نتایج جستجو برای: روش ancova

تعداد نتایج: 372673  

Journal: :International journal of clinical pharmacology and therapeutics 1997
T J Cleophas

BACKGROUND In crossover clinical trials comparing completely different treatments, patients tend to fall into different populations: those who respond better to treatment 1 and those who respond better to treatment 2. The correlation between treatment response in such trials is negative. The current ANCOVA analysis for crossover studies does not allow for correlations being negative, and is the...

Journal: :Medical teacher 2014
Laurie J Morrison Edmund Lorens Glen Bandiera W Conrad Liles Liesly Lee Robert Hyland Heather Mcdonald-Blumer Johane P Allard Daniel M Panisko E Jenny Heathcote Wendy Levinson

PURPOSE To evaluate the impact of a formal mentoring program on time to academic promotion and differences in gender-based outcomes. METHODS Comparisons of time to promotion (i) before and after implementation of a formal mentoring program and (ii) between mentored and non-mentored faculty matched for covariates. Using paired-samples t-testing and mixed repeated measures ANCOVA, we explored t...

Journal: :Neuropsychology 2015
Joanna Jacobus Lindsay M Squeglia M Alejandra Infante Norma Castro Ty Brumback Alejandro D Meruelo Susan F Tapert

OBJECTIVE The effect of adolescent marijuana use on brain development remains unclear despite relaxing legal restrictions, decreased perceived harm, and increasing use rates among youth. The aim of this 3-year prospective study was to evaluate the long-term neurocognitive effects of adolescent marijuana use. METHOD Adolescent marijuana users with concomitant alcohol use (MJ + ALC, n = 49) and...

2015
Rand R. Wilcox

For two independent groups, let Mj(x) be some conditional measure of location for the jth group associated with some random variable Y , given that some covariate X = x. When Mj(x) is a robust measure of location, or even some conditional quantile of Y , given X, methods have been proposed and studied that are aimed at testing H0: M1(x) = M2(x) that deal with curvature in a flexible manner. In ...

2017
Anna Mulasso Laura Argiolu Mattia Roppolo Danny Azucar Emanuela Rabaglietti

Frailty increases individual vulnerability to external stressors and involves high risk for adverse geriatric outcomes. To date, few studies have addressed the role of emotion perception and its association with frailty in aged populations. This cross-sectional study aimed to explore whether a significant association between frailty and emotional experience exists in a sample of Italian communi...

Journal: : 2022

هدف: پژوهش حاضر با هدف ساخت برنامه داربست‌سازی انگیزشی و تعیین اثربخشی آن بر جهت‌گیری‌های هدفی ارزیابی‌های شناختیوالدین انجام شد. روش: پس از طراحی آموزشی داربست سازی اساس نقشه نگاری مداخله، به منظور بررسی شبه‌آزمایشی طرح پیش‌آزمون ـ پس‌آزمون همراه پیگیری گروه گواه استفاده جامعه آماری شامل تمامی والدین ­دانش‌آموزان پایه هشتم منطقة 4 آموزش پرورش شهر تهران نمونة نیز 30 مادر دارای فرزند کلاس هفتم ب...

Journal: : 2022

هدف: آینده­ نگری مجموعه ­ای از توانایی­ های شناختی است. که شامل پیش­ بینی حالت­ ممکن آینده و نیازهای خود این مهارت برای برنامه­ ریزی، غلبه بر موانع رسیدن به موفقیت افراد کمک می­کند. یکی جدیدترین ابزارهای سنجش توانایی تفکر آینده­نگر در کودکان، مقیاس کودکان (مازاچووسکای مهی، 2020) است ویژگی­ روان­سنجی آن استفاده جمعیت ایرانی مورد مطالعه قرار نگرفته روش: روش پژوهش حاضر توصیفی مقطعی بود. تعداد 200 ...

Journal: :Industrial health 2004
Misuzu Watanabe Yasuhiro Akamatsu Hikari Furui Teruyuki Tomita Takemasa Watanabe Fumio Kobayashi

To clarify the effects of changing shift schedules from a full-day to a half-day before a night shift, 12 single nurses and 18 married nurses with children that engaged in night shift work in a Japanese hospital were investigated. Subjects worked 2 different shift patterns consisting of a night shift after a half-day shift (HF-N) and a night shift after a day shift (D-N). Physical activity leve...

Journal: :American journal of community psychology 2002
Holly Lizotte Angelique Thomas M Reischl William S Davidson

The aim of this research is to examine the effects of an intervention, focusing on the development of political empowerment, with university students. Undergraduates were randomly assigned to one of two conditions (intervention/ control) and were surveyed at two time points: before implementation of the intervention and upon completion of the intervention (or the equivalent two semester period)...

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