Reliability Test Research Articles

Pengaruh Word of Mouth dan Harga terhadap Kepuasan Konsumen pada Aplikasi Maxim

The number of online transportation companies in Indonesia is growing due to advances in technology that enable everything to be done online. This study used quantitative methods to determine the impact of word of mouth and price variables on consumer satisfaction with the Maxim application. A questionnaire was distributed to 115 users of the Maxim online transportation application, and the data was processed using SSPS with multiple linear regression analysis, T-test, r-test, R2 test, Validity test, and Reliability test. The results showed that word of mouth and price had a positive effect on consumer satisfaction with the Maxim application. A number 78.3% of consumer satisfaction was influenced by the independent variables, namely word of mouth (X2) and price (X2) while the remaining 21.7% is influenced by other variables in this research.

Pengaruh Harga dan Promosi Terhadap Loyalitas Konsumen Pengguna Aplikasi Grab-Food di Yogyakarta

This research aims to determine the influence of price variables and promotion variables on consumer loyalty among Grab-Food users in Yogyakarta. The variables used in this study consist of independent variables, namely price (X1) and promotion (X2), as well as the dependent variable, which is consumer loyalty (Y). The data was analyzed using descriptive analysis, instrument quality testing (validity and reliability tests), and hypothesis testing through multiple linear regression (t-test and R² test), with a total of 100 respondents. The results of the analysis using the multiple linear regression equation show that price has a significant effect on consumer loyalty among Grab-Food users in Yogyakarta. This means that price significantly influences consumer loyalty and has a simultaneous significant effect on consumer loyalty. Consumer loyalty of Grab-Food users in Yogyakarta is influenced by price (X1) and promotion (X2), while the remaining factors are influenced by other variables not included in this study.

The Role of Corporate Image, Quality Service and Customer Satisfaction To Intention Behavior and Customer Loyalty

This study aims to investigate the relationship between corporate image, service quality, customer satisfaction, behavioral intention, and customer loyalty at PT Indomarco Prismatama ( Indomaret ). The research utilizes a quantitative approach with a descriptive design, involving 155 respondents selected through purposive sampling. Data were collected using an online questionnaire and analyzed using Partial Least Squares – Structural Equation Modeling (PLS-SEM). The findings indicate that corporate image positively and significantly influences customer satisfaction, which in turn influences behavioral intention and customer loyalty. Additionally, service quality is shown to positively impact both corporate image and customer satisfaction. Validity and reliability tests confirm that all variables in the model exhibit good quality. The study supports all proposed hypotheses and is consistent with previous research, highlighting the importance of corporate image, service quality, and customer satisfaction in influencing behavioral intention and customer loyalty. Managerial implications include the need to focus on enhancing service quality and strengthening corporate image to increase customer satisfaction and loyalty. Limitations of the study include the restricted sample scope to the Jabodetabek area and the use of online data collection methods. Future research is recommended to expand the sample scope and consider longitudinal approaches. Keywords: Corporate Image, Service Quality, Customer Satisfaction, Behavioral Intention, Customer Loyalty.

Prediction of Heat Transfer during Condensation of Ammonia Inside Tubes and Annuli

Ammonia has been used as a refrigerant since the beginning of the refrigeration industry and it continues to be an important industrial refrigerant. However, there is no well-verified method for predicting heat transfer during condensation in tubes and annuli. Available information is often contradictory, especially about the effect of oil. In this paper, available test data and predictive methods are reviewed. Reliable test data are identified and compared to well-known general correlations. The effect of oil on heat transfer is investigated. The results of this research are presented, and recommendations are made for design calculations.

