Skip to main content Accessibility help
×
Home

Innate Abilities, One or Many?* A New Method and Some Results

  • Steven G. Vandenberg (a1)

Summary and concluding remarks

A generalization of the F test is proposed to see how many independent components are statistically significant when the co-variances between DZ twin differences on several psychological tests are compared with similar co-variances for MZ twins. When applied to the 6 scores of Thurstone's Primary Mental Abilities test battery, at least 4 separate components were found to be significant independently. Then 4 components are tentatively identified as similar to, although not identical with, the Number, Verbal, Space and Word fluency scores. While the procedure bears some resemblance to factor analysis, it may lead to quite different results since it is based on the comparison of two co-variance matrices of twin differences.

In conclusion, it should be kept in mind that these results are based on small samples of MZ and DZ twins, so that a repetition of the study seems indicated. This replication is now in progress.

    • Send article to Kindle

      To send this article to your Kindle, first ensure no-reply@cambridge.org is added to your Approved Personal Document E-mail List under your Personal Document Settings on the Manage Your Content and Devices page of your Amazon account. Then enter the ‘name’ part of your Kindle email address below. Find out more about sending to your Kindle. Find out more about sending to your Kindle.

      Note you can select to send to either the @free.kindle.com or @kindle.com variations. ‘@free.kindle.com’ emails are free but can only be sent to your device when it is connected to wi-fi. ‘@kindle.com’ emails can be delivered even when you are not connected to wi-fi, but note that service fees apply.

      Find out more about the Kindle Personal Document Service.

      Innate Abilities, One or Many?* A New Method and Some Results
      Available formats
      ×

      Send article to Dropbox

      To send this article to your Dropbox account, please select one or more formats and confirm that you agree to abide by our usage policies. If this is the first time you use this feature, you will be asked to authorise Cambridge Core to connect with your <service> account. Find out more about sending content to Dropbox.

      Innate Abilities, One or Many?* A New Method and Some Results
      Available formats
      ×

      Send article to Google Drive

      To send this article to your Google Drive account, please select one or more formats and confirm that you agree to abide by our usage policies. If this is the first time you use this feature, you will be asked to authorise Cambridge Core to connect with your <service> account. Find out more about sending content to Google Drive.

      Innate Abilities, One or Many?* A New Method and Some Results
      Available formats
      ×

Copyright

Footnotes

Hide All
*

Acknowledgments. This report is based on data obtained in the Hereditary Abilities Study of the Institute of Human Biology of the University of Michigan of which Lee R. Dice was the principal investigator. The study was supported by McGregor Fund of Detroit and by grant M-1045 of the National Institute of Mental Health. The help of Mrs. Kathryn Goode and of the staff of the University of Michigan Computing Laboratory is gratefully acknowledged in obtaining the covariance matrices. For the solution of the characteristic equations I am indebted to Charles Wrigley and Peter Hemingway of Michigan State University and to MISTIC. Support while writing the paper was received from NIH grants RG-5527, M-6203 and MH-07033-01 and National Science Foundation grant GB-466.

While I am solely responsible for the ideas in this paper, I have profited from correspondence or discussions with Drs. Batschelet, Dempster, Dwyer, Hotelling, Lawley, Lubin, Tucker, Tukey and others.

Footnotes

References

Hide All
Bartlett, M. S.: Tests of significance in factor analysis. Brit. J. Stat. Psychol., 3: 7785, 1950.
French, J. W.: The description of aptitude and achievement tests in terms of rotated factors. Psychometric Monograph 5, University of Chicago Press, 1951.
Guilford, J. P.: The structure of intellect. Psychol. Bull., 55: 287293, 1956.
Loevinger, Jane: Theories of intelligence. In Helson, H. Ed. Theoretical foundations of psychology, New York, Van Nostrand, 1951.
Sutton, H. E., Clark, P. J., Schull, W. J.: The use of multi-allele genetic characters in the diagnosis of twin zygosity. Amer. J. Hum. Genet., 7: 180188, 1955.
Sutton, H. E., Vandenberg, S. C., Clark, P. J.: The hereditary abilities study: selection of twins, diagnosis of zygosity and program of measurements. Amer. J. Hum. Genet., 14: 5263, 1962.
Thurstone, L. L.: The primary mental abilities tests. Science Research Associates, Chicago, 1941.
Vandenberg, S. G.: The hereditary abilities study: hereditary components in a psychological test battery. Amer. J. Hum. Genet., 14: 220237

Innate Abilities, One or Many?* A New Method and Some Results

  • Steven G. Vandenberg (a1)

Metrics

Full text views

Total number of HTML views: 0
Total number of PDF views: 0 *
Loading metrics...

Abstract views

Total abstract views: 0 *
Loading metrics...

* Views captured on Cambridge Core between <date>. This data will be updated every 24 hours.

Usage data cannot currently be displayed