Sentences with phrase «analyses of variance studies»

Exposing stats illusions Shalizi warns «causal - sounding phrases... encourage confusion» in many analyses of variance studies (where «due to,» «explained by,» «account for» don't have ordinary meanings).

Not exact matches

If large variances exist between an investor's independent analysis and a company's depiction, further study should be done to either reconcile differences or confirm a company's mischaracterization of its customer base.

We compared socio - demographic and pregnancy - related characteristics among the three study groups using chi - square tests for categorical variables, analysis of variance (ANOVA) for normally distributed continuous variables and the nonparametric Kruskal - Wallis test for continuous variables that were not normally distributed.

In their analysis of data from 1423 Swedish women who were studied from 2.5 to 12 mo postpartum, lactation score was significantly associated with weight retention, but it explained little of the variance in PPWR.

The authors note that while the sample size of the meta - analyses was large (123,132 to 260,861 participants in different studies), they used only GWAS summary statistics and can not estimate all genetic variance factors; some studies also used different methodologies.

A 2005 meta - analysis study on BMR * showed that when controlling all factors of metabolic rate, there is still a 26 % unknown variance between people.

Russ makes three arguments: 1) A recent study that compared grit scores among fraternal and identical twins suggests that grit may be heritable to a large degree, which would make it unrealistic to expect schools or others to be able to alter it; 2) The twin study as well as a meta - analysis of grit research found that grit only explains about 2 - 3 % of the variance in achievement scores, which Russ thinks makes it a poor predictor of other outcomes; and 3) The meta - analysis suggests that grit may be highly correlated with conscientiousness, one of the Big 5 personality traits that psychologists have been studying for a long time.

We used a 2 - way analysis of variance (ANOVA) and Tukey honestly significant difference (HSD) tests to determine the effects of sex and reproductive status (treatment = intact versus sterilized) on the areas of the home ranges occupied by our study animals during the breeding and nonbreeding seasons.

In this study, the potential predictability of seasonal variations in extratropical storm activity is investigated using analysis of variance to provide quantitative and geographical observational evidence indicative of whether it may be possible to predict storm activity on the seasonal timescale.

He also challenges you to look at the level of variance in all 200 runs of the study and do your own analysis.

Given the new sample in Study 4, maximum likelihood analyses with Varimax rotation forced 5 factors which accounted for 53 % of the sample variance.

To address the second research question in Study 3, an exploratory factor analyses with a maximum likelihood method with Varimax rotation indicated 5 factors that accounted for 47 % of the sample variance.

We performed comparisons of means using analysis of variance, with planned post hoc analyses by the Tukey honestly significantly different test; effect sizes were obtained using mean differences with associated 95 % confidence intervals (CIs) and also calculated using Cohen d for purposes of comparability with related studies.