Data Sets

Choose from individual sections below, or download all the files as a zip file.
Appendices & Source Texts


Section 2.3:
The data introduced in this section are from Juel-Nielsen’s (1965) Danish study of separated identical twins. They can be uploaded by clicking twinsiq.sav

Section 4.1:
The data set from Chapter 2 is reused here, to upload the data click twinsiq.sav

Section 5.2:
These data are from research by Hovland and Sears (1940) into the relationship between frustration and aggression, relating the annual number of lynchings in the southern United States from 1882 to 1930 with the value of cotton production in the corresponding years. To upload the data click lynch.sav

Section 6.2:
The results of a study by Cohen et al. (1989) of 554 people in Los Angeles who tried to give up cigarette smoking by themselves were reported in an article. To upload the data, click smoking.sav

Section 6.5:
Feller’s (1968, pp. 160-161) example from the bombing of London during the Second World War. To upload, click bombs.sav

Section 7.2:
An experiment by Fazio et al. (1995) in which an unobtrusive (disguised) measure of racial attitudes was applied to 45 white and 8 black students in the USA. To upload, click fazio.sav

Section 7.3:
An experiment by Knox, Morgan, and Hilgard (1974) in which eight university students who had been selected for high hypnotic susceptibility were exposed to pain in hypnosis under two conditions: with suggestions from the hypnotist designed to induce anaesthesia, and without anaesthesia suggestions. To upload, click knox.sav

Section 8.2:
The data set from Chapter 7 is reused here, to upload the data click knox.sav

Section 9.2:
These are partial data from Corston and Colman’s (1996) experiment in which female students attempted to use a mouse pointer to track a small square as it moved erratically around a computer screen in the presence of a female or a male audience. To upload, click audience.sav

Section 10.2:
Data from Corston and Colman (1996), including data from male participants. Both men and women students attempted to use a mouse pointer to track a small square as it moved erratically around a computer screen, working alone, in the presence of a female audience, or in the presence of a male audience. To upload, click genaud.sav

Section 11.1:
An experiment by Colman (1982, pp. 184-190) on cooperative choices in a social dilemma framed as an abstract decision problem or a lifelike decision problem. To upload, click dilemmas.sav

Section 12.1:
Research Assessment Exercise carried out by the Universities Funding Council (UFC) in the United Kingdom in 1992 (Universities Funding Council, 1993) on 17 anthropology departments. To upload, click regress.sav

Section 13.1:
A portion of the data reported by Bickel, Hammel, and O’Connell (1975) and Freedman et al. (1991, pp. 16-19), appearing to show gender bias in graduate admissions to the University of California at Berkeley but in fact providing an real-life example of Simpson’s paradox. To upload, click genbias.sav

Section 14.1:
The diameters, lengths, and specific gravities of 18 cylinders, taken from Thurstone’s (1947, pp. 117-124) larger data set. To upload, click factors.sav

Section 15.2:
The estimated numbers of worshippers belonging to the major religions of the world (, n.d.). To upload, click religion.sav

Section 16.1:
The extraversion scores of two people who filled in the IPIP. To upload, click extraversion.sav

Section 16.3:
To use a very large data set, the General Social Survey (GSS), either open the main SPSS program folder on your PC and locate it there, or to upload it click 1991 U.S. General Social Survey.sav

Section 17.2:
The data set from Chapter 5 is reused here, to upload the data click lynch.sav

Appendix 1:
The dates of birth of Woody Allen, Anthony Hopkins, and Nicole Kidman plus an imaginary interview date for each. To upload, click ages.sav

Appendix 2:
The data about twins’ IQ scores used in chapters 2, 3, and 4 are available as an Excel file called excel excel_twins.xls

Source texts (n.d.). Major religions of the world ranked by number of adherents. Retrieved May 24, 2005, from

Bickel, P. J., Hammel, E. A., & O’Connell, J. W. (1975). Sex bias in graduate admissions: Data from Berkeley. Science, 187, 398–404.

Cohen, J. (1992). A power primer. Psychological Bulletin, 112, 155–159.

Cohen, S., Lichtenstein, E., Prochaska, J. O., Rossi, J. S., Gritz, E. R., Carr, C. R., Orleans, C. T., Schoenbach, V. J., Biener, L., Abrams, D., DiClementi, C., & Curry, S. (1989). Debunking myths about self-quitting: Evidence from 10 prospective studies of persons who attempt to quit smoking by themselves. American Psychologist, 44, 1355–1365.

Colman, A. M. (1982). Game theory and experimental games: The study of strategic interaction. Oxford, UK: Pergamon.

Corston, R., & Colman, A. M. (1996). Gender and social facilitation effects on computer competence and attitudes toward computers. Journal of Educational Computing Research, 14, 171–183.

Fazio, R. H., Jackson, J. R., Dunton, B. C., & Williams, C. J. (1995). Variability in automatic activation as an unobtrusive measure of racial attitudes: A bona fide pipeline. Journal of Personality and Social Psychology, 69, 1013–1027.

Feller, W. (1968). An introduction to probability theory and its applications (3rd ed., Vol. 1). New York: Wiley.

Freedman, D., Pisani, R., Purves, R., & Adhikari, A. (1991). Statistics (2nd ed.). New York: Norton.

Hays, W. L. (2007). Statistics (6th ed.). Belmont, CA: Wadsworth.

Hovland, C. I., & Sears, R. R. (1940). Minor studies of aggression: VI. Correlation of lynchings with economic indices. Journal of Psychology, 9, 301–310.

Howell, D. C. (2008). Fundamental statistics for the behavioral sciences (6th ed.). Belmont, CA: Duxbury.

Huck, S. W. (2008). Reading statistics and research (5th ed.). Boston, MA: Allyn & Bacon.

Juel-Nielsen, N. (1965). Individual and environment: A psychiatric-psychological investigation of monozygous twins reared apart. Acta Psychiatrica et Neurologica Scandinavica, Monograph Supplement 183.

Knox, V. J., Morgan, A. H., & Hilgard, E. R. (1974). Pain and suffering in ischemia: The paradox of hypnotically suggested anesthesia as contradicted by reports from the “hidden observer”. Archives of General Psychiatry, 30, 840–847.

Norman, G. R., & Streiner, D. L. (2008). Biostatistics: The bare essentials (3rd ed.). Toronto: B. C. Decker.

Norušis, M. J. (1993). SPSS for Windows base system user’s guide release 6.0. Chicago, IL: SPSS Inc.

Pagano, R. R. (2007). Understanding statistics in the behavioral sciences (8th ed.). Belmont, CA: Wadsworth.

Simpson, E. H. (1951). The interpretation of interaction in contingency tables. Journal of the Royal Statistical Society, Series B, 13(2), 238–241.

Spearman, C. (1904). “General intelligence”, objectively determined and measured. American Journal of Psychology, 15, 201–293.

Thurstone, L. L. (1947). Multiple-factor analysis: A development and expansion of The Vectors of Mind. Chicago, IL: University of Chicago Press.

Universities Funding Council. (1993). A report for the Universities Funding Council on the conduct of the 1992 research assessment exercise. Bristol, UK: Author.