Bartlett’s Test

2011 ◽  
pp. 87-88 ◽  
Author(s):  
Hossein Arsham ◽  
Miodrag Lovric
Keyword(s):  
Bartlett’S Test

scholarly journals Measurement of empathy among health professionals during Syrian crisis using the Syrian empathy scale

2021 ◽  
Vol 21 (1) ◽  
Author(s):  
Mayssoon Dashash ◽  
Mounzer Boubou
Keyword(s):  
Health Care ◽  
Factor Analysis ◽  
Health Professionals ◽  
Cross Sectional ◽  
Syrian Crisis ◽  
Empathy Score ◽  
Bartlett’S Test ◽  
Significant Difference ◽  
Pain And Suffering ◽  
Empathy Scale

Abstract Background Health professionals should have certain degree of empathy to eliminate the pain and suffering of their patients. There is a need to design a scale, which can assess empathy among health professionals and is relevant to community and culture. Therefore, this study was undertaken to measure the empathy among Syrian health professionals and students of health professions using a newly designed Syrian Empathy Scale that is relevant to community during Syrian crisis. Methods A cross-sectional observational study was undertaken. A total of 214 participants (118 males and 96 females) responded to the Syrian Empathy Scale SES from Medical (n = 62), Dental (n = 152). They were 59 undergraduates, 116 postgraduates and 39 general practitioners. The SES was designed as a tool that includes 20 items in a 7-point Likert-type scale with overall score ranges from 20 to 140. Group comparisons of the empathy scores were conducted using t-test and analysis of variance (ANOVA). A factor analysis was performed. Bartlett’s test of the sphericity and the KMO measure of sampling adequacy were also determined. Cronbach’s alpha was calculated. Results A significant difference was found between males and females in the SES mean score. The ANOVA analysis showed that the SES empathy scores of dentists were higher than the SES empathy scores in medical doctors with no significant difference. The SES empathy score of undergraduates was significantly higher than postgraduates and practitioners. Findings of KMO indicated sampling adequacy (KMO = 0.824 > 0.7) and the value of Bartlett’s test of the sphericity (1255.65, df = 190, P-value< 0.001) proved that the factor analysis is meaningful and acceptable. The results of varimax rotation proved that five main factors were retained. Conclusion Findings of this study support the reliability of the newly designed Syrian Empathy Scale for measuring empathy in the field of health care. The SES can be suggested for assessing empathy in different health educational programs. However, future works are still essential to support the validity of the scale as well as to ascertain the role of empathy in improving health care.

scholarly journals The Application of Box–Cox Transformation to Determine the Standardised Precipitation Index (SPI), the Standardised Discharge Index (SDI) and to Identify Drought Events: Case Study in Eastern Kujawy (Central Poland)

2014 ◽  
Vol 22 (1) ◽  
pp. 3-15 ◽  
Author(s):  
Arkadiusz Bartczak ◽  
Ryszard Glazik ◽  
Sebastian Tyszkowski
Keyword(s):  
Normal Distribution ◽  
Meteorological Data ◽  
Precipitation Index ◽  
Low Flow ◽  
Monthly Precipitation ◽  
Discharge Data ◽  
Central Poland ◽  
Winter Half ◽  
Bartlett’S Test ◽  
Standardised Precipitation Index

Abstract The article presents the results of research into the transformation of series of hydro-meteorological data for determining dry periods with the Standardised Precipitation Index (SPI) and the Standardised Discharge Index (SDI). Time series from eight precipitation stations and five series of river discharge data in Eastern Kujawy (central Poland) were analysed for 1951–2010. The frequency distribution of the series for their convergence with the normal distribution was tested with the Shapiro–Wilk test and homogeneity with the Bartlett's test. The transformation of the series was done with the Box–Cox technique, which made it possible to homogenise the series in terms of variance. In Poland, the technique has never been used to determine the SPI. After the transformation the distributions of virtually all series complied with the normal distribution and were homogeneous. Moreover, a statistically significant correlation between the δ transformation parameter and the skewness of the series of monthly precipitation was observed. It was similar for the series of mean monthly discharges in the winter half-year and the hydrological year. The analysis indicates an alternate occurrence of dry and wet periods both in case of precipitation and run-offs. Drought periods coincided with low flow periods. Thus, the fluctuations tend to affect the development of agriculture more than long-term ones.

