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Thomson, Godfrey Hilton, Sir, 1881-1955 (psychologist and Bell Professor of Education, University of Edinburgh)


Found in 253 Collections and/or Records:

1 (37), Thomson to Ledermann, 2 Feb 1937

Identifier: Coll-1064/1
Scope and Contents Thomson acknowledges receipt of Ledermann's letter and manuscript, expressing pleasure at Ledermann's continuing interest in factor analysis.

Thomson draws parallels between a formula Ledermann uses and the work of Kelley, specifically his pentad criterion as discussed in Crossroads in the Mind of Man.

1 (38), Thomson to Ledermann, 1 Jan 1938

Identifier: Coll-1064/34
Scope and Contents Thomson asks Ledermann to explain an article of C Spearman's. The unnamed article is referred to in Spearman's The Abilities of Man, and regards the reversibility of proof of Spearman's tetrad criterion.

1 (39), Ledermann to Thomson, and Thomson to Ledermann, 25 Apr 1939-26 Apr 1939

Identifier: Coll-1064/81
Scope and Contents In Ledermann's letter to Thomson, dated 25 Apr 1939, he informs Thomson of his applying for the Carnegie Teaching Fellowship, which would allow him to undertake original research in the areas of pure matrix algebra and abstract group theory. He also mentions that he would like to devote some time to applied mathematics, specifically factor analysis, and asks Thomson for permission to continue the work he undertook as Thomson's assistant, perhaps with the help of...

1 (40), Thomson to Ledermann, 30 Jan 1940

Identifier: Coll-1064/94
Scope and Contents Thomson invites Ledermann to dinner.

10 (37), Thomson to Ledermann, 19 Jul 1937

Identifier: Coll-1064/8
Scope and Contents Thomson continues to discuss Burt's paper, The Correlation between Persons, from the British Journal of Psychology, Jul 1937, providing an alternative to Burt's formula, which he criticises as being unnecessarily complex.

10 (38), Thomson to Ledermann, 21 Feb 1938

Identifier: Coll-1064/43
Scope and Contents Thomson asks Ledermann to discuss an example given by Burt in his article on correlations between persons which Thomson is having difficulty with, at their next meeting. He expounds upon the point in great detail, with most of the letter taken up with his working.

10 (39), Thomson to Ledermann, 11 Oct 1939

Identifier: Coll-1064/89
Scope and Contents Thomson discusses his difficulties in retrieving offprints from Customs House at Leith.

11 (37), Thomson to Ledermann, 20 Jul 1937

Identifier: Coll-1064/9
Scope and Contents Thomson continues to discuss Burt's article, The Correlation between Persons. He reproduces equations Ledermann sent in response to his previous letter, and asks him to clarify them.

11 (38), Thomson to Ledermann, 27 Feb 1938-28 Feb 1938

Identifier: Coll-1064/44
Scope and Contents Thomson explores his discovery regarding correlation co-efficients, or what he refers to as profile correlations, in a doubly centred matrix in relation to Thurstone’s centroid process. He also refers to Ledermann's assertion regarding the approach of a powered matrix to rank one as the power rises, stating that he disagrees, and referring to the work of Burt. Also includes a post script which...

11 (39), Thomson to Ledermann, 28 Oct 1939

Identifier: Coll-1064/90
Scope and Contents Thomson suggests Ledermann's new address means he has now found a house, and wishes he and his parents happiness. He asks him to send on the Psychometrika offprints. He refers Ledermann to two papers by E B Wilson and Jane Worcester respectively in the Proceedings of the National Academy of Sciences, in particular drawing his attention to their use of a Thurstone formula, and suggests Ledermann might want to pursue the matter...