• 한국전문물리치료학회지
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• 제30권3호
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• pp.194-201
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• 2023

Background: Falls are a common and serious problem in the elderly population. Muscle strength and balance are important factors in the prevention of falls. The Y-balance test (YBT) is used to assess dynamic postural control and shows excellent test-retest reliability. However, no studies have examined the relationship between lower-limb strength and YBT scores in elderly women. Objects: This study aimed to examine the relationship between lower-limb strength and YBT scores in elderly women. Methods: Thirty community-dwelling elderly women participated in the study. Lower-limb strength including hip flexor, hip extensor, hip abductor (HAB), hip adductor (HAD), knee flexor, knee extensor, ankle dorsiflexor, and ankle plantar flexor (PF) muscles was examined using a smart KEMA strength sensor (KOREATECH Inc.), and the YBT was used to assess dynamic balance. Relationship between lower-limb strength and YBT was demonstrated using a Pearson's correlation coefficient. Results: HAB strength (r = 0.388, p < 0.05), HAD strength (r = 0.362, p < 0.05), and ankle PF strength (r = 0.391, p < 0.05) positively correlated with the YBT-anterior direction distance. Ankle PF strength was positively correlated with the YBT-posteromedial direction distance (r = 0.396, p < 0.05) and composite score (r = 0.376, p < 0.05). Conclusion: The results of this study suggest that HAB, HAD, and ankle PF strengths should be considered for dynamic postural control in elderly women.

• 재활복지공학회논문지
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• 제11권4호
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• pp.339-348
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• 2017

본 연구에서는 고령자의 신경인지 기능의 정량적이고 객관적인 평가를 위해 개발된 직관적 평가 기술이 접목된 전산화 종합 신경인지 검사 방법에 대한 타당도와 신뢰도를 검증하고자 한다. 피험자는 신체 건강한 60대 이상 고령자를 100명을 대상으로 실험을 진행하였다. 고령자의 종합적인 신경인지기능을 평가하기 위하여 (주)싸이버메딕에서 개발한 전산화 종합 인지기능검사(Computerized Neuro-cognitive Function Test: 이하 CNT, cybermedic. Co., Korea)를 사용하였다. 검사는 주의력 검사, 기억력 검사와 문제 해결력 검사로 구성하였다. CNT의 검사항목별 상관분석 결과, 주의력 검사와 기억력 검사에서 주의력이라는 단일영역을 측정하는 특성을 확인할 수 있었다. 문제해결력 검사에서도 측정 목적은 다르지만 문제해결을 위한 포괄적인 인지기능검사가 가능하고 높은 수준의 유의한 상관관계를 확인 할 수 있었다. 신뢰도 분석에서 검사-재검사에 대한 반분신뢰도 및 내적 일치도는 유의하게 높은 수준을 보였다. 위 연구 결과, 본 연구에서 구성한 종합 신경인지 검사 항목이 재연성과 유효성을 확보하였다고 판단된다.

• 한국콘텐츠학회논문지
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• 제9권12호
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• pp.923-931
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• 2009

본 연구는 이윤옥(2008)의 연구에서 추출한 7개요인 33문항으로 구성된 자기주도학습 지각도 검사도구를 중학생을 대상으로 모형 적합도를 확인하고자 한다. 전국의 남녀 중학생 1,202명을 대상으로 자기주도학습 지각도 검사를 실시한 후 모형의 적합도 검증을 위해 본 검사도구에 대한 확인적 요인분석을 하여 본 결과 모형의 적합도가 검증되었다(GFI=.913, CFI=,919, PMR=.048, TLI=.910). 또한 본 검사의 준거타당도 검증을 위해 서울, 경기, 충청지역 중학교 530명을 대상으로 본 검사와 수업이해도, 자율학습 효율성검사를 실시하였다. 그 결과 본 검사와 수업이해도(r=.67), 본 검사와 자율학습효율성간(r=.65)에도 정적 상관을 보여 준거타당도가 확인되었다. 또한 본 검사 도구의 전체문항 신뢰도는 .94이었으며, 검사-재검사신뢰도는 .91이었다. 본 검사도구의 활용과 제한점에 대하여 논의하였다.

