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1.
Nanobiotechnology, which resulted from the convergence of biotechnology and nanotechnology, is a new field of research, and it has an increasing impact on peoples’ everyday lives. Thus, it is important to measure peoples’ attitudes towards nanobiotechnology, in particular, those who are specifically involved in biology and science education. However, despite the existence of an adequate number of instruments on biotechnology or nanotechnology, for nanobiotechnology, there is no instrument that has been rigorously validated. Therefore, the aim of this study was to develop a nanobiotechnology scale for assessing the undergraduate students’ attitudes. The data were gathered from 236 student teachers enrolled in the departments of biology education and elementary science education. The findings from exploratory factor analysis (EFA) provided evidence for the validity and reliability of the final form of the scale. At total of 36 items were identified and contained within the following four factors, nanobiotechnology awareness, interest in nanobiotechnology, nanobiotechnology education, and the applications of nanobiotechnology. The total variance was 53.021%, and the Cronbach’s alpha for the overall scale was 0.93. The scale was later given to 203 student teachers, the results of which were presented in this study. The results indicated significant differences in gender and department in some of the subscales of the scale. As a result, it is believed that the instrument will be a valuable tool for both instructors and researchers in science education to assess the student teachers’ attitudes about nanobiotechnology.  相似文献   

2.
Recycling and its applications are growing significantly due to the great potential for solving a range of environmental problems in society. Nevertheless, there are currently very few instruments that can provide valid and reliable data on students’ attitudes toward recycling. In this regard, this article focuses on the development and validation of Recycling Attitude Scale (RAS). The items in the RAS were developed initially from the responses to three open-ended items by 53 tenth and eleventh grade students and literature review on recycling attitude. This initial form was pilot tested with 356 tenth and eleventh grade students and then subjected to exploratory factor analysis. Subsequently, the revised version of the scale was administrated to 694 tenth grade students, and the results were subjected to confirmatory factor analysis and reliability analysis. The RAS consists of 21 items in three subscales, with responses recorded on a four-point Likert scale, options ranging from strongly agree to strongly disagree. Cronbach’s alpha reliability coefficient (α) of the scale was found to be .87. The results indicate that the RAS a potentially valuable tool for both instructors and researchers in Turkey for the assessment of the attitudes toward recycling held by students in secondary education.  相似文献   

3.
This paper presents the development and initial validation of a feedback scale which measures the thoughts and affective reactions of prospective teachers concerning feedback on their teaching experiences. To reach this goal, data from 512 prospective teachers were used to test the internal consistency, exploratory and confirmative factor structure. While exploratory factor analysis was conducted on a random split-half sample of the data to examine the factor structure of the feedback scale items, confirmative factor analysis was conducted in the holdout sample. As a result of these analyses, it has been determined that the scale showed good validity and it has a structure composed of two factors; professional development and anxiety. Also, the reliability of these sub-factors of scale scores was found to be highly reliable. Overall, results suggest that this scale is a valid measurement that should reveal the viewpoints of prospective teachers regarding feedback in the form of observable behaviours for future research.  相似文献   

4.
A self-report scale that measures teachers’ confidence in teaching students about twenty-first century skills was developed and validated with pre-service and in-service teachers. First, 16 items were created to measure teaching confidence in six areas: information literacy, collaboration, communication, innovation and creativity, problem solving, and responsible citizenship. Then, the items were tested in two groups of pre-service teachers and two groups of in-service teachers respectively. Exploratory factor analyses and confirmatory factor analyses were conducted to examine the scale’s validity and reliability. The analyses identified a three-construct scale including innovation and problem solving, collaboration, and utility of technology for pre-service teachers and a one-dimension scale, cross-functional skills, for in-service teachers. This study suggests that different scales should be used to measure in-service teachers’ and pre-service teachers’ confidence in teaching twenty-first century skills.  相似文献   

5.
Background: Determining individuals’ views of the nature of science is quite important for researchers since it is both a component of scientific literacy and a fundamental aim of science education.

Purpose: This study aims to develop a NOSvs for assessing prospective teachers’ views of the nature of science and to analyse their psychometric properties.

Sample: A total of 565 prospective teachers participated in the study.

Design and methods: The Kaiser–Meyer–Olkin (KMO) Index and Bartlett’s Sphericity Test were used in this study. Confirmatory factor analysis (CFA) was performed to determine the construct validity of the scale. Cronbach’s Alpha (α) coefficient was calculated for the reliability of the study.