scholarly journals Enhancing the Quality of Blended Learning through Six Sigma Methodologies

2015 ◽  
Vol 2 (1) ◽  
pp. 36-39
Author(s):  
C.R. Rinu Vasanth ◽  
P. Vignesh ◽  
R. Swapna Kuamri
Keyword(s):  
Blended Learning ◽  
Six Sigma ◽  
Sampling Technique ◽  
Extensive Literature ◽  
Internet Connectivity ◽  
Bartlett’S Test ◽  
Current Scenario ◽  
Six Sigma Methodology ◽  
The Impact

In the current scenario quality control became mandatory for all the sectors .This study is intended to examine the impact of internet facilities on students’ performance through a Blended Learning as a medium in an academic institution. It was examined, how the Blended Learning encompasses a variety of tools to create flexible, rich learning environments that stimulate learners and maximizes the potential for learning? Another objective is Application of Six Sigma methodology in this study is to improve the medium of learning i.e. internet connectivity through a set of procedures in an effective way. Six Sigma can be again viewed as a discipline or an approach driven by data and methodology for eliminating defects in any process- from manufacturing to transactional and from product to service.Keeping the aforesaid two objectives in mind, data was collected from a sample of 119 students residing in various hostel blocks using stratified random sampling technique. Questionnaire was developed after an extensive literature review to measure the impact of internet connectivity in Blended Learning of the students. The questionnaire to measure was based on the model developed by Shawn M. Glynn (2011).The scale was developed by referring to previous models developed by various authors to measure the impact of internet connectivity in the Blended Learning of the students. The statistical analysis used was reliability statistics, KMO, Bartlett’s test and Factor Analysis. The data was analyzed by SPSS version 20). We observed that application of Six Sigma methodology is useful to improve the medium of learning.DOI: http://dx.doi.org/10.3126/ijssm.v2i1.11520     Int. J. Soc. Sci. Manage. Vol-2, issue-1: 36-39 

scholarly journals Developing instrument of academic potential test analogy verbal ability for undergraduate students

2021 ◽  
Vol 15 (2) ◽  
pp. 234-241
Author(s):  
Efi Septianingsih ◽  
Mohammad Adam Jerusalem
Keyword(s):  
Undergraduate Students ◽  
Verbal Ability ◽  
Sampling Technique ◽  
Test Reliability ◽  
Bartlett’S Test ◽  
Verbal Analogies ◽  
Academic Potential ◽  
Potential Test

The paper aims to develop the instrument about analogy test to measure the level of intelligence of undergraduate students. Determination of the number of samples is done by purposive sampling technique. This instrument is analyzed by factor analysis. Of the 15 items that will be used to develop the academic potential test instrument for verbal analogies, 4 analysis factors. The formation of these 4 factors is from Eigenvalues greater than 1 so that there are only 4 factors that fulfill the requirements. Furthermore, 15 items of the tested instrument to 91 undergraduate student respondents obtained 2 items of invalid instrument with correlation coefficient ≤0.3, Kaiser-Meyer-Olkin (KMO) and Bartlett's test amounted to 0.785 with p 0.05. Trial results from the results of the trial results obtained that the average validity of the questions is 96.8%. Test reliability was analyzed using the Alpha (α) formula of Cronbach. The calculation is done using the help of the IBM SPSS version 22.0 Windows program and the coefficient of 0.806 is obtained. Based on the results of the research, it can be concluded that the quality of the developed instrument items has been valid and reliable.

