the inductive qualitative analysis of their content. The empirical data were used for the development of the items in the PCK test. The validation of the items was determined with think-aloud interviews of German secondary school teachers (n?=?5). If the item was determined, the reliability was tested by the results of German secondary school biology teachers (n?=?65) who took the PCK test. The results indicated that these items are satisfactorily reliable (Cronbach's alpha values ranged from 0.60 to 0.65). We suggest a larger sample size and American biology teachers be used in our further studies. The findings of this study about teachers' professional knowledge from the PCK test could provide new information about the influence of teachers' knowledge on their pupils' understanding of biology and their possible errors in learning biology.  相似文献   

7.
The author explores an assumption evident in the literature that “most” college instructors grade participation in undergraduate courses. Instructors (N = 521) at a large, northeastern university were surveyed regarding their attitudes and practices in grading participation in undergraduate courses. A survey instrument was developed for the purpose of this study and subjected to principal components analysis. This instrument yielded seven subscales of acceptable reliability (Cronbach's alpha ≥ .70), three of which are the focus of this article. Results suggest that the majority of instructors across disciplines do incorporate a “participation” factor into students’ final course grades. Course level is not a significant correlate, but some differences may be observed by discipline. Underlying instructor beliefs are examined, and implications and future directions for research are discussed.  相似文献   

8.
Many researchers use Cronbach's alpha to demonstrate internal consistency, even though it has been shown numerous times that Cronbach's alpha is not suitable for this. Because the intention of questionnaire and test constructers is to summarize the test by its overall sum score, we advocate summability, which we define as the proportion of total test variation that is explained by the sum score. This measure is closely related to Loevinger's H. The mathematical derivation of summability as a measure of explained variation is given for both scale and dichotomously scored items. Using computer simulations, we show that summability performs adequately and we apply it to an existing productive vocabulary test. An open‐source tool to easily calculate summability is provided online ( https://sites.google.com/view/summability ).  相似文献   

9.
This study investigated the factor structure and reliability of the Saint Louis Symptom Checklist (SLSCL) with an adolescent sample. An exploratory principal components factor analysis followed by a varimax rotation of 209 male and female adolescents yielded eight conceptually relevant factors. Cronbach's alphas for each of the scales ranged from .45 to .94, with a total scale alpha of .92. Directions for future research are discussed. © 2001 John Wiley & Sons, Inc.  相似文献   

10.
Abstract

This study proposes and verifies the concept of a technology disposition in teacher education, which is comprised of predisposition and competence. It examines the reliability and validity of a measure of the technology disposition of teacher education students, the Technology Disposition Scale for Teacher Education Students (TDS‐T). The TDS‐T is comprised of two subscales: technology predisposition and technology competence. In this study, the TDS‐T was completed by 656 teacher education students. Results showed the proposed disposition model of predisposition and competence had significant relationships with gender and class year. Male students had significantly higher overall technology disposition scores than did female students, but these differences were due to the male students' strong self‐concept, especially self‐confidence. Students technology competence level was significantly higher for seniors than for sophomores, and the overall technology disposition scores significantly increased from students' junior to senior years. The TDS‐T demonstrated content validity through factor analysis and convergent and discriminate validity through item analysis. The value for Cronbach's alpha was .93, indicating highly satisfactory reliability.  相似文献   

11.
This feminist critique of articles published about women in the Journal of Community College Research and Practice from 1990 to 2000 considers the extent to which they use feminist literature, frameworks, and methodology. The authors interrogate these articles' findings and the implications drawn from them asking whether they serve feminist goals of social change, women's emancipation, and institutional transformation. The critique examined 15 women-centered articles and 11 articles that treated gender as a variable. The analysis illustrated how the application of feminist tools of inquiry can generate further insights about women's participation in the community college and calls for the empowerment of women as participants and researchers through more extensive integration of women's studies in graduate programs.  相似文献   

12.
Abstract

Teacher dispositions are a central force in shaping the environment in which schooling takes place. State and national accrediting bodies have underscored this importance by including preservice teacher dispositions as an important component within the standards. Consequently, teacher certification programs must attend to this dimension; however, dispositions are neither easily identified nor easily assessed.

