Sample size and the width of the confidence interval for mean difference

British Journal of Mathematical and Statistical Psychology

Volumn 62, Issue 2, 2009, Pages 201-215

  Liu, Xiaofeng Steven ^a  

^a National Education Association   (United States)

Author keywords

[No Author keywords available]

Indexed keywords

ARTICLE; CONFIDENCE INTERVAL; HUMAN; PROBABILITY; PSYCHOLOGY; RESEARCH; SAMPLE SIZE; STANDARD; STATISTICS;

CONFIDENCE INTERVALS; HUMANS; PROBABILITY; PSYCHOLOGY; RESEARCH; SAMPLE SIZE; STOCHASTIC PROCESSES;

EID: 67849122379     PISSN: 00071102     EISSN: None     Source Type: Journal    
DOI: 10.1348/000711008X276774     Document Type: Article

References (17)

1. Agresti, A., & Finlay, B. (1997). Statistical methods for the social sciences (3rd ed.). Upper Saddle River, NJ: Prentice Hall.
2. Beal, S. L. (1989). Sample size determination for confidence intervals on the population mean and on the difference between two population means. Biometrics, 45, 969-977.
3. Bickel, P. J., & Doksum, K. A. (1977). Mathematical statistics: Basic ideas and selected topics. Englewood Cliffs, NJ: Prentice Hall.
4. Cochran, W. (1983). Planning and analysis of observational studies. New York: Wiley.
5. Grieve, A. P. (1991). Confidence intervals and sample sizes. Biometrics, 47, 1597-1603.
6. Hahn, G., & Meeker, W. (1991). Statistical intervals: A guide for practitioners. New York: Wiley.
7. Hsu, L. (1994). Unbalanced designs to maximize statistical power in psychotherapy efficacy studies. Psychotherapy Research, 4(2), 95-106.
8. International Committee of Medical Journal Editors (1988). Uniform requirements for manuscripts submitted to biomedical journals. Annals of Internal Medicine, 108, 258-265.
9. Jiroutek, M. R., Muller, K. E., Kupper, L. L., & Stewart, P. W. (2003). A new method for choosing sample size for confidence interval-based inferences. Biometrics, 59, 580-590.
10. Johnson, N., Kotz, S., & Balakrishnan, N. (1994). Continuous univariate distributions (2nd ed., Vol. 1). New York: Wiley.
11. Kelley, K., Maxwell, S. E., & Rausch, J. R. (2003). Obtaining power or obtaining precision: Delineating methods of sample-size planning. Evaluation and the Health Professions, 26, 258-287.
12. Kelley, K., & Rausch, J. (2006). Sample size planning for the standardized mean difference: Accuracy in parameter estimation via narrow confidence intervals. Psychological Methods, 11, 363-385.
13. Moore, D. (2003). The basic practice of statistics (3rd ed.). New York: Freeman.
14. Neyman, J. (1937). Outline of a theory of statistical estimation based on the classical theory of probability. Philosophical Transaction of the Royal Society of London Series A, 236, 333-380.
15. Pan, Z., & Kupper, L. L. (1999). Sample size determination for multiple comparison studies treating confidence interval width as random. Statistics in Medicine, 18, 1475-1488.
16. SAS Institute (2004). SAS 9.1.3 Help and Documentation. Cary, NC: SAS Institute.
17. Wilkinson, L., & American Psychological Association Task Force on Statistical Inference (1999). Statistical methods in psychology journals: Guidelines and explanations. American Psychologist, 54, 494-604.