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11 |
On a problem concerning matrices with variable diagonal elements
Ledermann, Walter. - Edinburgh : Robert Grant, 1940
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12 |
On a shortened method of estimation of mental factors by regression
Ledermann, Walter. - Leipzig : Dt. Nationalbibliothek, 1939, [Online-Ausg.]
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13 |
On a shortened method of estimation of mental factors by regression
Ledermann, Walter. - [College Park, Md.] : [Psychometric Soc.], 1939
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14 |
Sampling distribution and selection in a normal population
Ledermann, Walter. - Cambridge : Univ. Pr., 1939
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15 |
Sampling distribution and selection in a normal population
Ledermann, Walter. - Leipzig : Dt. Nationalbibliothek, 1939, [Online-Ausg.]
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16 |
On a shortened method of estimation of mental factors by regression
Enthalten in Psychometrika Bd. 4, Nr. 2, date:6.1939: 109-116
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17 |
Note on Professor Godfrey H. Thomson's article "The influence of univariate selection on factorial analysis of ability"
Ledermann, Walter. - Leipzig : Dt. Nationalbibliothek, 1938, [Online-Ausg.]
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18 |
Note on Professor Godfrey H. Thomson's article "The influence of univariate selection on factorial analysis of ability"
Ledermann, Walter. - Cambridge : Cambridge at the Univ. Press, 1938
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19 |
Psychometrika / Vol. 3/4. 1938/39. (1938/1939)
(1938)
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20 |
The orthogonal transformations of a factorial matrix into itself
Ledermann, Walter. - Richmond, VA : Psychometric Society, 1938
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