scholarly journals The economics the correlation issues in EU-28

2016 ◽  
Vol 5 (1-2) ◽  
pp. 77-82
Author(s):  
Yaser Mueeth A. Alkahtani ◽  
Zoltán László Szabó ◽  
Gan Quan
Keyword(s):  
Social Protection ◽  
Purchase Power Parity ◽  
Strong Correlations ◽  
Power Parity ◽  
Member States ◽  
Average Value ◽  
Bartlett’S Test ◽  
Statistical Program ◽  
The Eu

In this case study the analyses focus on the some correlation compares among EU-28 member states. Also the analyses focus on the wide side overview for the EU-28 member states using eight variances of three principal components for EU-28. The economic growing rate of EU-28 member states concerning some economic issues as GDP growing rate, employment, unemployment accompanying with social protection and government debt, price fluctuating, purchase power parity of consumers and also probably lifelong learning. The eight numbers according to each variance give the average value of KMO, which shows in the first line of T able T. KMO and Bartlett's Test, namely 0.628. In this case all of other variances expect RisPov2014 have strong correlations with themselves. The LLeam2014 has the strongest correlations by value of 0.767 (76%), also the GovDebt2014 has strong one, by 0.744 (74%), HICPan2014 has 0.731 (73%), the GDPcap2014 has value of 0.706 (70.6%). This SPSS statistical program can help to make clear overview for the correlations and differences among EU-28 member states from different issues and approaches, as variances. Also it is important, when the researchers choose these variances; they should know that the correlations among variances based on the principle components. These last one can select variances into different components, which mostly can explain the role and importance of each variance.

scholarly journals Oral Impact on Daily Performance (OIDP) scale for use in Sri Lankan Adolescents: a cross sectional modification and validation study

2020 ◽  
Author(s):  
Uttara Amilani ◽  
Prasanna Jayasekara ◽  
Irosha R Perera ◽  
Hannah E Carter ◽  
Sameera Senanayake ◽  
...  
Keyword(s):  
Oral Health ◽  
Sri Lanka ◽  
Cultural Adaptation ◽  
Concurrent Validity ◽  
Stage Ii ◽  
Sri Lankan ◽  
Validity Assessment ◽  
Oral Impact ◽  
Bartlett’S Test ◽  
The Impact

Abstract Background Oral Health Related Quality of Life (OHRQoL) measures play an important role in understanding subjective patient experiences in oral health care. The Oral Impact on Daily Performance (OIDP) scale is a validated OHRQoL tool that measures the impact and extent to which an individual’s daily activities may be compromised by their oral health. The aim of this study was to modify and validate a Sinhalese version of the OIDP for use in Sri Lankan adolescents. Methods Stage I involved cultural adaptation of the tool through translation and modification. Stage II involved the exploring factor structure and validity assessment. After translation and cultural adaptation, stage II was conducted among 220 students aged 15-19 in the Gampaha district, Sri Lanka. Participants completed the modified OIDP scale along with questions on self-reported perceived oral health problems and treatment need which were used to assesses the concurrent validity of the modified OIDP scale. Factorability was assessed by inspection of correlation matrix, Kaiser-Meyer-Olkin and Bartlett's Test of Sphericity as a measure of sampling adequacy. An exploratory factor analysis was carried out using Principal Component Analysis (PCA) method and factors were rotated using the oblimin method. Results The Kaiser-Meyer-Olkin measure was 0.87 and Bartlett’s test of Sphericity was significant (p<0.001) Cronbach’s alpha was calculated as 0.88, indicating a high level of internal consistency of the modified OIDP scale. The PCA is produced two factors with Eigen values ranging from 1.12 to 4.40, explaining 70.0% of total variance. Concurrent validity was satisfactory as the OIDP score increased when the adolescents’ perceived oral health decreased. The final modified OIDP consists of eight self-reported items which assesses the impact severity of eight daily performances over past three months. Participant scores ranged from 0 to 24 out of a worst possible score of 40, and nearly 48% of the responders reported at least one impact during past three months. The most prevalent oral health impact related to chewing and enjoying foods, reported by 36.8% of respondents. Conclusion This study suggests that the modified OIDP scale has promising psychometric properties and is appropriate for use among adolescents in Sri Lanka.

