• Journal of Korean Academy of Nursing
• /
• v.49 no.1
• /
• pp.80-91
• /
• 2019

Purpose: This study attempted to develop a scale that measures the level of patients' recognition of the nurses' care, based on Watson's caring theory, and confirmed its reliability and validity. Methods: The items were developed through a literature review and an expert content validity test. The questionnaires were administered to 285 inpatients of internal medicine and surgical units at two general hospitals. Construct validity was tested using exploratory and confirmatory factor analysis, and reliability was tested using Cronbach's alpha. Results: This process resulted in a preliminary scale composed of 34 items; We used item analysis and five exploratory factor analyses, and consequently selected 14 items composed of three factors (respect, genuineness, and relationality). The confirmatory factor analysis verified the model fit and convergent and discriminant validity of the final items; criterion validity was confirmed with the positive correlation with the measurement scale of the patient-perceived quality of nursing. The overall scale reliability had a Cronbach's alpha of .92, which indicated internal consistency and reliability. Conclusion: The developed scale showed content, construct, and criterion validity, and reliability, as well as convergent validity for each item and discriminant validity between the factors. This makes it suitable for use in a diverse range of future studies on nurse communication using structural equation models.

• Journal of Korean Critical Care Nursing
• /
• v.15 no.2
• /
• pp.64-76
• /
• 2022

Purpose : This study aimed to verify the validity and reliability of the Korean version of the nurses' attitude scale toward advance directives of patients. Methods : We translated and back-translated the original tool consisting of 20 questions and tested and verified its content validity. Questions for which its content validity has been verified, a preliminary investigation was conducted among 20 nurses working in ICU, followed by the actual investigation. Data were analyzed using SPSS version 24.0 for Windows and Mac and AMOS version 24.0. To verify the validity, an item analysis was conducted for all 398 samples, and then an exploratory factor analysis for 200 samples that were randomly selected, followed by a confirmatory factor analysis for the remaining 198 samples. Results : Korean version of advance directives attitude scale (K-ADAS) consisting of 14 questions - 7 questions on 'patient rights,' 4 questions on 'role of a nurse,' and 3 questions on 'ethical judgment' - was verified its validity and reliability. Conclusion : In this study, the validity and reliability of the K-ADAS have been verified. We expect the verified tool to be useful in various fields that measuring the nurses' attitude toward advance directives of patients.

• The Journal of Korean Physical Therapy
• /
• v.19 no.5
• /
• pp.29-41
• /
• 2007

Purpose: The aim of this study was to examine the validity and reliability on Psychometric Arthritis Impact Measurement Scale-Short Form (AIMS-SF) in patients with knee osteoarthritis(OA). Methods: The sample consisted of 62 patients who had received physical therapy at the physical therapy units of the Andong Medical Center, Sungso Hospital, Ahn Orthopedic Surgery Clinic, and St. Luke Clinic in Andong city in June 2006. Questionnaire on the AIMS-SF was recruited by 5 physical therapists. The internal structure and reliability of the scales were evaluated by means of item-internal consistency(Cronbach's alpha coefficient: ${\alpha}$), item-discriminant validity, Pearson's relation coefficient. To explore construct validity we conducted a principal component factor analysis with varimax rotation analysis. The criterion for factor extraction was an eigenvalue >1.0. Results: 62 OA patients's an average $age{\pm}standard$ deviation was $53.8{\pm}14.4$ years (range: $40{\sim}81$ yr). The internal consistency reliability of 11 items, as estimated by Cronbach's ${\alpha}$ coefficient, was high ranging $0.60{\sim}0.78$ (except for 0.40 for mobility level and -0.48 for mood). The internal consistency reliability of item-each scale was also high $0.82{\sim}0.93$ (except for 0.48 for mood). Of 11 items, the item-discriminant validity on 6 items was high (${\alpha}$ coefficient range: $0.11{\sim}0.25$), however, others (0.57 for tension level, 0.48 for arthritis pain, 0.41 for walking and bending, and 0.40 for work) were a little low. The construct validity by factor analysis was a little low. Conclusion: In conclusion, the results reported here confirm the validity and reliability of the AIMS-SF in patients with OA of the knee. The Collection of information on health status using this instrument was acceptable to patients. A further prospective multi-center study will be necessary to prove the construct validity.

• Journal of the Korean Society of Laryngology, Phoniatrics and Logopedics
• /
• v.30 no.1
• /
• pp.21-27
• /
• 2019

Background and Objectives : Voice disorder is recognized as a major problem because it negatively affects the elderly's social participation and quality of life. The purpose of this study was to examine the validity and reliability of Korean aging voice index (KAVI), which assesses the quality of life related to the voice of the elderly. Materials and Method : This study was conducted on 211 elderly people aged 65 years or older : 111 patients with voice disorder (mean age 69.8, range 65-80 years) and 100 nomorphonic participants (mean age 70.6, range 65-82 years). Aging voice index was translated into Korean and used and Korean voice-related quality of life (KVQOL) was conducted to verify KAVI. The validity (item validity, concurrent validity, and construct validity) and reliability (test-retest reliability and internal consistency reliability) of KAVI. Results : The item validity (ICC=0.895) and construct validity (r=0.765) showed a high correlation, respectively. And concurrent validity (r=0.748), test-retest reliability (0.851), and internal consistency reliability (${\alpha}=0.832$) were statistically significant in voice disorder group. In addition, there was a significant difference between the voice disorder and the nomorphonic group in AVI total score. Conclusion : KAVI is a validated and reliable quality of life tool that will be useful for assessing the presence and effectiveness of interventions in clinical settings.

