Autor: Klaas Sijtsma

Categorical data are quantified as either nominal variables–distinguishing different groups, for example, based on socio-economic status, education, and political persuasion–or ordinal variables–d …

Categorical data are quantified as either nominal variables–distinguishing different groups, for example, based on socio-economic status, education, and political persuasion–or ordinal variables–d …

Despite the overwhelming use of tests and questionnaires, the psychometric models for constructing these instruments are often poorly understood, leading to suboptimal measurement. Measurement Models …

Despite the overwhelming use of tests and questionnaires, the psychometric models for constructing these instruments are often poorly understood, leading to suboptimal measurement. Measurement Models …