Results: It was consequently found that the KMO was larger than .50. That Bartlett’s Sphericity Test was also statistically significant. The items with item-total correlations smaller than .30 were removed from the scale. Cronbach’s α values calculated for each sub-scale were above .70. In consequence of the first CFA performed, fit indices were found to be below the expected level. For this reason, three more items with the least item-total correlations were removed from the scale. Following the CFA, the final form of the scale included 36 items and five sub-scales.  相似文献   


6.
Research aimed at developing and validating an instrument to assess secondary school students’ perceptions of assessment tasks was conducted. Following a review of literature, a five‐scale instrument of 40 items was trialled with a sample of 658 science students in 11 English secondary schools. Based on internal consistency reliability data and exploratory factor analysis, refinement decisions resulted in a five‐scale instrument called the Perceptions of assessment tasks inventory (PATI). The scales of the PATI are Congruence with planned learning, Authenticity, Student consultation, Transparency and Diversity.  相似文献   

7.
An instrument was developed to assess the perceived learner–teacher transactional distance in the context of the Hellenic Open University and to provide psychometric evidence of reliability and validity of the interpretation of the scores derived from the scale. First, an elicitation study gathered information on students’ beliefs and feelings about their teachers’ behavior. Two dimensions of learner–teacher transactional distance, namely, co-understanding and awareness, were revealed. Then, an item pool was developed and the preliminary questionnaires (one for each dimension) were field tested on 60 postgraduate students who commented on their clarity. Reliability and validity were then tested using exploratory and confirmatory factor analysis with two samples of 220 and 201 postgraduate students. The confirmatory factor analysis results indicated good model fit for the dimensions of co-understanding and awareness. Univariate F tests showed no significant difference between males and females for (a) co-understanding of cognitive skills and aptitudes, (b) co-understanding of emotional state, (c) awareness of cognitive skills and aptitudes, and (d) awareness of emotional state. A final questionnaire included ten items for the co-understanding dimension and fifteen items for the awareness dimension.  相似文献   

8.
The purpose of the study was to investigate the use of an existing instrument, the Constructivist Learning Environment Survey (CLES)(Taylor, Dawson & Fraser, 1995; Taylor, Fraser & Fisher, 1993, 1997), for providing insights into the classroom learning environments of beginning science teachers. In the first year of the study, the CLES was used with 290 upper elementary, middle, and high school science teachers and preservice teachers. As part of a larger study of the classroom environments and teaching practices of beginning science teachers, data also were gathered through classroom observations of and interviews with some of the participating teachers. Exploratory factor analysis and internal consistency reliability analysis, as well as examination of each item and of participants' questions and comments about them, led to a shortened, revised version of the CLES, named the CLES 2(20). The five original scales were retained, but the number of items in each scale was reduced from six to four. The single negatively worded item was eliminated. Some of the original items were rephrased. The revised CLES was then used in the second, third and fourth years of the study. Examples of feedback based on CLES data is provided to researchers to assist them in writing teacher profiles.  相似文献   

9.
This research centers on the psychometric examination of the structure of an instrument, known as the 5E Lesson Plan (5E ILPv2) rubric for inquiry-based teaching. The instrument is intended to measure an individual’s skill in developing written 5E lesson plans for inquiry teaching. In stage one of the instrument’s development, an exploratory factor analysis on a fifteen-item 5E ILP instrument revealed only three factor loadings instead of the expected five factors, which led to its subsequent revision. Modifications in the original instrument led to a revised 5E ILPv2 instrument comprised of twenty-one items. This instrument, like its precursor, has a scoring scale that ranges from zero to four points per item. Content validity of the 5E ILPv2 was determined through the expertise of a panel of science educators. Over the course of five semesters, three elementary science methods instructors in three different universities collected post lesson plan data from 224 pre-service teachers enrolled in their courses. Each instructor scored their students’ post 5E inquiry lesson plans using the 5E ILPv2 instrument recording a score for each item on the instrument. A factor analysis with maximum likelihood extraction and promax oblique rotation provided evidence of construct validity for five factors and explained 85.5 % of the variability in the total instrument. All items loaded with their theoretical factors exhibiting high ordinal alpha reliability estimates of .94, .99, .96, .97, and .95 for the engage, explore, explain, elaborate, and evaluate subscales respectively. The total instrument reliability estimate was 0.98 indicating strong evidence of total scale reliability.  相似文献   

10.
研究者通过访谈调查,编制出80个题目,在737名大学生中进行初测,通过项目鉴别度分析和探索性因素分析,保留了24个题目。24个题目包括安全体质、安全心理、安全技能和安全意识等四个因子,内部一致性系数均大于0.73。在571名大学生中进行了复测,该量表的内部一致性系数为0.88;从复测的大学生中随机抽取51人进行重测,重测信度在0.66~0.85之间。验证性因素分析验证了量表与构想模型拟合较好,具有很好的结构效度。最后,研究者进行了大学生公共安全素质量表的结构分析、信度和效度分析,并讨论了存在的问题。  相似文献   