• International Journal of Internet, Broadcasting and Communication
• /
• v.10 no.3
• /
• pp.65-72
• /
• 2018

The purpose of this study was to assess the intra-tester and inter-tester reliability and validity of elbow flexion range of motion using a smart phone used by the general public. Thirty-one general people participated in this study. The range of motion in active elbow flexion was measured with a goniometer and smart phone over two times by two observers. The intra-taster and inter-tester reliability were evaluated using the intraclass correlation coefficient(ICC). The validity was measured by Pearson's correlation coefficient. The intra-observer reliability was good in all measured items ICC>0.900. The inter-observer reliability was high with ICC>0.806. All correlation coefficients of android app and goniometer were greater than 0.868 and showed a significant positive correlation (p<0.01). The range of motion measurement with a smart phone showed acceptable reliability. Therefore, using a smartphone to measure the range of motion of the elbow joint could provide convenience and economic benefits.

• Korean Journal of Childcare and Education
• /
• v.12 no.4
• /
• pp.111-130
• /
• 2016

This study examined the reliability and validity evidence of the Korean version of Wechsler Primary & Preschool Scale for Intelligence(K-WPPSI-IV), which was standardized recently. Following the stratified sampling for Korean population in terms of region and maternal education level, 1,700 children aged 2.6~7.7 years were recruited for Korean norm development. The split-half reliability (N=1,700) was high(Fisher's z(.75-.89)) and test-retest reliability(N=100) was satisfactory ranging from .95 to .68. The inter-rater reliability(N=110) was very high(.96-1.0). Discriminant and convergent validities were revealed by correlational patterns among subtests and indices. Future studies are needed to extend both reliability and validity of K-WPPSI-IV by collecting data with a various sample group and a variety of instruments.

• Journal of the Korean Society for Library and Information Science
• /
• v.34 no.2
• /
• pp.175-189
• /
• 2000

This study describes validity and reliability, which are important factors to obtain scientific results in the study of library and information science. Specifically, this paper starts by exploring the definition and types of validity and reliability. It then analyzes the factors which affect to validity and reliability in developing test-items through the previous studies. It is proposed that validity and reliability be regarded as basic and important components to solve problems related to library and information science in the future scientifically.

• Journal of Korean Academy of Nursing
• /
• v.44 no.2
• /
• pp.209-218
• /
• 2014

Purpose: The purpose of this study was to develop an instrument to assess bullying of nurses, and test the validity and reliability of the instrument. Methods: The initial thirty items of WPBN-TI were identified through a review of the literature on types bullying related to nursing and in-depth interviews with 14 nurses who experienced bullying at work. Sixteen items were developed through 2 content validity tests by 9 experts and 10 nurses. The final WPBN-TI instrument was evaluated by 458 nurses from five general hospitals in the Incheon metropolitan area. SPSS 18.0 program was used to assess the instrument based on internal consistency reliability, construct validity, and criterion validity. Results: WPBN-TI consisted of 16 items with three distinct factors (verbal and nonverbal bullying, work-related bullying, and external threats), which explained 60.3% of the total variance. The convergent validity and determinant validity for WPBN-TI were 100.0%, 89.7%, respectively. Known-groups validity of WPBN-TI was proven through the mean difference between subjective perception of bullying. The satisfied criterion validity for WPBN-TI was more than .70. The reliability of WPBN-TI was Cronbach's ${\alpha}$ of .91. Conclusions: WPBN-TI with high validity and reliability is suitable to determine types of bullying in nursing workplace.

• Physical Therapy Korea
• /
• v.17 no.3
• /
• pp.40-47
• /
• 2010

The purposes of this study were to compare the reliability and validity of an 88-item version of the Gross Motor Function Measure (GMFM-88) and a 66-item version of GMFM (GMFM-66) in children with cerebral palsy (CP). The GMFM was completed in 154 children with CP (age range = 6~12). The internal consistency of the GMFM was calculated by Cronbach's ${\alpha}$ for judging reliability. The reliability of GMFM-88 and GMFM-66 were both above .99. The validity of measurement obtained by the GMFM was assessed by examining the unidimensionality of items and by comparing Gross Motor Function Classification System (GMFCS) levels with tests of the GMFM. Both the GMFM-88 and GMFM-66 were satisfied with unidimensionality. Discriminant validity was demonstrated on significant decreases in scores with increasing GMFCS levels in both measurements. However, GMFM-66 was a more sensitive discriminant in GMFCS level 1 and level 2 and in level 2 and level 4. This study reported a comparison of the reliability and validity of GMFM-88 and GMFM-66. The results of this study have implications for the information on the psychometric properties of two versions of GMFCS. This information will be useful for the selection of tools in clinics.

• Anxiety and mood
• /
• v.8 no.2
• /
• pp.153-160
• /
• 2012

Objectives : The purpose of this study was to develop an employee's stress response scale (ESRS) and examine its validity and reliability. Methods : The study was conducted as follows : item generation, and test of validity and reliability. Items were developed via literature review, review of instruments, and data acquired from email-survey of counselors in the field of Employee Assistance Program (EAP). In order to test validity and reliability, data were collected from 400 employees. Results : The result of exploratory factor analysis of ESRS suggested 4 factor structures (work-related, anger, somatization, depression & anxiety) with a total of 25 items. ESRS showed a relatively strong positive correlation with Hospital Anxiety-Depression scale (HAD), Perceived Stress Scale (PSS), and Psychological Wellbeing Index (PWI), which showed ESRS had high convergent validity. Cronbach's ${\alpha}$ and test-retest reliability was .95 and .610 respectively. Conclusion : The ESRS is reliable and valid brief scale for measuring stress responses of employees. This scale would be useful in quantitatively evaluating job stress in workplace.