Psychometric Properties of the Turkish Version of the Kids-Palatable Eating Motives Scale

Scales that can elucidate the relationship between eating behavior and obesity in children, and thereby improve prevention and treatment of obesity in this population are lacking. As in the U.S., Turkish use are at risk for obesity. This study was conducted to test the validity and reliability of a Turkish version of the Kids-Palatable Eating Motives Scale. The methodological type of research was conducted between March 2023 and May 2023 with 344 children between the ages of 8-18. They completed a translated and back-translated version of the Kids-Palatable Eating Motives Scale. Validity analysis included content, face, and construct methods. Item, split-half method, and Cronbach’s alpha coefficient were employed in testing reliability. The content validity index was 0.99. Kaiser-Meyer-Olkin value was 0.915 and Bartlett’s value was χ2=6195.792 (p

Way to achieve sustainable benefits of ISO 9001 practices

PurposeThe primary aim of the current study is to validate the theoretical model presented by Demir (2021a, b, c) via empirical evidence. In this respect, the study intends to offer a holistic pathway for obtaining both external and internal advantages from the implementation of ISO 9001, with a particular emphasis on developing countries.Design/methodology/approachThe research utilized an empirical methodology to investigate the research objective. Data were collected from various sources, including employees and managers of the various companies. In this context, a model was developed, and 170 data points were collected from businesses in the Kurdistan region of Iraq in order to test the hypotheses in this model.FindingsAfter the collected data passed the reliability and validity test, the hypotheses designed were tested by applying the partial least squares method. When the results were examined, it was observed that organizational culture and organizational learning variables were the two key antecedents that these factors would emerge after applying ISO 9001 practices with discipline for a certain period of time and that organizational benefits could be obtained only as a result of them. Detailed results and suggestions were given to managers and theorists as a result of the analysis.Originality/valueThis study contributes to the literature as an empirical application of the theoretical work written by Demir in 2021. Demir's work, which produced a theoretical concept based on many empirical and theoretical studies done before, still needs much more empirical work in developing countries.

Development and validation of asthma diagnostic scale for children.

To construct an asthma diagnostic scale for children under 6 years old. An electronic medical record database was used to develop the scale. Item pool was established through literature survey and expert opinion. Items were screened and optimized by using the Delphi method, t-test, reactivity analysis, Pearson correlation coefficient, factor analysis, reliability and validity test. The predictive probability of asthma was calculated using logistic regression, and receiver operating characteristic curve. Another childhood asthma database was used to validated the scale. The asthma diagnostic scale for children under 6 years old included five dimensions: dimension 1 (shortness of breath, three concave sign, cyanosis, moist rale, heart rhythm, heart sound and dyspnea), dimension 2 (respiratory sound, cough, sputum), dimension 3 (frequency of wheezing, allergic rhinitis, history of allergy in one or both parents), dimension 4 (sex, wheezing, atopic dermatitis), and dimension 5 (reversible airflow, positive in vitro or in vivo allergy test). The Cronbach's α coefficients for the five dimensions were 0.846, 0.459, 0.019, 0.202, and 0.024. The area under the ROC curve (AUC), sensitivity, and specificity were 0.737, 59.1%, and 81.2%. AUC, sensitivity, and specificity in the validation database were 0.614, 76.2%, and 46.7%. The scale has significant diagnostic value for asthma in children under 6 years old. 1. The aim of the study was to establish an asthma diagnosis scale for children younger than 6 years old. 2. Our study not only addresses the lack of diagnostic criteria of young children asthma, but also indicates the accuracy of the diagnostic scale. 3. The data may help to reduce the missed diagnosis and misdiagnosis rate of asthma, and improve the diagnostic accuracy of the disease, and thus reduces the harm of asthma to children's physical and mental health.

Assessing the Mediating Role of Life Satisfaction in the Nexus Between Financial Behavior and Financial Well-being

This quantitative non-experimental correlational study mainly aim to investigate the mediating effect of life satisfaction in the relationship between financial behavior and financial well-being of college students in the Davao Region. The data were collected online through Google Forms using adopted instruments. The respondents were chosen through stratified random selection. The measuring model underwent validity and reliability tests. Descriptive statistics were utilized to define the constructs in the study. The hypothesized mediation model was assessed by mediation analysis utilizing the standard algorithm bootstrapping of SmartPLS 4.0. Further, the study was anchored to the Theory of Planned Behavior, Life Satisfaction Theory, and the Behavioral Life-Cycle Hypothesis. The results indicated that the variables of the research satisfy both validity and reliability tests. The findings revealed that the students have moderate levels of life satisfaction and financial well-being while they demonstrate high levels of financial behavior.

