Wechsler D. The Measurement and Appraisal of Adult Intelligence (4th ed.). Baltimore: Williams and Wilkins, 1958.
786
Guilford J. P. The Nature of Intelligence. New York: McGraw-Hill, 1967.
787
Hogan R. Development of an Empathy Scale. Journal of Consulting and Clinical Psychology. 1969; 33: 307–316; Sternberg R. Beyond IQ: A Triarchic Theory of Human Intelligence. New York: Cambridge University Press, 1985; Gardiner H. Multiple Intelligences: The Theory in Practice. New York: Basic Books, 1993.