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More recently, psychometric theory has been applied in the measurement of personality, attitudes and beliefs, and academic achievement. These latent constructs cannot truly be measured, and much of the research and science in this discipline has been developed in an attempt to measure these constructs as close to the true score as possible.
The most recent edition of the Sixteen Personality Factor Questionnaire (16PF), released in 1993, is the fifth edition (16PF5e) of the original instrument. [25] [26] The self-report instrument was first published in 1949; the second and third editions were published in 1956 and 1962, respectively; and the five alternative forms of the fourth edition were released between 1967 and 1969.
The first version of the SON test was developed more than seventy years ago by psychologist Nan Snijders-Oomen, to study the cognitive functioning of deaf children. The goal of this test series was to break the one-sidedness of the non-verbal performance tests of that time and to broaden the functions accessible for non-verbal intelligence research.
The Mayer–Salovey–Caruso Emotional Intelligence Test (MSCEIT) is an ability-based measure of emotional intelligence.The test was constructed by academics John D. Mayer, Peter Salovey, and David R. Caruso at Yale and the University of New Hampshire in cooperation with Multi-Health Systems Inc.
However, formal psychometric analysis, called item analysis, is considered the most effective way to increase reliability. This analysis consists of computation of item difficulties and item discrimination indices, the latter index involving computation of correlations between the items and sum of the item scores of the entire test.
The psychometric properties of the NPI have been continually investigated since its creation in 1979, both by original creators Raskin and Hall, as well as a variety of researchers to come, including: Emmons, Bushman & Baumeister, and Rhodewalt & Morf. [1]
Various software packages are available for statistical methods for psychological research. They can be classified as commercial software (e.g., JMP and SPSS) and open-source (e.g., R). Among the open-source offerings, the R software is the most popular.
The WIAT-II is suitable for use in clinical, educational and research settings. It can be used to identify the academic strengths and weakness and individual possess of, as well as inform and aid intervention planning. It can be used in a variety of settings where there is concern over educational progress.