‎General Ability, its Existence and Nature. (Original off-print) From The Journal pf Psychology, Vol. V. Part 1, March 1912. - [PIONEERING FACTOR ANALYSIS - PRESENTATION-COPY]‎

‎Cambridge, (1912). 8vo. Original printed wrappers. A bit of wear to extremities. A few nicks and creases. Inscribed to front free end-paper and with a few ownership-stamps (of the presentee- Dr. Richard Goldschmidt). (2) pp., pp. (51) - 79. ‎

‎Original off-print of Spearman and Hart's groundbreaking paper on general ability, which created a conceptual framework for factor analysis and played an enormous role in IQ-testing, with an original handwritten and signed presentation-inscription from Spearman to Richard Goldschmidt (fellow psychologist and director of the Institute for Experimental Psychology at the University of Münster), expressing friendly remembrance of the Berlin congress 1912. ""Spearman, with a collaborator, Hart, pioneered the use of the pattern of correlations between a set of measures to determine the number of abilities (Hart & Spearman, 1912). The tetrad difference criterion could test if a single common factor (g, or general ability, presumably) could account for individual differences on the measures. If the tetrad differences were zero, then a single common factor was supported, but if not, then it was unclear how many common factors were needed."" (Susan E. Embretson: The Second Century of Ability Testing: Some Predictions and Speculations, 2001, p. 11) Charles Edward Spearman (1863 - 1945) was a famous English psychologist known both for his work in statistics, but primarily for his work on human intelligence. He was a pioneer of factor analysis, he gave name to the Spearman's rank correlation coefficient and did seminal work on models for human intelligence, including his theory that disparate cognitive test scores reflect a single General intelligence factor, and he famously coined the term ""g- factor"". The g-factor, also known as General intelligence, refers to the existence of a broad mental capacity that influences performance on cognitive ability measures. Terms such as intelligence, IQ, general cognitive ability, and general mental ability are today used interchangeably to mean the same thing as general intelligence or g-factor. ""Charles E. Spearman, in full Charles Edward Spearman, (born September 10, 1863, London, England-died September 17, 1945, London), British psychologist who theorized that a general factor of intelligence, g, is present in varying degrees in different human abilities.While serving as an officer in the British army (1883-97), Spearman came to believe that any significant advance in philosophy would come about mainly through psychology. Over the next 10 years he worked intermittently with Wilhelm Wundt, the founder of experimental psychology, at the University of Leipzig, and he took his Ph.D. there. He joined the faculty of University College, London (1907), and was professor there from 1911 to 1931.Spearman's attempt to establish general, fundamental laws of psychology was based on his statistical work in determining correlations among mental abilities, reflected in his classic paper, "" 'General Intelligence,' Objectively Determined and Measured"" (1904). He sought to interpret correlations among several variables on the basis of a specific factor for each variable and a factor common to all. Because measures of seemingly different mental abilities consistently indicate correlations, he concluded that the prevalence of positive correlations must result from the general factor, g. By 1912 he and a coworker had developed an order of correlation coefficients separating various performances into the general factor, g, and varying specific factors, s1, s2, and so on."" (Encycl. Britt.). The present paper is of the utmost importance, as it is here that Spearman, in collaboration with Hart, develops a conceptual framework for factor analysis, pioneering the use of the pattern of correlations in order to determine the number of abilities, one of the fundamental principles for psychometric methods.‎

‎Whispering Smith.‎

‎ Etats-Unis, Charles Scribner's Sons / New York 1906. Fort in-8 cartonnage éditeur plein bradel rouge de 422 pages au format 13 x 3,5 x 19,5 cm. 1er plat orné d’une illustration en relief. Dos rond avec titre doré et gravé. Roman d'aventures " Western " par Frank H. Spearman. Frontispice et magnifiques illustrations en couleurs par N.C Wyeth. Petites rousseurs éparses. Coins avec infimes tassements. Nom de l'ancien propriétaire inscrit en page de garde. Superbe état général. Rare édition originale.‎

5 Images

‎ Site Internet : Http://librairie-victor-sevilla.fr.Vente exclusivement par correspondance. Le libraire ne reçoit, exceptionnellement que sur rendez-vous. Il est préférable de téléphoner avant tout déplacement.Forfait de port pour un livre 7 €, sauf si épaisseur supérieure à 3 cm ou valeur supérieure ou égale à 100 €, dans ce cas expédition obligatoire au tarif Colissimo en vigueur. A partir de 2 livres envoi en colissimo obligatoire. Port à la charge de l'acheteur pour le reste du monde.Les Chèques ne sont plus acceptés.Pour destinations extra-planétaire s'adresser à la NASA.Membre du Syndicat Lusitanien Amateurs MoruesLivres‎

‎Composantes (Les) de l’intelligence d’après les recherches factorielles. Préface par Henri Piéron. ‎

‎Paris, Presses Universitaires de France (Bibliothèque Scientifique Internationale Sciences humaines section psychologie), 1957 ; in-8, broché ; VIII, 517, (3) pp. , couverture verte imprimée.‎

‎Exemplaire non coupé, en bon état général, petite traca de mouillure sans importance. ‎

‎Les Aptitudes de l'Homme leur Nature et leur Mesure‎

‎Paris, 1936, in-8, 351pp, broché, Couverture salie sinon très bel exemplaire! 351pp ‎

‎Les aptitudes de l'homme. Leur nature et leur mesure -- PREMIERE EDITION FRANCAISE‎

‎P., Conservatoire des arts et mémtiers, 1936; un volume in 8, broché, couverture imprimée, (défraîchie), 351pp.‎

‎---- PREMIERE EDITION FRANCAISE ---- La doctrine monarchique : l'intelligence - La doctrine oligarchique des facultés formelles, des types - La doctrine anarchique : niveau général , moyenne , ou échantillon - La compétition mentale universelle - Hypothèse de l'énergie mentale - Aptitudes spéciales et facteurs de groupe - Envergure mentale. Distribution de l'attention - Loi de fatigue - Influence de l'âge - Hérédité et sexe - L'esprit et le corps - etc**4858/F5DE‎

‎Les aptitudes de l'homme. Leur nature et leur mesure.‎

‎Couverture souple. Broché. 351 pages. Couverture légèrement défraîchie.‎

‎Livre. Avant-propos de Georges Damois. Traduit par F. Brachet. Conservatoire National des Arts et Métiers (Collection : Publications du Travail Humain), 1936.‎