• Asian Pacific Journal of Cancer Prevention
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• 제15권3호
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• pp.1227-1232
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• 2014

Background: Given that there are many Iranian women who have never had a Pap smear, this study was designed to develop and validate a measurement tool based on the Protection Motivation Theory to assess factors influencing the Iranian women's intention to perform first Pap testing. Materials and Methods: In this psychometric research, to determine the Content Validity Index (CVI) and the Content Validity Ratio (CVR), a panel of experts (n=10) reviewed scale items. Reliability was estimated through the Intraclass Correlation Coefficient (n=30) and internal consistency (n=240). Also, factor analysis (exploratory and conformity) was performed on the data of the sample women who had never had a Pap smear test (n=240). Results: A 26-item questionnaire was developed. The CVI and CVR scores of the scale were 0.89 and 0.90, respectively. Exploratory factor analysis loaded a 26-item with seven factors questionnaire (perceived vulnerability and severity, fear, response costs, response efficacy, self-efficacy, and protection motivation (or intention)) that jointly accounted for 72.76% of the observed variance. Confirmatory factor analysis indicated a good fit for the data. Internal consistency (range 0.70-0.93) and test-retest reliability (range 0.72-0.96) of sub-scales were acceptable. Conclusions: This study showed that the designed instrument was a valid and reliable tool for measuring the factors influencing the women's intention to perform their first Pap testing.

• 대한지역사회영양학회지
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• 제19권3호
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• pp.258-273
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• 2014

Objectives: The purposes of the study were to develop a questionnaire for dietary habit survey for Korean adults, and unify the terms related to dietary habits. Methods: The Delphi method by 43 professionals on dietary habit research was applied to unify the terms. Results: With regard to results on terms related to dietary habit, the respondents recorded the highest percentage (90.7%) of selecting the term "dietary habits" and also the highest percentage (76.7%) of choosing "dietary habits" for English. The biggest percentage of the respondents chose "individual dietary behaviors repeatedly formed and habitualized under the social, cultural, and psychological influence in the group" as the concept of dietary habits. The Delphi survey for the development of a questionnaire resulted in the first questionnaire of 31 items, the second one of 27 items, and the third one of 25 items. The validity of questionnaire items was tested with content validity ratios (CVR). The items whose CVR value was 0.29 or lower were eliminated or revised, because the minimum CVR value needed to test validity was 0.29. To test the reliability of questionnaire items, test-retest method was performed in 163 adults. According to the Kappa coefficient in the range of 0.314-0.716, all of the 25 items were in the reliability scope. A survey was taken with 702 adults to finally revise and supplement the third questionnaire whose validity and reliability were tested. Conclusions: Through those processes, a questionnaire for adults' dietary habit survey was finally completed. The significance of the study lies in the development of the first questionnaire on dietary habits equipped with both validity and reliability in South Korea.

• Journal of Korean Biological Nursing Science
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• 제20권1호
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• pp.11-19
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• 2018

Purpose: The purposes of this study were to perform items analysis using the classical test theory (CTT) and the item response theory (IRT), and to establish the validity and reliability of the Korean version of pressure ulcer prevention knowledge. Methods: The 26-item pressure ulcer prevention knowledge instrument was translated into Korean, and the item analysis of the 22 items having an adequate content validity index (CVI), was conducted. A total of 240 registered nurses in 2 university hospitals completed the questionnaire. Each item was analyzed applying CTT and IRT according to 2-parameter logistic model. Response alternatives quality, item difficulty and item discrimination were evaluated. For testing validity and reliability, Pearson correlation coefficient and Kuder Richardson-20 (KR-20) were used. Results: Scale CVI was .90 (Item-CVI range= .75-1.00). The total correct answer rate for this study population was relatively low as 52.5%. The quality of response alternatives was found to be relatively good (range= .02-.83). The item difficulty of the questions ranged form .10 to .86 according to CTT and -12.19 to 29.92 according to the IRT. This instrument had 12-low, 2-medium and 8-high item difficulty applying IRT. The values for the item discrimination ranged .04-.57 applying CTT and .00-1.47 applying IRT. And overall internal consistency (KR-20) was .62 and stability (test-retest) was .82. Conclusion: The instrument had relatively weak construct validity, item discrimination according to the IRT. Therefore, the cautious usage of a Korean version of this instrument would be recommended for discrimination because there are so many attractive response alternatives and low internal consistency.

