نتایج جستجو برای: stratified random sampling

تعداد نتایج: 494458  

2017
Julia Torquati Helen Raikes Catherine Huddleston-Casas Julia C. Torquati Catherine A. Huddleston-Casas

The purposes of this study were to present a conceptual model for selection into the early childhood profession and to test the model using contemporaneous assessments. A stratified random sample of center-based child care providers in 4 Midwestern states (n = 964) participated in a telephone interview, and 223 were also assessed with the Early Childhood Environment Rating Scale—Revised or the ...

2017
Patrice Meunier Geoffrey Spedding Geoffrey R. Spedding

Journal: :CoRR 2016
Niranjan Kamat Arnab Nandi

Supporting sampling in the presence of joins is an important problem in data analysis. Pushing down the sampling operator through both sides of the join is inherently challenging due to data skew and correlation issues between output tuples. Joining simple random samples of base relations typically leads to results that are non-random. Current solutions to this problem perform biased sampling o...

2016
Florentin Smarandache Sachin Malik Neeraj Kumar Rajesh Singh

2007
Witold Charatonik Supratik Mukhopadhyay Andreas Podelski

Journal: :Informatica (Slovenia) 2010
Yao-Ming Chu Li-Ling Hsu Jung-Tsung Yang

In the present study, we explore the analyses of coping strategy for IT digital divide on the elementary campus. The questionnaire was distributed by stratified random sampling. The cases included 39 schools and 150 teachers. The study adopted the questionnaire of “SWOT Strategic Analysis for Digital Divide” to investigate the digital learning environment on campus and to understand teachers’ o...

2016
Matjaž Duh Jerneja Herzog

Modern visual arts education enables student’s permanent creative expression, while art appreciation plays an equally important role. This article presents the results of a study that monitored the level of art appreciation abilities of 10-year-old primary school students from north-eastern Slovenia utilizing a sample of 1,429 students (n=1,429). The study explored whether there are differences...

نمودار تعداد نتایج جستجو در هر سال

با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید