• Journal of the Korea Academia-Industrial cooperation Society
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• v.17 no.12
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• pp.62-70
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• 2016

This study investigated the development of a Korean version of the Ayurvedic constitution questionnaire and sought to verify its validity and reliability. Each study subject completed a self-administered questionnaire consisting of 63 questions. The Ayurvedic constitutions were placed into 7 categories. The results from 271 subjects revealed that the internal consistency reliability (Cronbach's ${\alpha}$) in the 41 item biometric signature part of the questionnaire was 0.757. The Cronbach's ${\alpha}$ for the 22 item psychological part was 0.616, whereas the Cronbach's ${\alpha}$ for the entire 63 items was 0.840. Taken together, the results indicate that the Korean version of the Ayurvedic questionnaire was valid. Within the questionnaire, the fourth item about body and the ninth item about psychological showed item-total correlations with negative total values, thereby indicating inconsistent (less reliable) responses. The remaining 61 items had a 0.864 degree of reliability. The results for the pure Vata Pitta and Kapha body types showed a high level of internal consistency reliability, presumably because those participants were of a pure constitution type. The Kappa factor for inter-item coincidence between the judgment of Ayurvedic constitution experts and the judgment derived from the written test scores was 0.619, thereby indicating questionnaire validity. The results of this study may be useful in further development of a Korean version of the Ayurveda constitution questionnaire.

• Journal of Digital Contents Society
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• v.19 no.7
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• pp.1405-1412
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• 2018

Korean-PEQ (prosthesis evaluation questionnaire) was developed and verified its validity research but, evaluating its reliability applied to the lower extremity amputees have not been conducted. The aim of this study was to apply the Korean-PEQ for lower extremity amputees to evaluate the reliability. As a result, all of the items responding of Korean-PEQ shown to less than 15% ceiling effect and floor effect. therefore, the results were shown to be appropriate. Korean-PEQ reliability of each region of intra-class coefficient was shown to .719(95% CI .600~.811)~920(95%CI .890~.945) and the inter-region reliability was higher as 0.958. Item internal consistency Cronbach's ${\alpha}$ values are shown as higher .910.

• Journal of The Korean Association For Science Education
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• v.30 no.2
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• pp.275-290
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• 2010

In this study, reliabilities of holistic scoring method and analytic scoring method were analyzed in performance assessments of middle school students' science investigation activity. Reliabilities of 2, 3, and 4~7-level rubric ratings for analytic scoring methods were compared to figure out optimized numbers of rubric ratings. Two trained raters rated four activity sheets of 60 students by two rating methods and three kinds of rubric ratings. Internal consistency reliabilities of holistic scoring methods were higher than those of analytic scoring methods, while intrarater reliabilities of analytic scoring were higher than those of holistic scoring methods. Internal consistency reliabilities and intra-rater reliabilities of 3-level rubric rating showed similar patterns of 4~7-level rubric ratings. But students' discriminations, item difficulties and item-response curves showed that the 3-level rubric ratings was reliable. These results suggest that holistic scoring method could be adapted to increase internal consistency reliabilities with improvement in intra-rater reliabilities by rater's conferences. Also, the 3-level rubric rating would be enough for good reliability in case of adapting analytic scoring methods.

• Journal of the Korea Society of Computer and Information
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• v.27 no.3
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• pp.225-238
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• 2022

Although the importance of literacy in Artificial Intelligence (AI) education is increasing, there is a lack of testing tools for measuring such competency. To address this gap, this study developed a testing tool that measures AI literacy among middle school students. This goal was achieved through the establishment of an expert group that was enlisted to determine the relevant factors and items covered by the proposed tool. To verify the reliability and validity of the developed tool, a field review, exploratory factor analysis, and confirmatory factor analysis were conducted. These procedures resulted in a testing tool comprising six domains that encompass 30 items. The domains are the social impact of AI (eight items), the understanding of AI (six items), AI execution plans (five items), problem solving with AI (five items), data literacy (four items), and AI ethics (two questions). The items are to be rated using a five-point Likert scale. The internal consistency of the tool was .970 (total), while that of the domains ranged from .861 to .939. This study can serve as reference for developing the analysis of AI literacy, teaching and learning, and evaluation in AI education.

• Korean Journal of Psychosomatic Medicine
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• v.23 no.2
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• pp.121-128
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• 2015

Objectives : This study developed and validated the Perceived Stigma of Delirium Scale(PSDS), which is designed to measure perceived stigma associated with delirium in patients suffering from that disorder. Methods : Based on a literature review of scales assessing stigma, a preliminary scale comprising seven items was developed. After recovering from delirium, 128 patients completed the PSDS and the Distress Thermometer (DT). Factor analysis was used to examine construct validity, and internal consistency and test-retest reliability were examined to ensure reliability. Concurrent validity was assessed using the correlation between the total scores on the PSDS and the DT. Results : Factor analysis yielded a single-factor structure from the seven candidate items. One item was excluded due to low factor loading. The internal consistency was computed and Cronbach's ${\alpha}$ was 0.85 for the total score. The overall test-retest reliability was 0.71, with items ranging from 0.58 to 0.83. The total score on the PSDS was significantly correlated with the DT score. Conclusions : The PSDS may be a reliable, valid instrument for evaluating perceived stigma in patients who have recovered from delirium. Further study of the perceived stigma by delirium patients is required to assess the implications of the PSDS for clinical practice and research.

