By Narender Kumar Chadha
Applied Psychometry is designed as a center textbook on perform of psychometry for undergraduate and post-graduate scholars of psychology and human source administration. it's going to support the scholars of their learn of the next papers:
- B.A. software Psychology (Core): mental review
- B.A. Honors Psychology (Core): Psychology: Psychometry or mental evaluation 1 and a pair of
- M.A. Psychology: mental review 1 and a couple of
- Human source administration: Recruitment and choice, mental Assessment
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One classification which is based on the rate of performance distinguishes between Speed Test and Power Test. SPEED TEST Speed Tests are the ones in which individual differences depend entirely on the speed of performance. Items are of uniform difficulty, all of which are well within the ability level of the persons for whom the test is designed; but the time limit is such that no examinee can attempt all the items. Under such conditions, each person’s score reflects only the speed with which he worked.
Such type of errors in test can be estimated through the amount of confidence one can lay on a test (the test reliability). 5. Personal Errors The third type of errors in measurement is called personal errors. These errors are due to subjective element of an individual. For example, if four persons sitting in a car are asked to read the speedometer, the difference in readings will be quite evident. Similarly, two persons evaluating and interpreting the same response do so quite differently because each has a unique perspective.
Systematic/Biased errors. Errors in Measurement 23 1. Accidental/Chance Errors These errors, as the nomenclature suggests, can occur any time; for example, sudden noise during test administration or physical inconvenience or pain experienced by the subject during the administration, and so on, are certain interfering factors that can produce errors in the results. As these factors are situational, the amount of chance errors varies. Also the direction in which they work varies, that is, such errors can sometimes increase the resultant and sometimes decrease its value.