نتایج جستجو برای: research difficulties

تعداد نتایج: 1468605  

2016
Stéphane Cullati Delphine S. Courvoisier Angèle Gayet-Ageron Guy Haller Olivier Irion Thomas Agoritsas Sandrine Rudaz Thomas V. Perneger

BACKGROUND Many medical research projects encounter difficulties. The objective of this study was to assess the self-reported frequency of difficulties encountered by medical researchers while conducting research and to identify factors associated with their occurrence. METHODS The authors conducted a cross-sectional survey in 2010 among principal investigators of 996 study protocols approved...

Journal: :Learning and Individual Differences 2021

This study evaluated the relation between sixth graders' ( N = 426) teacher-rated difficulties in attention and executive function (EF) their comprehension skills. Reading was assessed with a multiple-choice task online research (ORC) problem-solving task. The analyses were controlled for gender, reading fluency nonverbal reasoning. To investigate differences students' performance tasks, skills...

Journal: :Physics Letters B 1999

Journal: :Australian Health Review 2005

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