scholarly journals Oral Impact on Daily Performance (OIDP) scale for use in Sri Lankan Adolescents: a cross sectional modification and validation study

2019 ◽  
Author(s):  
Uttara Amilani ◽  
Prasanna Jayasekara ◽  
Irosha R Perera ◽  
Hannah E Carter ◽  
Sameera Senanayake ◽  
...  
Keyword(s):  
Principal Component Analysis ◽  
Factor Analysis ◽  
Oral Health ◽  
Sri Lanka ◽  
Cultural Adaptation ◽  
Concurrent Validity ◽  
Principal Component ◽  
Sri Lankan ◽  
Oral Impact ◽  
Bartlett’S Test

Abstract Background Oral Health Related Quality of Life (OHRQoL) surveys play an important role in understanding subjective patient experiences in oral health care. The Oral Impact on Daily Performance (OIDP) scale is a validated OHRQoL tool that measures the impact and extent to which an individual’s daily activities may be compromised by their oral health. It is commonly used to facilitate oral health service planning. The aim of this study was to modify and validate a Sinhalese version of the OIDP for use in Sri Lankan adolescents. Methods The stage I involved cultural adaptation of the tool through translation and modification. After translation and cultural adaptation, the modified OIDP was tested on 220, 15-19 year secondary school students in the Gampaha district, Sri Lanka. The adolescents completed the modified OIDP scale along with questions on self-reported perceived oral health problems and treatment need which were used to assesses the concurrent validity of the modified OIDP scale. Stage II and III involved the exploring factor structure, validation and a reliability assessment. Factorability was assessed by inspection of correlation matrix and Kaiser-Meyer-Olkin and Bartlett's Test of Sphericity tests as a measure of sampling adequacy. An exploratory factor analysis was carried out using Principal Component Analysis method and factors were rotated using the oblimin method. Results 220 adolescents participated in factor analysis and validation studies. The most prevalent oral health impact related to chewing and enjoying foods, reported by 36.8% of respondents The Kaiser-Meyer-Olkin measure was 0.87 and Bartlett’s test of Sphericity was significant (p<0.001) Cronbach’s alpha was calculated as 0.88, indicating a high level of internal consistency. The principal component analysis produced two factors with Eigen values ranging from 1.12 to 4.40, explaining 70.0% of total variance. Concurrent validity was satisfactory as the OIDP score increased when the adolescents’ perceived oral health decreased.Conclusion This study showed that the modified OIDP scale is applicable for use among adolescents in Sri Lanka. It has promising psychometric properties but further research is required to use this tool in other cohorts.

FACTORS DETERMINING THE DEMAND FOR AFFORDABLE HOUSING

2018 ◽  
Vol 16 ◽  
Author(s):  
Xin Ying Lim ◽  
Abdul Lateef Olanrewaju ◽  
Seong Yeow Tan ◽  
Jia En Lee
Keyword(s):  
Factor Analysis ◽  
Data Collection ◽  
Affordable Housing ◽  
Housing Prices ◽  
Statistical Test ◽  
Crime Rates ◽  
Survey Questionnaire ◽  
Policy Makers ◽  
High Rise ◽  
Bartlett’S Test

Affordable housing has been defined as housing which is adequate in quality and location. In addition to this, it is deemed to be housing that is not so costly that it prevents its occupants from meeting their basic living needs. This study aims to develop a framework to facilitate affordable housing delivery. The data collection used was a survey questionnaire. The survey was administered to occupants within five high-rise buildings in Penang. The study also utilized a Kaiser-Meyer-Olkin measure of 0.518, and Bartlett’s test of sphericity of (x2 (210) = 10953.982, p<0.001). The two statistical test discovered that the major determinants affecting demand for affordable housing were crime rates, housing prices and down payments. The results also demonstrated that six factors were successfully constructed using a factor analysis and assigned as factors that determined the demand for affordable housing. The research will be useful to policy makers, urban planners, developers, and contractors.

