• 영재교육연구
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• 제20권1호
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• pp.61-77
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• 2010

본 연구는 영재선발도구로서 지필 검사 문항의 적합성에 대한 검토를 위해 과학영재교육원 중학교 물리 전공 학생 선발에 지난 3년간 사용된 문항들을 대상으로 문항 분석을 하여, 새로운 전형방식에 주는 교훈을 얻기 위하여 실시되었다. 분석결과, 객관형 문항의 평균 문항 난이도와 변별도는 대체로 양호한 편이었으나, 교과 및 내용별로 차이가 많은 것으로 나타났다. 서술형 문항이 객관형 문항에 비해 어렵게 출제되었으며, 변별력이 높았던 것으로 분석되었다. 특정 문항들과 총점과의 상관관계에서 객관형 문항의 경우는 수학과 물리, 화학 문항들과, 과학영재성 및 창의성 문항들에서 가장 높은 상관이 나왔으며, 서술형 문항이 객관형 문항보다 총점과 의 상관이 더 높은 것으로 분석되었다. 선발 시험에 응시한 학생들 가운데서 다른 영재교육기관에서 영재교육을 받은 학생과 그렇지 않은 학생들의 차이를 t 검증으로 분석한 결과, 영재교육을 받은 적이 있는 학생들의 총점 평균이 유의미하게 높은 것으로 나타났다. 그러나 서술형 문항에서는 두 집단 간에 유의미한 차이가 없었다.

• 한국전문물리치료학회지
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• 제20권3호
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• pp.89-99
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• 2013

The purposes of this study were: 1) to show the item difficulty hierarchy of walking/moving construct of the International Classification of Functioning, Disability and Health-Activity Measure (ICF-AM), 2) to evaluate the item-level psychometrics for model fit, 3) to describe the relevant physical activity defined by level of activity intensity expressed as Metabolic Equivalent of Tasks (MET), and 4) to explore what extent the empirical activity hierarchy of the ICF-AM is linked to the conceptual model based on the level of energy expenditure described as MET. One hundred and eight participants with lower extremity impairments were examined for the present study. A newly created activity measure, the ICF-AM using an item response theory (IRT) model and computer adaptive testing (CAT) method, has a construct on walking/moving construct. Based on the ICF category of walking and moving, the instrument comprised items corresponding to: walking short distances, walking long distances, walking on different surfaces, walking around objects, climbing, and running. The item difficulty hierarchy was created using Winstep software for 20 items. The Rasch analyses (1-parameter IRT model) were performed on participants with lower extremity injuries who completed the paper and pencil version of walking/moving construct of the ICF-AM. The classification of physical activity can also be performed by the use of METs that is often preferred to determine the level of physical activity. The empirical item hierarchy of walking, climbing, running activities of the ICF-AM instrument was similar to the conceptual activity hierarchy based on the METs. The empirically derived item difficulty hierarchy of the ICF-AM may be useful in developing MET-based activity measure questionnaires. In addition to convenience of applying items to questionnaires, implications of the finding could lead to the use of CAT method without sacrificing the objectivity of physiologic measures.

• 재활치료과학
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• 제11권3호
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• pp.65-80
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• 2022

목적 : 본 연구는 라쉬 분석을 이용하여 12개 항목의 스트레스 대처 척도의 항목 심리측정 속성을 조사하고자 하였다. 연구방법 : 본 연구는 ICPSR(Inter-university Consortium for Political and Social Research)에서 제공하는 공공 자료를 활용하여 로스엔젤레스에 거주하는 노인 480명을 대상으로 조사하였다. 주성분 분석을 사용하여 척도의 일반적 요인을 조사하였다, 라쉬 분석의 내·외적합 지수의 제곱평균(Mean Square)과 표준값(ZSTD)를 통해 항목 적합도를 알아보고, 척도의 신뢰도와 쉬운 항목과 어려운 항목을 식별하기 위해 항목-난이도 계층을 조사하였다. 마지막으로 성별과 연령 그룹에 대해 차등 항목 기능을 조사하였다, 결과 : 주성분 분석을 통해 스트레스 태처 척도의 12개 항목이 하나의 요인으로 구성되었음을 가정하였다. 라쉬 분석을 통하여 항목 2번이 부적합한 결과로 제거되었다(내적합 제곱평균=1.33, 내적합 표준값=5.05, 외적합 제곱평균=1.56, 외적합 표준값=7.15). 항목 2번을 제외한 11개 항목의 평가자 층(Person Strata)은 3.10으로 신뢰도 지수 0.81에 해당하는 값을 보였다. 차등 항목 기능을 조사한 결과 성별과 연령 그룹에 대한 차등 항목 기능은 없었다. 결론 : 라쉬 분석을 통해 개정된 COPE-11은 항목 간 심리측정 속성이 적절하여 측정 시 시간 단축과 정확한 측정이 가능할 것으로 사료된다.

