The use of repeated measures, where the same subjects are tested under a number of conditions, has numerous practical and statistical benefits. For one thing it reduces the error variance caused by between-group individual differences, however, this reduction of error comes at a price because repeated measures designs potentially introduce covariation between experimental conditions (this is be...

abstract background: pain is the common complication after a surgery. the aim of this study was to evaluate the effect of aromatherapy with rosa damascena mill. on the postoperative pain in children. materials and methods: in a double-blind, placebo-controlled clinical trial, we selected 64 children of 3–6 years of age through convenient sampling and divided them randomly into two groups. patie...

the aim of this study was to compare the effects of random and blocked practices with respect to the changes in generalized motor program (gmp) and parameter on acquisition, retention and transfer of table tennis service. for this purpose, 32 subjects were randomly assigned to four groups (8 subjects each group). in the first two groups, gmp changed with blocked and random arrangements while in...

In this article we consider the Two-Way ANOVA model with unequal cell frequencies without the assumption of equal error variances. By taking the generalized approach to finding p-values, classical F-tests for no interaction effects and equal main effects are extended under heteroscedasticity. The generalized Ftests developed in this article can be utilized in significance testing or in fixed le...

To evaluate compound-related effects on the growth of rodents, body weight and food consumption data are commonly collected either weekly or biweekly in toxicology studies. Body weight gain, food consumption relative to body weight, and efficiency of food utilization can be derived from body weight and food consumption for each animal in an attempt to better understand the compound-related effe...

Four cohorts of 40 subjects each were randomly assigned to 1 of 10 treatment conditions utilizing EMG feedback, cognitive monitoring training, systematic desensitization, high expectancy discussion group, or waiting list controls either in isolation or in various combinations. A three-way ANOVA for repeated measures indicated that significant anxiety reductions were experienced in all noncontro...

Quantifying changes in ammonia and ethanol in blood and body fluid assays in response to food is cumbersome. We used breath analysis of ammonia, ethanol, hydrogen (an accepted standard of gut transit) and acetone to investigate gastrointestinal physiology. In 30 healthy participants, we measured each metabolite serially over 6 h in control and high protein trials. Two-way repeated measures ANOV...

Repeated measures ANOVA can refer to many different types of analysis. Specifically, this vague term can refer to conventional tests of significance, one of three univariate solutions with adjusted degrees of freedom, two different types of multivariate statistic, or approaches that combine univariate and multivariate tests. Accordingly, it is argued that, by only reporting probability values a...

OBJECTIVE The present study aimed to compare the effectiveness of metacognitive therapy (MCT) and cognitive-behavior therapy (CBT) in treating Iranian patients with major depressive disorder (MDD). METHODS Thirty three outpatients meeting DSM-IV-TR criteria for MDD without any other axis I and II disorders were randomly assigned to one of three treatment conditions, i.e. MCT, CBT and pharmaco...