نتایج جستجو برای: روش ancova

تعداد نتایج: 372673  

Journal: :Journal of occupational health 2015
Yuko Nakagawa Akiomi Inoue Norito Kawakami Kanami Tsuno Kimiko Tomioka Mayuko Nakanishi Kosuke Mafune Hisanori Hiro

OBJECTIVE The aim of the present study was to investigate the association of one-year change in organizational justice (i.e., procedural justice and interactional justice) with job performance in Japanese employees. METHODS This study surveyed 425 men and 683 women from a manufacturing company in Japan. Self-administered questionnaires, including the Organizational Justice Questionnaire (OJQ)...

2008
Mary O. Esere Joshua A. Omotosho

This study investigated the effectiveness of Rational Emotive Behaviour Therapy in improving retirees’ attitude towards political participation. Twenty four retirees (mean age = 55.50 years) within Ilorin, Nigeria participated in the study. They were randomly assigned to one treatment and one control groups. A validated instrument termed “Retirees’ Attitude towards Political Participation Quest...

2015
Bruce A. Schneider Meital Avivi-Reich Mindaugas Mozuraitis

A number of statistical textbooks recommend using an analysis of covariance (ANCOVA) to control for the effects of extraneous factors that might influence the dependent measure of interest. However, it is not generally recognized that serious problems of interpretation can arise when the design contains comparisons of participants sampled from different populations (classification designs). Des...

Journal: :Chemical & pharmaceutical bulletin 2002
Sumie Yoshioka Yukio Aso Shigeo Kojima Nicholas F Cappuccino

Stability data were generated by the Monte Carlo method, and batch-to-batch variability was evaluated by analysis of differences in slope and intercept according to the analysis of covariance (ANCOVA) approach recommended in the FDA Guidance. Using the same generated data, batch-to-batch variability was also evaluated by assessing the equivalence of shelf lives estimated for individual batches ...

Journal: :Journal of abnormal psychology 2010
Richard E Zinbarg Satoru Suzuki Amanda A Uliaszek Alison R Lewis

Miller and Chapman (2001) argued that 1 major class of misuse of analysis of covariance (ANCOVA) or its multiple regression counterpart, analysis of partial variance (APV), arises from attempts to use an ANCOVA/APV to answer a research question that is not meaningful in the 1st place. Unfortunately, there is another misuse of ANCOVAs/APVs that arises frequently in psychopathology studies even w...

Journal: :Psychopharmacology bulletin 1998
J E Overall G Shobaki C Shivakumar J Steele

Statistical models for calculating sample sizes for controlled clinical trials often fail to take into account the negative impact that dropouts have on the power of intent-to-treat analyses. Empirically defined dropout correction coefficients are proposed to adjust sample sizes for endpoint analysis of variance (ANOVA) and analysis of covariance (ANCOVA) that have been initially calculated ass...

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