Influence of Runway Capacity and Air Traffic Capacity on the Growth of Aviation Business. Evidence From Wilson Airport, Kenya

The study focused on the effects of runway capacity and air traffic control on the growth of aviation businesses. The guiding objectives of this study were: to determine the effect of runway capacity on the aviation business growth in Kenya and to evaluate the effect of air traffic control capacity on aviation business growth in Kenya. The study was guided by resource-based theory. The study employed an explanatory research design. The study targeted 117 respondents comprising 92 operational managers at Wilson Airport, 25 air traffic controls, and Kenya Airport Authority employees based at Wilson Airport. A Census survey was used in this study to collect information from all participants in the population. The study collected primary data using questionnaires. In testing for reliability, Cronbach’s alpha coefficient was applied. Statistical Package for the Social Sciences (SPSS) version was used for data analysis. The study findings revealed that runway capacity positively and significantly affects aviation business growth. Air traffic control capacity has a positive and significant effect on aviation business growth). It can be concluded that runway capacity at Wilson Airport is insufficient. Night-hour flying can enhance runway capacity, and by large, aviation growth as AOC holders can fly more due to increased operating hours. The aerodrome owner and operator should ensure that it boosts the existing runway capacity either by optimizing the operations or expanding to cater to business growth. KAA and KCAA, the regulators, should consider boosting the runway capacity through increasing navigation aids to enable the introduction of night flying. The study recommends that future researcher’s study on the influence of public, and private partnerships to increase the ground movement capacity on aviation growth can also be conducted

Development of Physics Websites Based on STEM Assisted of Google Sites on Momentum and Impulse Materials to Improve Creative Thinking Skills

Goals of this study to determine effect of applying physics websites based on STEM assisted of Google Sites to advance student’s creative thinking skills for momentum and impulse materials. Method in this research is R&D by using ADDIE Models, and for experimental using one group research design pretest-posttest design. Collecting data technique are questionnaire and instrument test (pretest and posttest). The Data was obtained in SMA Negeri 1 Berau, with the respondent in this study 32 students from X MIPA 1, data analyzed by Software IBM SPSS Statistics 25 for Descriptive statistics, Sign Test and Reliability test. The research results showed that the instrument which have been developed was reliable. the results obtained that the website developed is practical for learning. The treatment given is able to advance students' creative thinking skills, which showed from the high average post-test score compared to the pre-test. The Profile Student’s creative thinking skills each indicator showing that for indicator originality, flexibility, and elaboration has increase, but there is no difference value for indicator fluency

Evaluating depression in Indonesian adolescents with epilepsy: Comprehensive validation and reliability assessment of the neurological disorders depression inventory-epilepsy for youth Indonesian version (NDDI-E-Y[ID]).

Epilepsy is a common chronic neurological disorder in pediatrics. Depression is an often underdetected comorbidity in childhood epilepsy. This study aimed to adapt the Neurological Disorders Depression Inventory-Epilepsy for Youth (NDDI-E-Y) to the Indonesian language and population, as well as to validate the Indonesian version of NDDI-E-Y (NDDI-E-Y[ID]). This three-stage study comprised instrument translation, cultural verification, and content validity testing (first stage), pilot testing (second stage), followed by concurrent validity and reliability testing (third stage) of the NDDI-E-Y(ID). Validation was done against the Centre for Epidemiologic Studies Depression Scale - Revised (CESD-R). Content validity, assessed by six experts, was quantified using the content validity index for items (I-CVI) and scale (S-CVI). Participants were adolescents aged 12-17 years diagnosed with any type of epilepsy who completed both instruments. Concurrent validity was evaluated using Spearman's correlation and reliability was measured using Cronbach's alpha. The first stage produced a culturally appropriate NDDI-E-Y(ID). Thirty healthy adolescents and 10 adolescents with epilepsy participated in the second stage. In the third stage, another group of 30 adolescents with epilepsy took part. We obtained I-CVI and S-CVI values averaging 1. The NDDI-E-Y(ID) showed a positive and significant correlation with CESD-R (Spearman's rho = 0.671, p < 0.001). A Cronbach's alpha of 0.928 reflected a high internal consistency. Based on the results, the NDDI-E-Y(ID) was found to be a valid and reliable screening instrument for detecting depression in youth with epilepsy. Depression is an under-recognized problem in youth with epilepsy. Currently available depression screening tools are in English, making it less suitable for detection purposes in Indonesia. This study developed and validated the Indonesian version of the NDDI-E-Y, a depression screening tool for youth with epilepsy.

