[IQ tests] Complete test material for Form L [and for] Form M

Revised Stanford-Binet Scales by Lewis M. Terman and Maud A. Merrill. Boston etc., Houghton Mifflin Company, ca. 1940 (copyright 1937), 2 uniform wooden boxes with mostly identical test materials, both with sliding lid with title and table of contents on the inside and label with title on the side, 38.5 x 26 cm.

Both boxes contain var. envelopes with forms, cards kaarten etc. and various miniature toys, beads, blocks etc. See for more information: http://www.sciencemuseum.org.uk/online_science/explore_our_collections/objects/index/smxg-432850. With: Thematic apperception test. Cambridge, Harvard University Press, ca. 1930, with 31 cards with images, each 23.5 x 28 cm., loose as published in the original paper portfolio with tie, 4to size.