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Showing 1 to 20 of 64 for “"Chi-squared test"”.
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Calculating chi-squared test statistics for weighted histograms
A goodness of fit test statistic, in particular the chi-squared test, is commonly used to confirm whether histograms differ from a theoretical distribution. The chi-squared test is also often used to compare two histograms, such as histograms produced by experiments and simulations. This report …
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Statistical analysis of end-points in cancer clinical trials
… trials found the most common statistical test in use to be a Chi squared test of the total response rate, but a total of 21 different statistical methods were used. The various statistical tests available are reviewed, including the Mann-Whitney test and the Chi squared test for trend …
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The handling of business level textile complaints from the perspective of the quality control manager
… questionnaires (28 percent) were returned. The Chi-squared test for independence revealed that at the .05 level, no relationship existed between the number of employee-hours spent handling business customer complaints and the establishment of written guidelines for complaint resolution within …
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Predicting confusions and intelligibility of noisy speech
… mimicked human performance as measured by the Chi-squared test.
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Heat capacity measurements on manganese dibromide tetrahydrate near its Neel temperature
… The errors in ~, ~', and TN were obtained from a chi squared test for 90% probability that the true values lie within these limits. The heat capacity in the critical region of partially deuterated crystals with 1% deuterium was measured to obtain the effect of this impurity on the rounding. No …
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Missional Competencies of Christian Teachers Engaged in Public Education: A Quantitative Study
… this analysis, data was analyzed using a chi-squared test to determine if there was any statistically significant relationship between the demographic data and the missional behaviors identified. Finally, when a statistically significant relationship was identified, a linear regression …
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Health knowledge and health-risk behaviours among undergraduate students in the faculty of community and health sciences at a university in the Western Cape
… statistics, non-parametric statistical tests (Mann-Whitney U and Kruskal-Wallis tests) and the Chi-squared test were used to analyse the data
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Does Teacher Bias Increase Referral of Blacks to Special Education for a Reading Disability?
… education for a reading disability. A cross-tab, chi-squared test, and binary logistic regression were the methods used to examine the data. All data collected in the study were from school districts across the country and teacher pages via social media groups on LinkedIn and Facebook. The …
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Professors' perceptions of student readiness for college-level mathematics
… by comparing response percentages while a chi-squared test examined the difference in responses of two- and four-year college professors and conclusions were drawn. It is clear from the research that college professors feel that students are not ready for post-secondary mathematics. It seem …
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Towards a better understanding of customer lifetime value and over indebtedness
… are calculated using Hwang (2004) model and a Chi-squared test is used for the hypothesis testing of the research propositions. Based on the findings and conclusions drawn from this study, several recommendations and further future research are made.
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Analyzing the effects of human performance under stress
… clutch average is corrected for with alpha, the chi-squared test is used to examine those differences. This analysis is also performed on the quartile values for batters who were ranked according to their difference, corrected by alpha. There is no evidence to support the claim that there are …
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Rate changes In risky behavior & the role of sibling influence
… who did not have older siblings (eldest and only children). The Argys, et al. study used data collected from the first round of the National Longitudinal Survey of Youth (NLSY) '97, using responses from 9,000 participants aged 12-17 years. The present study seeks to determine if this trend …
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The effects of gender and ethnicity on students' perceptions of small-group learning in collegiate mathematics courses
… conducted a Likert-scale survey of 114 Eastern Michigan University undergraduate students who were enrolled in a cross section of mathematics courses. The data were analyzed using statistical measures such as the frequency and modes of each response, as well as by utilizing a chi-squared test in …
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Routine cranial CT before lumbar puncture in HIV positive adults presenting with seizures at Mitchells Plain Hospital in Cape Town
… variables were analysed using Pearson's Chi-squared test. Generalised linear regression was used to estimate prevalence ratios. Results 100 out of 132 patients were studied. Brain shift contraindicated an LP in 5% of patients. Patients with brain shift presented with: decreased level of …
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Užsienio prekybos prekėmis statistinė analizė /
… to the Shapiro-Wolf criterion; Pearson’s Chi squared test, compliance analysis; logistic regression model. The main results of the research were as follows: most goods were imported from China in 10-12 months of 2019. Logistic regression was performed to check the dependence of the …
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The effect of adapted musical instruments on the participation of children with severe and multiple disabilities : a mixed methods study
… measures of participation for a small sample of children with severe and multiple disabilities when using adapted rhythm instruments. The four measures of participation were: 1) on- task behavior, 2) motivational behavior - smile, 3) motivational behavior - pleasure sounds and 4) performance. Six …
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An exploration of strategies used by Malaysian secondary school teachers to promote positive behaviour: professionals’ and pupils’ perspectives
… included descriptive and inferential analysis (a chi squared test), while narrative data was analysed by using a thematic approach. Observational data was analysed manually by focusing on the frequency of target behaviour. This study proposes a Socio-ecological Model suggesting that interaction …
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Summer Credit Recovery and Middle Grade Students
… System, coded, and analyzed through quantitative testing.</p> <p>This study was guided by 8 research questions and 8 corresponding null hypotheses. Five of the null hypotheses were tested for significance using a paired sample t tests, 2 were tested using a chi square testing, and 1 was tested …
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Knowledge, attitudes and practice of patients diagnosed with diabetes regarding diabetic self-care management in intermediate Rundu hospital, Kavango east region
… The data were analysed using SPSS version 25. Chi-squared test was used to analyse the possible associations among variables. The study findings indicated that the majority of respondents were female 125 (63%) and belonged to the age group of 60 and above 76 (38.4%). Most, 91 (47%), of the …
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Knowledge, attitutes and practices of medical doctors on pharmacotherapy for smoking cessation in Khomas region, Namibia
… quantitative analysis and associations using Chi-squared test and T-test. A total of 106 doctors participated; majority (60%) were general medical practitioners, 73(69%) practiced in public facilities, 40% were of the age category 30-40 years and 99.1% were non-smokers. Out of the 71(66%) …
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