different between psychometry vs psychometrics

English

psycho- +? -metry

psychometry (plural psychometries)

(parapsychology) The paranormal ability to discover information about an object's past, and especially about its past owners, merely by handling it.
(psychology) The use of psychological tests to measure intelligence, abilities, attitudes, and personality traits.
- 1960, Indian Journal of Psychology XXXV–XXXVII, page 25:
  In psychometry and paedometry his original contributions will be little unless he had equipped himself well with the subjects like mathematics and statistics.
- ibidem, page 27:
  Again, barring in a few universities psychometry and physiological psychology are not regarded as compulsory papers.

psycho- +? metrics

psychometrics (uncountable)

(psychology) The design of psychological tests to measure intelligence, aptitude and personality; and the analysis and interpretation of their results.

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