Reconnoitering the Correlation between ICT Facilities’ Application and Capacity Building of Library Staff in University Libraries in South-South, Nigeria

Technology integration in library operations is fundamental to meeting information, literature and research needs of students, researchers and administrative staff of tertiary institutions. This study explored the correlation between ICT facilities application such as social media handles, internet, as well as online public access catalogue (OPAC) and capacity building of library staff in public university libraries in South-South, Nigeria. Correlational research design was used to examine the extent to which ICT facilities’ application correlate with capacity building of library staff. Three (3) each of research objectives, questions, and hypotheses were formulated to guide the study. The population was 416 library staff from six public university libraries. The total enumeration sampling technique was used. Two sets of self-structured questionnaire instruments totaling 416 copies were used for data collection, out of which, 306 were retrieved and analyzed which represented 74% response rate. Face and content validity of the instruments were done. A reliability test was conducted which yielded the coefficients of 0.89 and 0.85 respectively. The research questions were analyzed using Pearson Product Moment Correlation Coefficient (PPMC) while the hypotheses were tested at 0.05 level of significance using linear regression statistics. Findings revealed a significant positive correlation between internet, social media handles application and capacity building of library staff, while applications of OPAC showed a feeble correlation with capacity building. Hence, the level to which ICT facilities’ application correlate with capacity building of library staff in the university libraries was insignificant, which by implication had negative effects on library staff services delivery. It was therefore recommended, among other measures, the implementation of a comprehensive ICT training programme to address gaps in ICT facilities’ application by library staff for effective utilization of all relevant technologies.

EFFECTIVENESS OF GRATITUDE INTERVENTIONS IN SCHOOLS TO INCREASE SENSE OF SCHOOL BELONGING TO HIGH SCHOOL STUDENTS

A sense of school belonging that tends to be low has an impact on problematic behavior at school, so effective psychological intervention is needed. One form of intervention carried out is gratitude intervention. This study aims to determine the effectiveness of gratitude interventions in increasing the sense of school belonging of high school students. This study uses a quantitative approach with the type of experimental research, and the design used is a pre-experimental one group pretest-posttest design. The research was conducted on students of SMA Negeri 5 Soppeng with 34 students. The determination of research participants was using the purposive sampling technique. Data were obtained by filling out the Psychological Sense of School Membership (PSSM) scale before and after the gratitude intervention. The validity of the PSSM scale was calculated using the Aiken's V test and obtained a coefficient of 0.88, while the reliability test used Cronbach's Alfa, with a reliability coefficient value of 0.86. The data analysis technique uses the N-Gain score test. The results showed that the average score of sense of school belonging before the intervention was 40.15, while after the intervention it increased to 73.5, the results of the hypothesis test using the difference index (N Gain Score) recorded an increase of 55.9. Thus, the hypothesis in this study is accepted, which means that gratitude interventions in schools are quite effective in increasing the sense of school belonging of high school students.

Response to the Letter to the Editor: Reliability of Visual Field Testing in a Telehealth Setting Using a Head-Mounted Device: A Pilot Study.

Response to the Letter to the Editor: Reliability of Visual Field Testing in a Telehealth Setting Using a Head-Mounted Device: A Pilot Study.