11.
This study investigates the development of an instrument to explore the views of student teachers in Turkey towards using Facebook as a tool for teaching and learning. A five-point Likert-type scale was developed for a sample of 687 student teachers from various fields in Adiyaman, Mustafa Kemal, and Inonu Universities. The sample included 445 participants in the first application and 242 participants in the second. A literature review, students’ comments, and relevant Facebook research results were considered in order to establish the items for the scale. A comparative analysis of previous studies and instruments yielded an original 33-item pool, and experts’ judgments were consulted to confirm the content validity of the scale. Exploratory and confirmatory factor analyses were conducted to determine the factor structure of the scale, revealing 17 items that could be grouped under three general factors. A Cronbach’s coefficient (α) was employed to determine the internal consistency coefficients for the whole scale and its subscales. Results indicate that this learning scale (FLTS) is a valid and reliable instrument to investigate the use of Facebook as a learning tool.  相似文献   

12.
ABSTRACT

Spiritual health is one of the most important aspects of the elders’ health. The aim of this study was to develop and evaluate psychometric properties of a scale for evaluating spiritual health of older adults in Iran. This is a mixed research, consisted of two phases. First, the perception of elder people regarding the spiritual health was explored, using directed content analysis, and the scale items generated based on the results. Second, the content, face and construct validity were determined. Exploratory factor analysis was used for the construct validity. To determine the reliability, Cronbach’s alpha and test-retest were used. Preliminary designed questionnaire included 94 items, which were reduced to 38 following the content and face validity processes. Exploratory factor analysis demonstrated that 20 items loaded on five factors determined about 66% of variance. The total internal consistency of the scale was 0.89. Results of test-retest indicated a Pearson correlation coefficient of 0.85 while intra-class correlation coefficient of scale was 0.92. The ESHS is a short, user-friendly valid and reliable tool which can be used for assessing the spiritual health of older adults.  相似文献   

13.
We re-conceptualized the meaning of scientific literacy and developed an instrument, which we call the Global Scientific Literacy Questionnaire (GSLQ) based on a new conceptual framework for scientific literacy in the twenty-first century. We identified five dimensions, each with key elements. The five dimensions are (1) content knowledge (core ideas of science), (2) habits of mind (science practices), (3) character and values, (4) science as human endeavor, and (5) metacognition and self-direction. In this study, we attempted to diagnose the extent to which South Korean secondary students perceive themselves as global citizens having such capabilities using GSLQ with 3,202 students (7th–12th grades). Validity and reliability were examined using various statistical techniques including the Cronbach's α coefficient, exploratory factor analysis, and confirmatory factor analysis. The use and value of the instrument were discussed by examining the Korean secondary students’ overall scientific literacy as well as their views on each dimension across gender and grade levels. We recommend that teachers and researchers use the GSLQ to assess students’ global scientific literacy and provide comments on its usefulness as a research tool and the practical use of its inventory of items.  相似文献   

14.
The purpose of this study was to develop a Meta‐Affective Trait Scale (MATS) to measure the meta‐affective inclinations related to emotions that students have while they are studying for their classes. First, a pilot study was performed with 380 10th‐grade students. Results of the exploratory factor analysis supported a two‐factor structure of the MATS, with 17 items and two dimensions (affective awareness and affective regulation). Second, in the validation study, the confirmatory factor analysis was carried out using data from 359 11th‐grade students. Satisfactory fit indices were obtained, providing evidence for the reliability and validity of the scale. Finally, for further evidence, a correlational analysis was run. Results indicated positive and significant correlations between learning strategies and self‐efficacy and the dimensions of the MATS. Consequently, the MATS can be employed by both researchers and teachers to assess students’ meta‐affective inclinations.  相似文献   

15.
In this paper, we describe the Scientific Habits of Mind Survey (SHOMS) developed to explore public, science teachers’, and scientists’ understanding of habits of mind (HoM). The instrument contained 59 items, and captures the seven SHOM identified by Gauld. The SHOM was validated by administration to two cohorts of pre-service science teachers: primary science teachers with little science background or interest (n?=?145), and secondary school science teachers (who also were science graduates) with stronger science knowledge (n?=?145). Face validity was confirmed by the use of a panel of experts and a pilot study employing participants similar in demographics to the intended sample. To confirm convergent and discriminant validity, confirmatory factor analysis and evaluation of the reliability were calculated. Statistical data and other data gathered from interviews suggest that the SHOMS will prove to be a useful tool for educators and researchers who wish to investigate HoM for a variety of participants.  相似文献   