• 가정과삶의질연구
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• 제32권6호
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• pp.139-154
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• 2014

This study aims to devise a tool which can identify the concept of 'consumption happiness' and to develop a standardized scale to measure consumption happiness. How can we measure consumption happiness? Based on it, the concept and perspective of consumption happiness was formed and then the scale for measuring it was developed. To develop the scale, questions were extracted through a literature survey, an FGI interview was conducted and validity was verified through experts' opinions. Then the scale was developed by conducting a questionnaire survey for consumers. For the analysis of the research, SPSS 20. 0 for Windows and AMOS 17.0 were used and 500 consumers responded to an online survey. In order to examine the general characteristics of the investigation object, the technical statistics of frequency, percentage, average and standard deviation were performed. To develop the research, test-retest correlation, item-to-total correlation, Cronbach's ${\alpha}$ reliability, exploratory factor analysis and confirmatory factor analysis were conducted. The final 20-item consumption happiness scale, which consisted of four factors, was constructed in the end.

• 한국의류학회지
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• 제25권3호
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• pp.560-568
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• 2001

The aim of the present study was to measure intra-individual consistency in clothing and fabric evaluation and to examine its relation to the ratings. A sample of 93 female and 97 male university students rated clothing of 4 styles of daytime wear and 2 fabrics on 15 pairs of polar adjectives twice in 7-days interval. Correlation coefficients between the two ratings for each subject, intra-individual consistency in the evaluation, ranged from -0.12 to 0.89 and mean coefficient was 0.63 of female and -0.01 to 0.78 and mean coefficient was 0.54 of male. Based on the coefficients, the subjects were classified into three groups: high, medium, and low intra-individual consistency. Analysis of variance of mean ratings by the three groups revealed that significant difference existed in 24% of female and 23% of male in 90 combinations of 6 clothing and 15 semantic differential scales. Female of subjects with high intra-individual consistency were most likely definite to evaluate clothing, whereas the ones with low were least. But male subjects were not definite. Mean correlation coefficients for style evaluation subscales of female was 0.39, but male was 0.44. Among the semantic differential scales, high stability in the two ratings was observed for the synthetic clothing evaluation. Correlation coefficients for each clothing obtained from the mean score of the subjects in each semantics differential scale were around 0.98, including that the mean scores of the subjects in each scale could yield excellent stability in clothing evaluation.

• 대한물리의학회지
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• 제9권1호
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• pp.25-33
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• 2014

PURPOSE: The purpose of this was to translate Patient-Rated Tennis Elbow Evaluation(PRTEE) into Korean and identify the reliability and validity of a Korean version of PRTEE. METHODS: The subjects of this study were 32 patients diagnosed with lateral epicondylitis. The subjects were surveyed using a Korean version of PRTEE three times: at the first visit, one week after, and two weeks after. This questionnaire consisted of 15 questions including 5 questions about pain and 10 questions about functions. Intraclass correlation coefficients were used to measure reliability and Cronbach's alpha coefficients were used to assess internal consistency. In addition, the validity of the survey results was examined by correlating a visual analogue scale with the outcome of holding without pain. RESULTS: Test-retest reliability of Korea version PRTEE was good total ICC= .962 (CI=.922-,982). Cronbach's alpha value for PRTEE was found to be .955 and it was statistically significant (p<.05). The positive correlation between PRTEE and VAS was moderate to high (r=.753, P=.00) and statistically significant. There was also a low significant negative correlation between PRTEE and PFG (r=-.362, P=.042). CONCLUSION: The Korean version of PRTEE had reliability and validity. Therefore, it is a useful measure to evaluate the conditions of patients with lateral epicondylitis.

• 대한한의진단학회지
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• 제9권1호
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• pp.125-130
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• 2005

Background and purpose: We evaluated the reliability of two electrodermal measurement devices on meridian skin areas; Electro Acupuncture according to Dr. Voll (EAV) method and newly developed MIR-1. Methods: Eighteen volunteers were tested repeatedly on the same condition with each device. To explore the intra-rater, inter-rater, and test-retest reliabilities, one rater tested each subject twice in succession, then the other rater tested the subject in a row. Finally, retests on the subjects with each device were performed 1 week later. The reliability was determined by Pearson correlation and intraclass correlation statistics. Results: EAV method showed poor reliability, while MIR-1 showed good reliability. Conclusion: It is suggested that further research on the reliability and useful device in both fields of clinical practice and biomedical research.