• Therapeutic Science for Rehabilitation
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• v.8 no.4
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• pp.77-92
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• 2019

Objective : This study aims to obtain the validation of Korean version of HOME FAST using the translation-back translation process and to evaluate the reliability. Methods : Total three stages were conducted which includes forward translation to Korean, test for degree of understanding of translated version, back translation to English, and then review and proof reading process. 21 occupational therapists were participated in the evaluation of understanding of Korean-translated HOME FAST, then some of expressions were modified for better understanding. Korean version was went through back-translation to English. Similarity between the original version and re-translated version were evaluated. Total 75 data from community dwelling elderly group were collected to assess internal consistency. Two occupational therapists simultaneously evaluated for the inter-rater reliability. Results : 11 items of Korean-translated scale were responded as having confused meaning by occupational therapists. There was some modification on expression. In the evaluation of similarity between original version and re-translated version, 3 items were selected as dissimilar items in terms of syntax and 6 items were selected in terms of semantic similarity. After the repetitive modification process, items were obtained conceptual equivalence between two different languages. Internal consistency was .62(KR20) (p<.01) and inter-rater reliability was .97(ICC) (p<.01). Conclusion : Korean version of HOME FAST was finalized through translation-retranslation process. The conceptual equivalence was established and Korean version showed highly reliable. In further study, The modification of items reflecting Korean house and life style should be conducted.

• Korean Journal of Child Studies
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• v.22 no.2
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• pp.255-275
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• 2001

The purpose of this study was to construct a rating scale of infant and toddler development for the use of teachers in their observations of children during daily activities. The scale consists of 201 items measuring motor, self-help, socio-communicative, socio-emotional, and cognitive development. Quality, reliability and validity were examined with the use of a nation-wide sample of 1,245 children from classes of 1- and 2-year-olds. Tests on validity and reliability were high in terms of content validity evaluated by early childhood professionals, concurrent validity with the Bayley Scale, internal consistency among raters, and test-retest reliability. Factor analysis showed that the developmental areas of infants and toddlers are not clearly differentiated but are interrelated with each other. The scale was standardized by providing nation-wide norms with raw scores, percentiles, and standardized scores.

• Sim-seong Yeon-gu
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• v.33 no.1
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• pp.61-80
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• 2018

We investigated whether the 81 items of the Gray-Wheelwright test correctly measure the concept of Jung's typology and aimed to refine the test. Participants (n=431) completed the Gray-Wheelwright test, and the results were analyzed using factor analysis with the varimax rotation and the maximum likelihood extraction method. A pair of opposing attitudes, introversion/extroversion, or one of the two pairs of opposing functional types, thinking/feeling or intuition/sensation, was labeled to the extracted factor according to the majority type of the items in the factor. The minority items or items not included in any factors were excluded from making a short form of the Gray-Wheelwright test with 45 items. We used intraclass correlation (ICC) coefficient and Cronbach's alpha for the test-retest reliability and internal consistency of the test, respectively. The newly developed short form of the Gray-Wheelwright test measured the Jung's personality types well, which was comparable to the original one while reducing time and effort required for the testing.

• The Journal of the Korea Contents Association
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• v.12 no.2
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• pp.505-516
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• 2012

The purpose of the this research is to find out what basic factors of aging for korean elderly(above 65years old). First of all, 90 preliminary questions were developed from 551 questionnaires. In addition, some practices of the composition factors were carried out from another 552 seniors and additional tests were tried for composition validity, certified validity and successful aging standards from other 399 elders. The survey showed that the standard of the successful aging for korean elderly, which was composed of 47 questions, displayed satisfaction of everyday life, off-spring's success, psychological support, positive activity. sense of self effectiveness, mental stability, satisfaction of spousal relationship and family support. The reliability of the Validation of Successful Aging for Korean Elderly showed high internal consistency of 0.932. It is also verified that the relationship between the factors and the questions has statistically meaningful, which makes it possible to confirm the reliability of the structure of the factors.

• Korean Journal of Health Psychology
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• v.19 no.1
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• pp.407-420
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• 2014

In this study, a Korean abbreviation scale to measure love and compassion toward other person was developed based on a critical review on Compassionate Love Scale(CLS; Sprecher, & Fehr, 2005). In the study 1, 12 items were selected from the original version of 21 item CLS by surveying a sample of 207 college students on the basis of several psychometric characteristics (i.e., discriminability, coefficient of factor loading, and contribution to internal consistency). In the study 2, the validity of 12 item version, ACLS (Ajou Compassionate Love Scale), was confirmed by examining the factor structure, reliability, and correlations with other related scales. The results clearly showed that ACLS not only had a sufficient psychometric properties as the CLS, but also superior to the CLS in terms of parsimoniousness. Limitations and implications for future research of ACLS were discussed.