نتایج جستجو برای: t test

تعداد نتایج: 1424721  

Journal: :Investigacion y educacion en enfermeria 2014
Mariana de Oliveira Fonseca-Machado Vanderlei José Haas Juliana Cristina dos Santos Monteiro Flávia Gomes-Sponholz

OBJECTIVE Identifying the knowledge about breastfeeding of the nurses of the Family Health Program, and possible associations between the knowledge and personal, professional and self evaluation aspects. METHODOLOGY Observational and cross-sectional study conducted in family health units of a city in Minas Gerais, Brazil, with 85 nursing professionals. Data were collected through a questionna...

2016
Johnette Caulfield Jay Caulfield

Under what conditions are graduate students most likely to learn? How do we, as teachers, best create those conditions? The answer to these questions was the focus of this study whereby 91 masters’ students identified learning tasks that were most and least engaging. A model utilizing affective, behavioral and cognitive attributes was developed to measure graduate student engagement in learning...

2013
E Scott Sills Liubomir Chiriac Denis Vaughan Christopher A Jones Shala A Salem

BACKGROUND This investigation evaluated standardized process of care data collected on selected hospitals serving a remote rural section of westernmost North Carolina. METHODS Centers for Medicare and Medicaid Services data were analyzed retrospectively for multiple clinical parameters at Fannin Regional Hospital, Murphy Medical Center, and Union General Hospital. Data were analyzed by paired...

2017
Tomislav Lauc Enita Nakaš Melina Latić-Dautović Vildana Džemidžić Alisa Tiro Ivana Rupić Mirjana Kostić Ivan Galić

Objective. To evaluate the difference between chronological and dental age, calculated by Willems and Cameriere methods, in various skeletal patterns according to Steiner's ANB Classification. Methods. This retrospective cross-sectional study comprised the sample of 776 participants aged between 7 and 15 years (368 males and 408 females). For each participant, panoramic images (OPT) and laterol...

Journal: :The Plant cell 2015
Siobhan M Brady Meike Burow Wolfgang Busch Örjan Carlborg Katherine J Denby Jane Glazebrook Eric S Hamilton Stacey L Harmer Elizabeth S Haswell Julin N Maloof Nathan M Springer Daniel J Kliebenstein

Plant biology is rapidly entering an era where we have the ability to conduct intricate studies that investigate how a plant interacts with the entirety of its environment. This requires complex, large studies to measure how plant genotypes simultaneously interact with a diverse array of environmental stimuli. Successful interpretation of the results from these studies requires us to transition...

2018
Wasana Hongkan Rajin Arora Roungtiva Muenpa Parinya Chamnan

Objectives To examine the perception of educational environment among clinical year students in Thailand using Dundee ready education environment measure (DREEM) and identify factors associated with the DREEM scores. Methods A total of 2,467 fourth- to sixth-year students from 34 teaching hospitals nationwide responded to a Thai version of DREEM questionnaire. Data on each student's sex, year...

Journal: :Revista de saude publica 2003
João A da Rosa Hernany H G Justino José M S Barata

The objective of the study was to evaluate the measurements of eggshells from three colonies of P. megistus, two from the lab and one from a sylvatic habitat. Fifty eggshells from each colony were measured with the use of a stereoscopic microscope and the Qwin image analysis system,. The statistical analysis was performed using unpaired t-test in INSTAT program. The length, width and diameter o...

2004
Andreas Christmann

The behaviour of group sequential tests in the two-sample problem is investigated if one replaces the classical non-robust estimators in the t-test statistic by modern robust estimators of location and scale. Hampel's 3-part redescending M-estimator 25A used in the Princeton study and the robust scale estimators length of the shortest half proposed by Rousseeuw & Leroy and Q proposed by Roussee...

Journal: :Journal of oral science 2011
Hossain Neamatollahi Masoumeh Ebrahimi Maryam Talebi Mana H Ardabili Keiwan Kondori

To establish efficient methods for self-prevention of oral diseases, assessment of dental health behavior and knowledge in various social classes is necessary. The main purpose of this study was to determine the major differences in oral health knowledge and behavior in a group of Iranian pre-university students. In this cross-sectional study, 591 pre-university students from different regions ...

2012
Sherine Gaber Soha Hassan Abdel-Latif

BACKGROUND In Egypt, many pesticides are used to control pests in agricultural farms. Our study aimed to investigate knowledge and behaviors of farmers related to pesticide use and their relation to educational level and health locus of control. Health locus of control is the degree to which individuals believe that their health is controlled by internal or external factors. METHODS A cross-s...

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