Showing Records: 11 - 20 of 253
Item
Identifier: Coll-1064/83
Scope and Contents
Thomson refers to manuscripts he has enclosed regarding minimum rank and trace. These have not survived in the collection. Thomson mentions the inclusion of Ledermann's article in the current edition of Psychometrika; informs him of the 12th International Congress of Psychologists to be held in Edinburgh, pointing out that there is to be half a day devoted to factor analysis; and tells him he has noticed a misprint in ...
Dates:
4 Jul 1939
Item
Identifier: Coll-1064/96
Scope and Contents
Ledermann asks Thomson to stop by his office when he visits Moray House so he can be introduced to James Duff.
Dates:
26 Feb 1940
Item
Identifier: Coll-1064/37
Scope and Contents
Small postcard in which Thomson invites Ledermann to dinner, asking him to bring his violin. He refers to a letter he has had from M S Bartlett regarding a proof.
Dates:
31 Jan 1938
Item
Identifier: Coll-1064/84
Scope and Contents
Thomson informs Ledermann that he has read through his paper and recommends the Edinburgh Royal Society as the best place to try for publication. He refers to a misprint in Ledermann's manuscript and offers a correction. Thomson asks Ledermann if he still has the calculating machine, and if it would be possible for him to undertake some calculations for an experiment in Scotland regarding performance tests, and referring to Thurstone’s centroid analysis. He assures him that any...
Dates:
1 Aug 1939
Item
Identifier: Coll-1064/4
Scope and Contents
Thomson informs Ledermann that his leave of absence has been granted for 1937-1938, and tells him that he will be speaking with A C Aitken regarding the possibility of adding a mathematical computer to his team.
Dates:
5 Jun 1937
Item
Identifier: Coll-1064/38
Scope and Contents
Thomson offers to change the date of his previous dinner invitation, and states that he has enclosed the Doolittle calculation along with the letter and card from M S Bartlett referred to in his last letter. These items have not survived in the collection. Thomson suggests that while Bartlett's letter is interesting, he does not agree that his estimates are unbiased. Thomson asks Ledermann to read through chapters three and four of ...
Dates:
1 Feb 1938
Item
Identifier: Coll-1064/85
Scope and Contents
Thomson advises Ledermann on how he can shorten his manuscript, and offers to send it to the Royal Society in Edinburgh. Thomson discusses the calculations referred to in his previous letter, suggesting that Mr Kendal of the Agricultural and Fishes may be able to help. He informs Ledermann that the calculations are two Thurstone centroid analyses, one on 441 boys, the other on 430 girls, all Scottish children born on the 1st of...
Dates:
10 Aug 1939
Item
Identifier: Coll-1064/39
Scope and Contents
Thomson asks Ledermann to clarify a point he made regarding Thomson's statement about t[etrad] d[ifferences], including examples for his attention.
Dates:
7 Feb 1938
Item
Identifier: Coll-1064/86
Scope and Contents
Thomson asks Ledermann to do nothing for the time being with the calculations referred to in his previous correspondence, since he thinks there are potential discrepancies to be checked beforehand.
Dates:
14 Aug 1939
Item
Identifier: Coll-1064/5
Scope and Contents
Thomson discusses his plans for summer, which include lecturing at the Bingley Training College, and staying at Glenapp, Ayrshire, and informs Ledermann that he is not sure where he will be based for winter.
He advises Ledermann to undertake preparatory reading, and attaches a short reading list which includes the work of T L Kelley, L L Thurstone, W P Alexander, and Cyril Burt.
Dates:
28 Jun 1937
