Determining Sample Size for Research Activities.

doi:10.1177/001316447003000308

Journal Article•DOI•

Determining Sample Size for Research Activities.

21 Sep 1970-Educational and Psychological Measurement (SAGE PublicationsSage CA: Los Angeles, CA)-Vol. 30, Iss: 3, pp 607-610

About: This article is published in Educational and Psychological Measurement.The article was published on 1970-09-21. It has received 10457 citations till now. The article focuses on the topics: Sampling (statistics) & Sample size determination.

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Research Methods in Education

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Louis Cohen, Lawrence Manion, Keith Morrison¹•Institutions (1)

Manchester Metropolitan University¹

01 Jan 1980

TL;DR: In this article, the context of educational research, planning educational research and the styles of education research are discussed, along with strategies and instruments for data collection and research for data analysis.

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Abstract: Part One: The Context Of Educational Research Part Two: Planning Educational Research Part Three: Styles Of Educational Research Part Four: Strategies And Instruments For Data Collection And Researching Part Five: Data Analysis

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21,163 citations

Organizational research: Determining appropriate sample size in survey research

[...]

E Bartlett James

01 Jan 2001

TL;DR: In this article, the procedures for determining sample size for continuous and categorical variables using Cochran's (1977) formulas are described, and a table is provided that can be used to select the sample size of a research problem based on three alpha levels and a set error rate.

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Abstract: The determination of sample size is a common task for many organizational researchers. Inappropriate, inadequate, or excessive sample sizes continue to influence the quality and accuracy of research. This manuscript describes the procedures for determining sample size for continuous and categorical variables using Cochran’s (1977) formulas. A discussion and illustration of sample size formulas, including the formula for adjusting the sample size for smaller populations, is included. A table is provided that can be used to select the sample size for a research problem based on three alpha levels and a set error rate. Procedures for determining the appropriate sample size for multiple regression and factor analysis, and common issues in sample size determination are examined. Non-respondent sampling issues are addressed.

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3,170 citations

Cites methods from "Determining Sample Size for Researc..."

...The general rule relative to acceptable margins of error in educational and social research is as follows: For categorical data, 5% margin of error is acceptable, and, for continuous data, 3% margin of error is acceptable (Krejcie & Morgan, 1970)....
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...…on the scale) S = --------------------------------------------- 6 (number of standard deviations) When estimating the variance of a dichotomous (proportional) variable such as gender, Krejcie and Morgan (1970) recommended that researchers should use .50 as an estimate of the population proportion....
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Journal Article•DOI•

The impact of culture and governance on corporate social reporting

[...]

Roszaini Haniffa¹, T. E. Cooke²•Institutions (2)

University of Bradford¹, University of Exeter²

01 Sep 2005-Journal of Accounting and Public Policy

TL;DR: In this article, board composition, multiple directorships and type of shareholders are used as a proxy for culture and the ethnic background of directors and shareholders is used to increase understanding of the potential effects of culture and corporate governance on social disclosures.

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1,633 citations

Journal Article•DOI•

The influence of eWOM in social media on consumers' purchase intentions

[...]

Ismail Erkan¹, Christopher H. Evans²•Institutions (2)

Izmir Kâtip Çelebi University¹, University College London²

01 Aug 2016-Computers in Human Behavior

TL;DR: A conceptual model was developed based on the integration of Information Adoption Model and related components of Theory of Reasoned Action that confirmed that quality, credibility, usefulness and adoption of information, needs of information and attitude towards information are the key factors of eWOM in social media that influence consumers' purchase intentions.

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640 citations

Cites background from "Determining Sample Size for Researc..."

...The sample size of 384 is considered appropriate when the population constitutes millions (at 95% confidence level and 5% margin of error) (Krejcie & Morgan, 1970; Sekaran, 2006)....
[...]

Organizational Research: Determining Organizational Research: Determining Appropriate Sample Size in Survey Research Appropriate Sample Size in Survey Research

[...]

James E. Bartlett, Joe W. Kotrlik, Chadwick C. Higgins

01 Jan 2001

TL;DR: In this paper, the procedures for determining sample size for continuous and categorical variables using Cochran's (1977) formulas are described, and a table is provided that can be used to select the sample size of a research problem based on three alpha levels and a set error rate.

...read moreread less

Abstract: The determination of sample size is a common task for many organizational researchers Inappropriate, inadequate, or excessive sample sizes continue to influence the quality and accuracy of research This manuscript describes the procedures for determining sample size for continuous and categorical variables using Cochran’s (1977) formulas A discussion and illustration of sample size formulas, including the formula for adjusting the sample size for smaller populations, is included A table is provided that can be used to select the sample size for a research problem based on three alpha levels and a set error rate Procedures for determining the appropriate sample size for multiple regression and factor analysis, and common issues in sample size determination are examined Non-respondent sampling issues are addressed

...read moreread less

464 citations

Cites methods from "Determining Sample Size for Researc..."

...When estimating the variance of a dichotomous (proportional) variable such as gender, Krejcie and Morgan (1970) recommended that researchers should use .50 as an estimate of the population proportion....
[...]
...The general rule relative to acceptable margins of error in educational and social research is as follows: For categorical data, 5% margin of error is acceptable, and, for continuous data, 3% margin of error is acceptable ( Krejcie & Morgan, 1970 )....
[...]

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Determining Sample Size for Research Activities.

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Cites methods from "Determining Sample Size for Researc..."

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