نتایج جستجو برای: students t tests

تعداد نتایج: 1307377  

Journal: :Nihon eiseigaku zasshi. Japanese journal of hygiene 1998
T Mori T Hirai T Tomiyama K Iida S Miyakoshi K Sato Y Kusaka M Yanagihara K Ueda

We investigated mercury sensitization in relation to urinary and hair mercury concentrations. Patch tests were performed on 215 medical students and these tests demonstrated that 28 students were mercury-sensitized (13.0%). Life-styles were studied by questionnaire in 26 of the mercury sensitized students and 46 of the non-sensitized subjects. Urinary mercury concentrations were measured in 25 ...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه فردوسی مشهد - دانشکده ادبیات و علوم انسانی دکتر علی شریعتی 1392

just as motivation is important in sla research, demotivation constitutes an important factor, too. there are many studies done on demotivation and burnout of teachers. many of these studies have been conducted on one or two aspects of english instruction. consequently, there are few studies which have been done on more than two aspects of english teaching. the aim of this study is to find out ...

Journal: :Journal of dental hygiene : JDH 2009
Janice P DeWald Eric S Solomon

PURPOSE The purpose of this study was to determine changes in students' cross-cultural effectiveness using the Cross-Cultural Adaptability Inventory (CCAI). The inventory assessed strengths and weaknesses in 4 skill areas: Emotional Resilience, Flexibility/Openness, Perceptual Acuity, and Personal Autonomy. METHODS The CCAI was administered to 30 dental hygiene students during Orientation. Ag...

Journal: :Academic medicine : journal of the Association of American Medical Colleges 1999
J A Jonassen M P Pugnaire K Mazor M B Regan E W Jacobson W Gammon D G Doepel A J Cohen

PURPOSE To determine whether participation in an intensive domestic violence interclerkship (DVI) improved the knowledge, attitudes, and skills of two successive cohorts of students at the University of Massachusetts Medical School. METHOD The authors measured the knowledge, attitudes, and skills pertaining to domestic violence of third-year students in the classes of 1997 and 1998 using a va...

Journal: :Journal of clinical nursing 2011
Mari Wolff Skaalvik Hans Ketil Normann Nils Henriksen

AIM AND OBJECTIVE To measure nursing students' experiences and satisfaction with their clinical learning environments. The primary interest was to compare the results between students with respect to clinical practice in nursing homes and hospital wards. BACKGROUND Clinical learning environments are important for the learning processes of nursing students and for preferences for future workpl...

1999
Hsin-kai Wu Joseph S. Krajcik Elliot Soloway

Many students have difficulty learning symbolic and molecular chemical representations. This study investigates how students develop their understanding of chemical representations with the aid of a visualizing tool, eChem, that allows them to build molecular models and view multiple representations simultaneously. Multiple sources of data were collected with the participation of 71 eleventh gr...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه پیام نور - دانشگاه پیام نور استان تهران - دانشکده علوم انسانی 1390

this study attempted to explore if teaching english collocations through two different modes of awareness-raising and input flooding has any possible differential effect on immediate retention as well as retention in a delayed assessment. it also compared the possible differential effect of teaching english collocations implicitly and explicitly on actively using the items in writing. m...

Journal: :تحقیقات نظام سلامت 0
حمید پیروی کارشناس ارشد روان شناسی، مرکز مشاوره دانشجویی، دانشگاه تهران، تهران، ایران. احمد حاجبی استادیار، گروه روان شناسی، دانشکده بهداشت، دانشگاه علوم پزشکی ایران، تهران، ایران. لیلی پناغی متخصص پزشکی اجتماعی، انستیتو روان پزشکی تهران، مرکز تحقیقات بهداشت روان، تهران، ایران.

background: this study sought the relationship between social support, mental health and demographic factors in new students of tehran university (2005-06). methods: this cross-sectional descriptive study enrolled 2916 university students. subjects were evaluated using demographic questionnaire, general health questionnaire-12 and social support scale. statistical analysis was performed by anov...

Journal: :BMC Medical Education 2006
Gustavo Duque Adam Finkelstein Ayanna Roberts Diana Tabatabai Susan L Gold Laura R Winer

BACKGROUND Electronic evaluation portfolios may play a role in learning and evaluation in clinical settings and may complement other traditional evaluation methods (bedside evaluations, written exams and tutor-led evaluations). METHODS 133 third-year medical students used the McGill Electronic Evaluation Portfolio (MEEP) during their one-month clerkship rotation in Geriatric Medicine between ...

Journal: :Archives of family medicine 1996
C E Werch D M Anzalone L M Brokiewicz J Felker J M Carlson E A Castellon-Vogel

OBJECTIVE To examine the effectiveness of a brief, school-based intervention for preventing alcohol use. DESIGN AND SETTING Randomized, control trial assigning inner-city public school students to an intervention program or a comparison program. PARTICIPANTS Sixth, seventh, and eighth grade students in Jacksonville, Fla (N=104). INTERVENTIONS Students assigned to the intervention program ...

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