Find over 25,000 psychological definitions

geometric mean

a measure of central tendency calculated for k numbers x1xk as (x x2 × x3xk)1/k. A geometric mean is similar to an arithmetic mean except that the latter involves the sum of the quantities divided by the number of quantities, whereas the former is the product of the quantities with the product raised to the power of 1 divided by the number of quantities. Thus, for the numbers 1, 2, and 3, the arithmetic mean is 6/3 = 2, and the geometric mean is the cube root of (1)(2)(3) = 61/3 = 1.817. See also harmonic mean.

Browse dictionary by letter

a b c d e f g h i j k l m n o p q r s t u v w x y z

Psychology term of the day

May 26th 2024



n. the provision of instruction, encouragement, and other support to an individual (e.g., student, youth, colleague) to aid his or her overall growth and development or pursuit of greater learning skills, a career, or other educational or work-related goals. Numerous mentoring programs exist within occupational, educational, and other settings; they use frequent communication and contact between mentors and their respective protégés as well as a variety of techniques and procedures to develop productive relationships.