Validity and Reliability of Mathematical Visual Literacy Skills Based on Avgerinou’s Vilual Literacy Index

2021 ◽  
Vol 12 (3) ◽  
pp. 1102-1121
Author(s):  
Raja Lailatul Zuraida Et.al
Keyword(s):  
Content Validity ◽  
Visual Literacy ◽  
Early Stage ◽  
Reliability And Validity ◽  
Principal Component ◽  
Literacy Skills ◽  
Face Validity ◽  
Validity And Reliability ◽  
Principal Component Axis ◽  
Bartlett’S Test

There is much literature on visual literacy across different fields of knowledge. Even so, generally there is a gap of literature that deals with measuring mathematical visual literacy skills. The objective of this paper is to produce empirical data on reliability and validity of mathematical visual literacy skills instrument. The development of items was based on the skills outlined Avgerinou’s VL Index (2007. The early stage in validating the instrument required researchers to seek face validity and content validity from panels of experts. Face validity was based on subjective judgements of the items. Meanwhile, content validity was determined by Content Validity Index (CVI) which is computed using Item-CVI (I-CVI) and Scale-CVI (S-CVI). Each mathematical visual literacy skills had accepted S-CVI values ranging from 0.86 to 1.00 but items with low I-CVI values were deleted. Next, construct validity and reliability was determined by using Exploratory Factor Analysis (EFA) and Cronbach’s alpha respectively. The instrument, consisting of 43 items was assessed on 428 pre-university students. Students’ responses were scored using analytical rubric developed by researchers. Using Principal Component Axis (PCA) and varimax rotation, EFA was carried out where 40 retaining items were extracted to 7 factors, representing each visual literacy skills. Kaiser-Meyer-Olkin (KMO) of 0.721, significant Bartlett’s Test of Sphericity (BTS), communalities anti images ranging between 0.308-0.721 and 0.503-0.835 respectively, 7 extracted factors explaining 53.685% of the total variance, factor loadings of ±0.520 and more, and overall Cronbach’s alphas of instrument recorded at 0.82, explained the complete validity and reliability of the instrument.

The Determinant of Student Satisfaction in Academic and Administrative Services in Private Universities

2021 ◽  
pp. 1534-1551
Author(s):  
Benjamin Ghansah ◽  
Juliana Serwaa Andoh ◽  
Patrick Gbagonah ◽  
Joy Nana Okogun-Odompley
Keyword(s):  
Student Satisfaction ◽  
Classroom Environment ◽  
Private Universities ◽  
Student Support ◽  
Descriptive Statistics ◽  
Teaching Staff ◽  
Administrative Services ◽  
Bartlett’S Test ◽  
Quantitative Sample ◽  
The University

Students are the primary stakeholders of the university, so the article evaluated the factors that influence student satisfaction in the university. The study employed descriptive statistics and one sample t-test was used to analyse the data. Reliability test was also done using Cronbach's Alpha and Kaiser-Meyer-Olkin Measure (KMO) of Sampling Adequacy and Bartlett's Test of Sphericity. A quantitative sample of 1,750 students was drawn from seven (7) selected universities in Tema, Ghana and two hundred and fifty (250) questionnaires were distributed to each university. The findings highlighted various levels of satisfaction. It was observed that all the factors such as classroom environment, textbook and tuition fees, student support facilities, business procedures, relationship with teaching staff, knowledgeable and responsive faculty, staff helpfulness, feedback, and class sizes drives student satisfaction. The paper attempts to develop insights into dimension of student satisfaction in academic and administrative services in private universities in the Tema metropolis.

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