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The PPSS-R provides information about four different areas related to problem solving ability: Story design, story orientation, story solutions, and story resolution. These four areas are assessed by the 13 scoring criteria, 12 of which are rated on a five-point scale that ranges from -1 to 3.
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.
According to reliability and validity research conducted by Raskin and Hall, the NPI has strong construct validity and ecological validity. [1] When five factor model (FFM) profiles were created, expert-rated and meta-analytic studies established high correlation to the NPI profiles, indicating high reliability pertaining to personality trait ...
In psychometrics, item response theory (IRT, also known as latent trait theory, strong true score theory, or modern mental test theory) is a paradigm for the design, analysis, and scoring of tests, questionnaires, and similar instruments measuring abilities, attitudes, or other variables.
The book discusses the extent to which psychology can measure mental attributes such as intelligence and examines the philosophical issues that arise from such attempts. The book examines three major models within psychometrics; classical test theory/true scores, latent variables/item response theory and representational measurement theory ...
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.
Labelled example of a multi-item psychometric scale as used in questionnaires [12] Within social science research and practice, questionnaires are most frequently used to collect quantitative data using multi-item scales with the following characteristics: [12]
However, as Hambleton explains in his book, scores on any test are unequally precise measures for examinees of different ability, thus making the assumption of equal errors of measurement for all examinees implausible (Hambleton, Swaminathan & Rogers 1991, p. 4). A fourth, and final shortcoming of the classical test theory is that it is test ...