Assessing the Impact of Human Resource Competency and Employee Commitment on Performance at Urban Republic, a Member of the Erajaya Group, Palembang

Companies must innovate and improve employee performance in today’s competitive business climate to maintain their market share. Urban Republic, a company headquartered in Palembang and part of the Erajaya Group, is the subject of this study, which examines the relationship between employee participation and HR competency and performance. Improving employee performance requires HR competency, including technical and non-technical skills, and employee commitment, characterized by loyalty and dedication. For Urban Republic to remain competitive, they must understand how these elements affect performance. This study aimed to assess the impact of employee commitment and HR competency on performance. Three sections of labor area heads, store leaders, and staff were given surveys as part of the quantitative approach. Multiple regression analysis was used to analyze the data, supported by validity, reliability, and classical assumption tests. The results showed that employee dedication showed almost significant significance, indicating a possible influence, while employee competence had a statistically significant impact on employee performance. Dedication and HR competency significantly impact performance when the two work together. This analysis emphasizes the importance of continuous HR development investment and the potential benefits of employee commitment. To reduce the risk of employee turnover, it is recommended that HR training programs be improved, employee recognition programs be strengthened, commitment issues be addressed, and staff well-being be monitored to avoid burnout. It is recommended that more research be conducted to examine the intricacies of employee dedication and how it impacts work outcomes. The study concluded that a balanced focus on HR competency and employee commitment is essential to optimize employee performance at Urban Republic

Cross-Cultural Adaptation and Clinical Validation of the Mini Sarcopenia Risk Assessment Questionnaire in Community-Dwelling Spanish Older Adults

(1) Background: The aim was to analyze the reliability and validity of the Spanish version of the Mini Sarcopenia Risk Assessment (MSRA) in older adults. (2) Methods: A total of 136 participants (72.24 ± 5.21 years, 68.38% women) took part in the study. The MSRA includes two questionnaires with seven (MSRA-7) and five items (MSRA-5). First, reliability (inter-rater and test–retest) of the Spanish MSRA was studied, and then the total scores were compared with the presence of sarcopenia according to three different diagnostic criteria and with other parameters related to sarcopenia (clinical validation). (3) Results: The analysis showed excellent inter-rater and test–retest reliability. As for the clinical validation, and regardless of the criteria, both questionnaires had a high sensitivity (81.82–88.89% for the MSRA-5 and 90.91–94.44% for the MSRA-7), while the MSRA-5 showed a better specificity (32.00–33.90%) than the MSRA-7 (20.80–22.88%). Predictive positive values ranged from 9.57–17.02% (MSRA-5) and 9.17–15.54% (MSRA-7), while predictive negative values were high for both the MSRA-5 (95.24%) and the MSRA-7 (96.30–96.43%). The accuracy was better for the MSRA-5 (36.03–41.18%) than the MSRA-7 (26.47–32.35%), as well as the area under the curve (0.67–0.76 vs. 0.65–0.73, respectively). Higher MSRA-5 and MSRA-7 total scores significantly correlated with greater muscle strength, quantity and gait speed. (4) Conclusions: The adaptation of the Spanish MSRA questionnaires was successfully performed, and they are reliable and clinically valid tools for assessing sarcopenia.

Transadaptation and validation of dysphagia handicap index in Bangla

Background: The aim of this study was to transadapt and validate the Bangla version of DHI (DHI-B). The objective of the study was to translate and culturally adapt the Dysphagia Handicap Index (DHI) in Bangla language. Methods: Thirty individuals (mean age-42.23, SD±12.52) with dysphagia and an equal number of healthy individuals (mean age-28.23, SD±10.68) participated to fill up the questionnaire of DHI-B. Establishment of validity was done by comparing DHI-B scores of healthy controls and patients with dysphagia. Test–retest reproducibility, content validity and concurrent validity were established and internal consistency were used for reliability testing. Results: The overall Cronbach’s α for DHI-B was 0.84, indicating good internal consistency. Pearson’s correlation on test–retest reliability of DHI-B was found to be 0.9. Correlation that achieved between subscales of DHI-B and total DHI-B was analysed using Pearson’s correlation which was found very high. Compared to the dysphagic group, the control group showed significantly lower scores for all scales. Conclusion: From this study it was concluded that DHI-B showed good internal consistency, test-retest reliability, and concurrent validity. Therefore, it could be claimed that for assessment of dysphagia related handicap in Bangla, DHI-B is a reliable and valid tool.

