The following articles have been identified as containing relevant data sets.
Banister, H.
1927.
Block capital letters as tests of visual acuity.
British Journal of Ophthalmology, 11, 49-61.
Bell, G. L.
1967.
Effects of symbol frequency in legibility testing.
Human Factors, 9(5), 471-478.
Blommaert, F. J.
1988.
Early-visual factors in letter confusions.
Spatial Vision, 3(3), 199-224.
Blough, D. S.
1985.
Discrimination of letters and random dot patterns by pigeons and
humans.
Journal of Experimental Psychology: Animal Behavior Processes, 11(2),
261-280.
Boles, D. B. Clifford, J. E.
1989.
An upper- and lowercase alphabetic similarity matrix, with derived
generation similarity values.
Behavior Research Methods,Instruments, & Computers, 21, 579-586.
Bouma, H.
1971.
Visual recognition of isolated lower-case letters.
Vision Research, 11, 459-474.
Briggs, R. Hocevar, D. J.
1975.
A new distinctive feature theory for upper case letters.
Journal of General Psychology, 93(1), 87-93.
Cattell, J. M.
1886.
Über die Tägheit der Netzhaut und des Sehcentrums.
Philosophische Studien, 3, 94-127.
Coffin, S.
1978.
Spatial frequency analysis of block letters does not predict
experimental confusions.
Perception & Psychophysics, 23, 69-74.
Courrieu, P. de Falco, S.
1989.
Segmental vs. dynamic analysis of letter shape by preschool children.
Cahiers de Psychologie Cognitive/Current Psychology of Cognition, 9(2),
189-198.
Craig, J. C.
1979.
A confusion matrix for tactually presented letters.
Perception & Psychophysics, 26(5), 409-411.
Dockeray, F. C. Pillsbury, W. B.
1910.
The span of vision in reading and the legibility of letters.
Journal of Educational Psychology, 1, 123-131.
Dunn-Rankin, P.
1968.
The similarity of lowercase letters of the English alphabet.
Journal of Verbal Learning and Verbal Behavior, 7(6), 990-995.
Dunn-Rankin, P., Leton, D. A. Shelton, V. F.
1968.
Congruency factors related to visual confusion of English letters.
Perceptual & Motor Skills, 26, 659-666.
Engel, G. R., Dougherty, W. C. Jones, G. B.
1973.
Correlation and letter recognition.
Canadian Journal of Psychology, 27(3), 317-326.
Fisher, D. F., Monty, R. A. Glucksberg, S.
1969.
Visual confusion matrices: Fact or artifact?
The Journal of Psychology, 71, 111-125.
Gervais, M. J., Harvey, L. O. Roberts, J. O.
1984.
Identification confusions among letters of the alphabet.
Perception & Psychophysics, 10, 655-666.
Geyer, L. H.
1977.
Recognition and confusion of the lowercase alphabet.
Perception & Psychophysics, 22, 487-490.
Geyer, L. H. DeWald, C. G.
1973.
Feature lists and confusion matrices.
Perception & Psychophysics, 14, 471-482.
Geyer, L. H. Gupta, S. M.
1981.
Recognition/confusion of dot matrix vs. conventional font capital
letters.
Perception & Psychophysics, 29(3), 280-282.
Gibson, E. J.
1969.
Principles of learning and development.
New York: Meredith.
Gibson, E. J., Osser, H., Schiff, W. Smith, J.
1963.
An analysis of critical features of letters tested by a confusions
matrix.
A Basic Research Program on Reading: Cooperative Research Project No.
639 ( 1-22).
Ithaca, NY: Cornell University.
Gilmore, G. C., Hersh, H., Caramazza, A. Griffin, J.
1979.
Multidimensional letter similarity derived from recognition errors.
Perception & Psychophysics, 25, 425-431.
Green, D. M. Swetts, J. A.
1966.
Signal detection theory and psychophysics.
New York: Wiley.
Gupta, S. M., Geyer, L. H. Maalouf, J. A.
1983.
Effect of font and medium on recognition/confusion.
Proceedings of the SIGCHI conference on Human Factors in Computing
Systems, 144-149.
Hartridge, H. Owen, H. B.
1922.
Test types.
British Journal of Ophthalmology, 6, 543-549.
Heiser, W. J.
1988.
Selecting a stimulus set with prescribed structure from empirical
confusion frequencies.
British Journal of Mathematical & Statistical Psychology, 41(1),
37-51.
Hodge, D. C.
1962.
Legibility of a uniform-strokewidth alphabet: I. Relative legibility of
upper and lower case letters.
Journal of Engineering Psychology, 1, 23-46.
Jacobs, A. M., Nazir, T. A. Heller, O.
1989.
Perception of lowercase letters in peripheral vision: A discrimination
matrix based on saccade latencies.
Behavioral and Brain Sciences, 46(1), 95-102.
Javal, M.
1881.