This study field tested an instrument used to identify and evaluate preservice teachers' dispositions. The implementation of the instrument was grounded in a commitment to have students reflect first on their own behavior, with faculty oversight in reviewing this self‐assessment. The instrument was evaluated in terms of its reliability using Cronbach's alpha. The process of using the instrument was analyzed through student and faculty feedback. The revised instrument is provided for use by other universities.  相似文献   

13.
The Remote Associates Test (RAT) developed by Mednick and Mednick (1967) is known as a valid measure of creative convergent thinking. We developed a 30-item version of the RAT in Dutch with high internal consistency (Cronbach's alpha = 0.85) and applied both Classical Test Theory and Item Response Theory (IRT) to provide measures of item difficulty and discriminability, construct validity, and reliability. IRT was further used to construct a shorter version of the RAT, which comprises of 22 items but still shows good reliability and validity—as revealed by its relation to Raven's Advanced Progressive Matrices test, another insight-problem test, and Guilford's Alternative Uses Test.  相似文献   

14.
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15.
There is considerable confusion in the media and the public about healthy behaviors in contrast to “antiaging” behaviors designed to make one look “younger.” As an aid in clarifying the differences between these two types of behaviors, we have developed a questionnaire called the Health Behavior Inventory (HBI). We also wanted to estimate differences in the frequency of different types of behaviors, differences between older and younger respondents, and differences between men and women.

The HBI consists of 10 Healthy Behaviors and 10 Age Denial behaviors. We tested the HBI in a mailed survey to 250 older persons. The questionnaire was returned by 222 persons. We used Cronbach's alpha to test for consistency reliability of the two scales. Healthy Behaviors were reported much more often than Age Denials, but 1/3 reported 1 or more Age Denials. Younger persons and women tended to report substantially more Age Denials than men. The scales appear to have good face validity, and the Age Denials scale has fairly consistent internal reliability. The HBI appears to be a useful tool for research on the frequency and distribution of Healthy Behaviors and Age Denials among different groups of older persons. It may also be used in educational settings and the media for raising awareness of the need for more Healthy Behaviors and for reducing useless and dangerous types of Age Denials.  相似文献   

16.
现存最早有关杨时著作的“原始目录”,见载于吕本中和胡安国的两篇《杨龟山先生行状》中。通过对此所录和所遗的考察,厘清杨时著作在宋代的流传、明清时期《龟山集》的刊刻与传播、杨时著作的存佚及其版本源流等基本史实,以此弥补学界在这一研究领域的短缺。  相似文献   

17.
This study aimed to develop and investigate the validity and reliability of the Mentor Teacher Role Inventory (MTRI). A total of 1843 student teachers in the Distance English Teacher Training Program participated in the study. The 58 items of the Mentor Teacher Role Inventory underwent principal factor analysis, which revealed nine factors relating to mentorship and explained 52.971% of the total variance. The KMO value of the MTRI was calculated as .968. The Cronbach's alpha was .951. These results indicated that a reliable and valid MTRI could be used for both the distance English teacher training programme and other distance teacher education programmes.  相似文献   

18.
《学校用计算机》2013,30(1-2):93-104
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19.
杨牧常常用“移情”的手法使边塞的山川大漠,一草一木皆着“我”之色彩。于是,在杨牧的新边塞诗中不仅有“客体的主体化”,而且有“主体的客体化”,主客体的交融又使边塞化作了诗人生命的对象化存在。因而,杨牧的新边塞诗也就成了诗人和山川万物心灵对话的物化存在。  相似文献   

20.
This commentary dialogues with three articles that analyze the same database about science and religion discourse produced 17 years ago. Dialogues in these three articles and this commentary across space and time allow us to develop new and different understandings of the same database and situation. As part of this commentary, I discuss topics approached in the three articles including the collective nature of discourses, emotion, and constructivist view on learning. I draw on three essential concepts of the dialogical nature of utterance, the emotional-volitional tone and internally persuasive discourse informed by Bakhtin’s dialogism. In particular, I conclude that Bakhtin’s dialogism not only invites us to understand science learning discourse in a more holistic way but also encourages us to open up dialogues between science and religion that often are considered to be two hostile opponents.  相似文献   

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