Campbell MK, Thomson S, Ramsay CR, MacLennan GS, Grimshaw JM: Sample size calculator for cluster randomised trials. Computers in Biology and Medicine. 2004, 34: 113-125. 10.1016/S0010-4825(03)00039-8. Article PubMed Google Scholar Donner A, Birkett N, Buck C: Randomization by cluster:...
Using the Raosoft sample size online calculator (http://www.raosoft.com/samplesize.html), a minimum sample size of 187 is needed to achieve a 6% margin of error, 90% confidence level, Sunway University and Sunway College population size of 22,000, and a 50% response distribution. Ethical ...
Power calculations were conducted using the mRnd online calculator to identify the effect size (odds ratio, OR) in both directions that could be detected based on the variance explained by the instruments and the sample sizes available [44]. Due to the absence of effect allele frequencies for ...
Effect Size Calculator—Cohen’s d, Cohen’s h, Phi(φ), R Squared, Eta Squared. Available online: https://www.statskingdom.com/effect-size-calculator.html (accessed on 12 December 2023). Zieliński, G.; Matysik-Woźniak, A.; Baszczowski, M.; Rapa, M.; Ginszt, M.; Pająk, ...
Required sample size of the initial survey was estimated with the freely available QualtricsXMSample Size Calculator (Provo, UT, USA) considering that, according to market research, 4.74% of the Spanish population between 15 and 64 years of age uses CLs, that is, about 1,500,000 wearers. ...
Body mass index (BMI) was calculated using the Center for Disease Control and Prevention (CDC) calculator; overweight was determined based on percentile ranks of the CDC growth charts, which are age and sex specific [40]. Socioeconomic status was measured using the Family Affluence Scale III (...
(p> 0.05). For boys, none of the studied factors (age, place of residence, BMI, physical activity level) was statistically significant determinant of food preferences (p< 0.05), while for girls, all of them were statistically significant determinants (p> 0.05). All the assessed factors (...
Food-related GHG emissions were calculated by multiplying the total weight of each food category in kilograms by the associated GHG emissions factor for that category in the Cool Food Calculator. Composite GHG emissions factors were calculated for the grain, nut and seed, and oil categories by ...