Analysis of Recruitment, Selection, and Placement on Employee Performance (Study on the West Papua Provincial Education Office)

Background: Human resources (HR) are an essential asset for every organization, including the West Papua Provincial Education Office, where effective recruitment, selection, and placement play a vital role in achieving optimal performance. High employee performance can drive the achievement of organizational goals, but many organizations face challenges in managing the proper recruitment and selection process, resulting in inappropriate employee placement. Purpose: This study aims to examine and analyze the influence of recruitment, selection, and placement on the performance of employees of the West Papua Provincial Education Office. Methods: This research method uses a quantitative method. The research sample consisted of 114 employees of the Papua Basrat Provincial Education Office. Data was collected using questionnaires and then processed using the SPSS program. Meanwhile, the data testing techniques used in this study include validity tests, reliability tests with Cronbach's Alpha, normality tests, multicollinearity tests, multiple linear regression analysis, t-tests, and determination coefficients. Results: The results showed that employee placement had a positive and significant influence on employee performance, selection had a positive and significant influence on employee performance, and recruitment did not have a significant influence on employee performance. Conclusion: Effective placement and selection are the primary keys to improving employee performance, while the recruitment process needs to be improved to achieve more optimal results.

Evaluation of the Effect of Thermal Comfort in PMV-Method Classrooms on Teacher Work Stress Levels in the Dry Tropics (Study at Beru Elementary School, Sikka Regency)

This study aims to evaluate the effect of classroom thermal comfort on the level of teacher work stress in a dry tropical region (Study at SDI Beru, Sikka Regency), using the PMV (Predicted Mean Vote) method. Thermal comfort, which includes temperature, humidity, and air flow, is very important to create a conducive learning environment. Temperature and humidity measurement data were collected using temperature and humidity measuring devices model GSP-6 and RC-4HC for a certain period. In addition to using PMV, this study also used Regression and Correlation data analysis using SPSS. The sample used was a saturated sample. The results obtained in this study indicate that based on the PMV calculation, it was obtained that the temperature and humidity in the classroom varied and often exceeded the ideal comfort range. This condition can increase the level of teacher work stress and reduce productivity, this is in line with the results obtained from the SPSS program obtained validity and reliability testing using SPSS software there are 50 valid and reliable statements, the results of the analysis show that there is a significant linear relationship between work stress and thermal comfort (F Linearity = 30.454; Sig Linearity = .000). Based on these calculations, it can be seen that the regression coefficient value of the thermal comfort variable (X1) is 0.498 with a positive sign at sig 0.000 which is smaller than 0.05, namely 0.000 0.05. The regression coefficient value of the thermal comfort variable (X1) of 0.498 indicates that there is a positive relationship between thermal comfort and teacher work stress. This means that every one unit increase in thermal comfort will be associated with a 0.498 unit increase in the measured variable (teacher work stress). The significance value (p-value) of 0.000 is smaller than 0.05 (0.000 0.05). This shows that the results are statistically significant. In other words, there is strong evidence to state that thermal comfort has an effect on teacher work stress. So it can be interpreted that thermal comfort has a positive effect on teacher work stress.

The Test and Protect Program: A Data-Driven, Community-Engaged Approach to COVID-19 Testing Site Localization.

As the COVID-19 pandemic progressed, reliable, accessible, and equitable community-based testing strategies were sought that did not flood already overburdened hospitals and emergency departments. In Hamilton County, Ohio, home to~800 000 people across urban, suburban, and rural areas, we sought to develop and optimize an accessible, equitable county-wide COVID-19 testing program. Using Coronavirus Aid, Relief, and Economic Security Act funding, multidisciplinary, multiorganization partners created the test and protect program to deliver safe, reliable testing in neighborhoods and organizations needing it most. Our approach involved: (1) use of geospatial analytics to identify testing locations positioned to optimize access; (2) community engagement to ensure sites were in trusted places; and (3) tracking of data over time to facilitate ongoing improvement. Between August 2020 and December 2021, more than 65 000 tests were completed for nearly 46 000 individuals at community-based testing sites. These methods could have application beyond COVID-19 and our region.