L'évolution de la typographie considérée dans ses
rapports avec l'hygiène de la vue.
Revue Scientifique, XXVII, 802-813.
Johnson, J. R. Phillips, K. O.
1981.
Tactile spatial resolution. i. two-point discrimination, gap detection,
grating resolution, and letter recognition.
Journal of Neurophysiology, 46, 1177-1192.
Keren, G. Baggen, S.
1981.
Recognition models of alphanumeric characters.
Perception & Psychophysics, 29, 234-246.
Kikuchi, T., Yamashita, Y., Sagawa, K. Wake, T.
1979.
An analysis of tactile letter confusions.
Perception & Psychophysics, 26(4), 295-301.
Korte, W.
1923.
Über die Gestaltauffassung im indirekten Sehen.
Zeitschrift für Psychologie, 93, 17-82.
Kuennapas, T. Janson, A.
1969.
Multidimensional similarity of letters.
Perceptual & Motor Skills, 28, 3-12.
Laughery, K. R.
1969.
Computer simulation of short-term memory: A component-decay model.
G. H. B. . J. T. Spence (), The psychology of learning &
motivation: Advances in resarch and theory ( 3, 135-200).
New York: Academic Press.
Loomis, J. M.
1974.
Tactile letter recognition under different modes of stimulus
presentation.
Perception & Psychophysics, 16, 401-408.
Loomis, J. M.
1982.
Analysis of tactile and visual confusion matrices.
Perception & Psychophysics, 31, 41-52.
Liu, L. Arditi, A.
2001.
How crowding affects letter confusion.
Optometry and Vision Science, 78, 50-55.
Mayzner, M. S.
1975.
Information processing and cognition: The loyola symposium.
R. L. Solso (), ( Studies of visual information processing in
man).
Hillsdale, New Jersey: L. Erlbaum Associates.
McGraw, G., Rehling, J. Goldstone, R.
1994.
Letter perception: Toward a conceptual approach.
Proceedings of the sixteenth annual conference of the cognitive science
society ( 613-618).
Atlanta, GA: The Cognitive Science Society.
Ovink, G. W.
1938.
Legibility, atmosphere-value, and forms of printing types.
Leiden, Holland: A. W. Sijthoff's Uitgeversmij N. V.
Paap, K. R., Newsome, S. L., McDonald, J. E.
Schvaneveldt, R. W.
1982.
An activation-verification model for letter and word recognition: The
word-superiority effect.
Psychological Review, 89, 573-594.
Phillips, J. R., Johnson, K. O. Browne, H. M.
1983.
A comparison of visual and two modes of tactual letter resolution.
Perception & Psychophysics, 34(3), 243-249.
Podgorny, P. Garner, W.
1979.
Reaction time as a measure of inter- and intraobject visual similarity:
Letters of the alphabet.
Perception & Psychophysics, 26, 37-52.
Popp, H. M.
1964.
Visual discrimination of alphabet letters.
The Reading Teacher, 17, 221-226.
Reich, L. N. Bedell, H. E.
2000.
Relative legibility and confusions of letter acuity in the peripheral
and central retina.
Optometry and Vision Science, 77(5), 270-275.
Roethlein, B. E.
1912.
The relative legibility of different faces of printing types.
American Journal of Psychology, 23, 1-36.
Sanford, E. C.
1888.
The relative legibility of the small letters.
American Journal of Psychology, 1, 402-435.
Sanford, E. C.
1888.
The relative legibility of the small letters.
American Journal of Psychology, 1, 402-435.
Simpson, I. C., Mousikou, P., Montoya, J. M., & Defior, S. (2012). A letter visual-similarity matrix for Latin-based alphabets. Behavior Research Methods, 1-9.
Thorson, G.
1976.
An alternative for judging confusability of visual letters.
Perceptual & Motor Skills, 42(1), 116-118.
Tinker, M. A.
1928.
The relative legibility of the letters, the digits, and of certain
mathematical signs.
Journal of General Psychology, 1, 472-496.
Townsend, J. T.
1971a.
Theoretical analyses of an alphabetic confusion matrix.
Perception & Psychophysics, 9, 40-50.
Townsend, J. T.
1971b.
Alphabetic confusion: A test of models for individuals.
Perception & Psychophysics, 9, 449-454.
Uttal, W. R.
1969.
Masking of alphabetic character recognition by dynamic visual noise
(dvn).
Perception & Psychophysics, 6, 121-128.
van der Heijden, A. H. C., Malhas, M. S.
van den Roovart, B. P.
1984.
An empirical interletter confusion matrix for continuous-line capitals.
Perception & Psychophysics, 35, 85-88.
van Nes, F. L.
1983.
New characters for Teletext with improved legibility.
IPO Annual Progress Report, 18, 108-113.
Watson, A. B. Fitzhugh, A. E.
1989.
Modelling character legibility.
Society for Information Display Digest of Technical Papers, 20,
360-363.