• 한국생활과학회지
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• 제16권1호
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• pp.159-171
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• 2007

The purpose of this research is to analyze the difference of Structural Equation Model which shows the path between BRQ and its performance variables according to purchase product types-fashion brand types, clothing item groups. The subjects were women in their 20s to 40s living in Seoul and Metropolitan areas, and 482 copies of questionnaire were analyzed. Multi-Group Analysis of AMOS 5.0 Package was used to investigate structural equation model according to fashion brand types and clothing item groups. The results of this study were as follows. As for fashion brand types, there appeared to be significant differences between high price brand type and medium-low price brand type for three paths, namely brand satisfaction to brand loyalty, BRQ to brand attitude, and brand attitude to brand loyalty. However the verification of structural equation model according to clothing item groups showed no significant differences between formal wear and informal wear. Consequently, BRQ was proved to affect brand satisfaction and brand loyalty, and brand satisfaction was the important intermediate variable between BRQ and brand loyalty. As consumers were likely to show the difference of structural equation model according to the price of purchase goods, differencial marketing strategy would be suggested.

• 한국전문물리치료학회지
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• 제22권3호
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• pp.61-70
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• 2015

To develop an effective and efficient measurement system for tracking changes of functional status across two measures, it is essential to integrate information and communicate scores across two measures. The lack of communication between two measures leads to score incompatibility. A potential solution would be the development of a crosswalk table between those measures. Prior to creating a crosswalk table, selecting common items between two measures is critical. By using the Oswestry low back pain disability questionnaire (Oswestry) and a short form measuring disability resulting from low back pain, item level statistics as well as differential item functioning (DIF) using the Rasch measurement were investigated. Eighty-two participants with known group validity were recruited. Based on the application of the Rasch measurement model, item difficulties across the two measures were logically and hierarchically ordered. Ceiling effects for both measures were detected, which were not be able to be effectively measured with the two measures. The DIF analysis across the two measures confirmed that five paired items were found to have DIF and five common items were selected for common items. Although five paired items function differently across the Oswestry and the short form, all items of both measures were well targeted study participants. The common items selected by the Rasch measurement model may be effective when creating a crosswalk table between the Oswestry and the short form.

• 농촌계획
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• 제21권4호
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• pp.103-113
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• 2015

This study has been done to have a good grasp at the importance among the constituent elements of the rural healing tourism for working out the rural healing tourism planning. The above constituent elements were produced from the survey targeting the rural area-visiting visitors. For this study, 350 questionnaires were distributed to them and 306 out of them, valid, were collected. For the analysis of correlation among each item in the questionnaires, T-test, ANOVA were carried out. The results of the analysis of the questionnaires show that the consumers of the rural healing tourism have interest in the rural healing tourism regardless of their gender. The results also show that the consumers lay stress on the aspect of the infrastructure(H/W) more than contents-based aspect of the healing tourism(S/W). While especially, regarding healing tourism facilities or infrastructure, this study shows that there is significant difference in every item except gender item, regarding the contents and purpose of the rural healing tourism there is a significant difference among groups only in the item of age.

