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Title: An inquiry into the 'Tetrad difference method' of testing the two factor theory of intelligence
Author: Mackie, John
Awarding Body: University of Edinburgh
Current Institution: University of Edinburgh
Date of Award: 1929
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PART I: I. Introduction. p.1 | II. Correlations between Mental Abilities. p.4 | III. Cause of correlations between mental abilities: mathematical expressions and geometrical illustration. p.8 | IV. Connections between correlations: two main lines of inquiry: the first of these, with an application of the geometrical method to some of its problems. p.16 | V. Special property of a set of correlations between mental abilities. The Hierarchy of Abilities and the Theory of Two Factors. p.23 | VI. Definition of Hierarchy: (a) Inter-columnar correlation; (b) The Tetrad difference. Statement of the special purpose of this Thesis. p.27 PART II: VII. Alternative possible standpoints, if the tetrad differences are found to be zero within the limits of experimental error. p.35 | VIII. The Sampling Theory of Ability. p.47 | IX. Some Objections to the Sampling Theory. p.52 | X. Value of the tetrad difference on the Sampling Theory for 'all or none' factors. p.53 | XI. Value of the tetrad difference on the Sampling Theory for variable factors. p.64 | XII. Summary and. Conclusion. p.73 PART III: Three published papers on the subject: i. The sampling theory as a variant of the two factor theory | ii. The probable value of the tetrad difference on the sampling theory | iii. Mathematical Consequences of Certain Theories of Mental Ability Appendices.
Supervisor: Not available Sponsor: Not available
Qualification Name: Thesis (D.Sc.) Qualification Level: Doctoral
EThOS ID:  DOI: Not available