PSYC37H3 Chapter Notes - Chapter 4: Linear Combination, Joseph L. Fleiss, Multivariate Analysis
Document Summary
Discrepancies between true ability and measurement of ability constitute errors of measurement. In psychological testing, the word error does not imply that a mistake has been made rather, than having a negative connotation, error implies that there will always been some inaccuracy in our measurements. Tests that are relatively free of measurement error are deemed to be reliable ; whereas tests that have too much measurement error are unreliable . Serious measurement error occurs in most physical, social, and biological sciences. Psychology owes the advanced development of reliability assessment to the early work of charles. In 1733, abraham de moivre introduced the basis notion of sampling error; and in 1896, karl pearson developed the product moment correlation: reliability theory puts these two concepts together in the context of measurement. L thorndike, who wrote an introduction to the theory of mental and social measurements .