• 한국전문물리치료학회지
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• 제17권2호
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• pp.51-59
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• 2010

The Functional Independence Measure (FIM) is widely used to determine the dependency of activity of daily living in rehabilitation patients. The purposes of this study were to evaluate the unidimentionality of the FIM physical items and to analyze the validity of cross-functional levels in stroke survivors in Korea. Thirteen physical items of FIM were rated according to an ordinal scale of a 7-level classification. Two hundred and seventy-nine patients participated in the study (age range 18~92 years and 57% male). Six items-eating, bladder control, bowel control, transfer to and from the bed/wheelchair, transfer to and from the toilet, and bathing-showed misfits with the Rasch model. The most difficult item was 'bathing', the easiest item was 'bowel control'. Although there were several differences within functional levels, the hierarchical order of item measures was rather similar. 'Bathing' was the most difficult in high level patients (above 60), however 'stairs' was most difficult in the middle level (41~60) group. In the low level group (below 40), 'toileting' was the most difficult. In conclusion, the present study has shown several differences of item difficulty among functional levels. This result will be useful in planning interventions, and developing rehabilitation programs for stroke survivors.

• 대한간호학회지
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• 제22권3호
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• pp.316-324
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• 1992

The purpose of this study was to develop a ratio scale to measure job satisfaction of nurses and health workers in health centers. Of the 224 health centers in Korea, 105 were drawn as the sample using disproportion리 stratified random sampling. The data collection period was from May 1 to June 30, 1990 and 771 nurses and health workers working at 75 health centers participated. Subjects were instructed to rate, according to the level of satisfaction, from one to four points, 42 items revised from the tool made by Stamps et. al. (1978). The internal consistency reliability of the tool was measured by Cronbach $\alpha$ and the corrected item-total correlation coefficient. As a result of the item analysis, one item was excluded since the item had negative correlation with total items. As a result of factor analysis on the 41 items with varimax or above. Labeling and numbering of 6 factors were as follows ; factor 1 (8 items) ; Professional status of job. factor 2 (6 items) ; Interaction. factor 3 (8 items) ; Autonomy. factor 4 (8 items) ; Administration. factor 5 (7 items) ; Pay. factor 6 (4 items) ; Job(Task). Further studies are needed to identify the relationship between this tool and the effectiveness of the health center and more research is needed for generalization.

• 여성건강간호학회지
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• 제30권2호
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• pp.107-116
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• 2024

Purpose: This study was conducted to develop a cultural competence scale for nurses regarding the lesbian, gay, bisexual, and transgender (LGBT) community and to test its validity and reliability. Methods: The study adhered to the 8-step process outlined by DeVellis, with an initial set of 25 items derived through a literature review and individual interviews. Following an expert validity assessment, 24 items were validated. Subsequently, a preliminary survey was conducted among 23 nurses with experience caring for LGBT patients. Data were then collected from a final sample of 322 nurses using the 24 items. Item analysis, item-total score correlation, examination of construct and convergent validity, and reliability testing were performed. Results: The item-level content validity index exceeded .80, and the explanatory power of the construct validity was 63.63%. The factor loadings varied between 0.57 and 0.80. The scale comprised five factors: cultural skills, with seven items; cultural awareness, with five items; cultural encounters, with three items; cultural pursuit, with three items; and cultural knowledge, with three items; totaling 21 items. Convergent validity demonstrated a high correlation, affirming the scale's validity. Internal consistency analysis yielded an overall reliability coefficient of 0.97, signifying very high reliability. Each item is scored from 1 to 6 (total score range, 21-126), with higher scores reflecting greater cultural competence in LGBT care. Conclusion: This scale facilitates the measurement of LGBT cultural competence among nurses. Therefore, its use should provide foundational data to support LGBT-focused nursing education programs.

• 영어어문교육
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• 제18권1호
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• pp.171-195
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• 2012

While noticing that there is insufficient interest in the assessment of EFL learners' vocabulary levels or sizes, the researchers developed two tests identical in form (Forms A and B) to assess the lexical knowledge of Korean university learners at the $1^{st}{\sim}10^{th}$ 1,000 word bands by adapting a pre-established vocabulary levels test (VLT). Of equal concern was to investigate if the VLT was equally a valid and reliable instrument to be used on measuring the lexical knowledge of EFL learners. The participants were 804 university freshmen enrolled in a General Education English Course from four different colleges. The learners were asked to respond to either Form A or B. While scores generally fell towards the lower frequency bands, multiple regression found the Korean College Scholastic Ability Test (CSAT) to be a significant variable for predicting the learners' vocabulary sizes. From a methodological perspective, however, noticeable differences between Forms A and B could be found with item response theory analysis. The findings of the study provide suggestions on how future VLT for testing EFL learners may have to be redesigned.