16.
This study established a Chinese scale for measuring high school students’ ocean literacy. This included testing its reliability, validity, and differential item functioning (DIF) with the aim of compensating for the lack of DIF tests focusing on current scales. The construct validity and reliability were verified and tested by analyzing the established scale’s items using the Rasch model, and a gender DIF test was conducted to ensure the test results’ fairness when distinct groups were compared simultaneously. The results indicated that the scale established in this study is unidimensional and possesses favorable internal consistency and construct validity. The gender DIF test results indicated that several items were difficult for either female or male students to correctly answer; however, the experts and scholars discussed these items individually and suggested retaining them. The final Chinese version of the ocean literacy scale developed here comprises 48 items that can reflect high school students’ understanding of ocean literacy—which helps students understand the topics of marine science encountered in real life.  相似文献   

17.
This article reports the validity and use of a new form of the Constructivist Learning Environment Survey (CLES). As part of a larger study, a comparative student version (CLES-CS) was developed to evaluate the impact of an innovative teacher development program (based on the Integrated Science Learning Environment, ISLE, model) in school classrooms. Two separate response blocks for 30 items comprising five scales are presented in side-by-side columns to measure students’ perceptions on a five-point frequency response scale of the extent to which certain psychosocial factors are prevalent in the science class taught by a teacher who had attended the ISLE program (THIS), as well as their perceptions of other science and non-science classes taught by other teachers in the same school (OTHER). The five scales of the CLES are called Personal Relevance, Uncertainty of Science, Shared Control, Critical Voice, and Student Negotiation. Using data collected from 1079 students in 59 classes in north Texas, principal components factor analysis with varimax rotation and Kaiser normalization confirmed the a priori structure of the CLES-CS. The factor structure, internal consistency reliability, discriminant validity, and the ability to distinguish between different classes and groups were supported for the CLES-CS. Students whose science teachers had attended the ISLE program (THIS) perceived higher levels of Personal Relevance and Uncertainty of Science in their classrooms relative to the classrooms of other science and non-science teachers in the same schools (OTHER). Similar results were found when comparing the classroom environment perceptions of students whose science teachers had attended the ISLE program with the perceptions of students whose science teacher had attended alternative field trip programs (non-ISLE).  相似文献   

18.
In this study, a scale was constructed to aid college educators in developing interdisciplinary courses for smart living industry–related talent cultivation. The scale, named the Undergraduate Student Interdisciplinary Competences for the Smart Living Industry (USIC_SLI) scale, was developed on the basis of a literature review and a two-phase expert survey. A pilot test was performed, and exploratory and confirmatory factor analyses were conducted to understand the scale’s reliability and validity. The final version of the scale comprises five subscales (i.e. communication, reflection, practice, technology values, and entrepreneurship) and 25 items. The Cronbach’s α of the scale was 0.92, and that of the subscales ranged from 0.82 to 0.89. Structural equation modelling revealed that the theoretical model and observation data of the scale were compatible, and the results indicated that the scale had appropriate validity and reliability.  相似文献   

19.
This study aimed to develop the Metaconceptual Awareness and Regulation Scale (MARS) – a self-report instrument for measuring the extent to which students realise, monitor, and evaluate their ideas. MARS consists of 10 items scored on a six-point Likert scale for two factors: metaconceptual awareness and metaconceptual regulation. A pilot study was conducted with 349 10th grade students while 338 11th grade students participated in the validation study. In order to test the two-factor structure of MARS, confirmatory factor analysis was employed with data from the validation study. Findings supported the two-factor structure of the MARS instrument. For further validity evidence, the relationship between students’ metaconceptual awareness and regulation and their use of learning strategies were examined using canonical correlation analysis. A significant correlation was found between the factors of MARS and learning strategies. Research and practical applications of MARS by science education researchers and teachers are discussed.  相似文献   

20.
A 30-item questionnaire was designed to determine Omani science teachers’ attitudes toward teaching science and whether or not these attitudes differ according to gender and teaching experiences of teachers. The questionnaire items were divided into 3 domains: classroom preparation, managing hands-on science, and development appropriateness. The questionnaire was administered to 139 randomly selected science teachers who teach science in grades 5–10. The sample consisted of 72 male teachers and 67 female teachers, 57 teachers with teaching experience between 1 and 5 years and 82 teachers with teaching experience of 6 and more years. The sample was selected from 7 schools in 1 Educational Governorate in the Sultanate of Oman. The questionnaire reliability was calculated by an internal consistency method, using Cronbach’s alpha, which gave the value of 0.73 for all the items. The findings indicated that science teachers’ attitudes toward teaching science were positive. Furthermore, the results showed that there were statically significant differences in teachers’ attitudes due to gender in favor of the female teachers and in teaching experience in favor of teachers with long experience. The study proposed some recommendations to improve the science teachers’ attitude, especially male teachers towards science teaching. Paying more attention to in-service professional development programs, encouraging new teachers to attend some classes to observe experienced colleagues, and finally rewarding teachers morally, socially, and financially are some of these recommendations.  相似文献   

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