categorical data analysis

any of several statistical procedures used to model variables that indicate counts or observations in specific categories, often as a function of one or more predictor variables. For example, counts of survival status (e.g., life vs. death) may be compared by treatment condition (e.g., treatment vs. no treatment). Techniques commonly used in categorical data analysis include the chi-square test, logistic regression, and probit analysis.

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Psychology term of the day

February 22nd 2025

imaging

1. the process of scanning the brain or other organs or tissues to obtain an optical image that can be used for medical and research purposes, such as locating abnormalities or studying anatomy and function. Techniques used include computed tomography, positron emission tomography (PET), anatomical magnetic resonance imaging (aMRI), and functional magnetic resonance imaging (fMRI). The imaging may be either static or dynamic. See also brain imaging; nuclear imaging.

2. in therapy, the use of suggested mental images to control body function, including the easing of pain. See also imagery technique; visualization.