This study aims to review studies on virtual learning environments in Turkey through the content analysis method. 63 studies consisting of thesis, articles and proceedings published in Turkish and English between 1996-2014 years were analyzed. It was observed that "Second Life" was mostly preferred as the virtual learning environment.…

A classroom exercise for undergraduate and beginning graduate students that takes about one class period is proposed and discussed. It is an easy, interesting exercise that demonstrates important aspects of sampling techniques (sample amount, particle size, and the representativeness of the sample in relation to the bulk material). The exercise…

This report describes patterns of continuity and change over time in four areas of the transition to adulthood among young adults as measured 2 years after their senior year of high school. The four areas are postsecondary enrollment, labor force roles, family formation, and civic engagement through voting or military service. The analysis…

A new line of research has emerged that examines the prevalence rates of mixed methods within disciplines in the social/behavioral sciences. Research presented in this article is unique in that it examines prevalence rates across multiple disciplines using an established cross-disciplinary classification scheme. Results indicate that there are…

Presents an experiment on the sampling process including sample size and particle size. (YDS)

Reviews the research on sampling for daily newspapers and explores various sampling techniques for weekly newspapers. Contrasts different sample types to assess their utility in representing weekly newspaper content. Uses five content measures and tests three sampling techniques: simple random sampling and two "constructed year" samples,…

Provides an introduction to sampling, determination of sample size, and selection of the actual sample that would be useful for librarians conducting research and evaluation studies. Highlights include sampling method, sampling error, confidence level, and microcomputer software packages that help determine sample size. (Contains 26 references.)…

There is a growing body of evidence indicating that people often overestimate the similarity between characteristics of random samples and those of the populations from which they are drawn. This paper: reviews studies that have attempted to determine whether the basic heuristic employed in thinking about random samples is passive and descriptive…

Provides data defensibility guidance for field samplers, laboratory personnel and project managers, and a checklist for planning and verification stages of the data generation process. (MDH)

Discusses a technique for estimating sample size that does not require an a priori definition of desired precision. Presents five modifications that make the method easier to use and reduce the probability of estimating a larger sample size than necessary. The technique can guide the design of environmental sampling programs. (Contains 31…

A study assessed the selection techniques used to secure focus group respondents at one site as part of a larger study to determine what viewers learned from the 1992 Presidential Debates. A two-stage random sampling technique was developed to select focus group respondents from the 224,041 registered voters in Syracuse, New York. The random…

Investigates the role of causal mechanism, sampling method, and sample size in causal reasoning of 216 sixth and ninth grade and college students. Subjects did not base judgments solely on covariation. Age differences were negligible when covariation was absent and striking when covariation was present. (RJC)

This document provides a summary and evaluation of the methodological procedures and results of the full-scale implementation of the Beginning Postsecondary Student Longitudinal Study Second Follow-up, 1990-94 (BPS:90/94). The study was conducted for the National Center for Education Statistics by Research Triangle Institute with the assistance of…

Provides a physical description of semivolatile organic compounds (SVOCs), both in terms of their characteristic nature in the atmosphere and the processes which control their deposition. Contains a summary of the requirements for a full assessment of atmospheric SVOCs and their deposition. (LZ)

A normally distributed data set of 1,000 values--ranging from 50 to 150, with a mean of 50 and a standard deviation of 20--was created in order to evaluate the bootstrap method of repeated random sampling. Nine bootstrap samples of N=10 and nine more bootstrap samples of N=25 were randomly selected. One thousand random samples were selected from…