suddengains: An R package to identify sudden gains in longitudinal data

PloS One
Milan WiedemannAnke Ehlers

Abstract

Sudden gains are large and stable improvements in an outcome variable between consecutive measurements, for example during a psychological intervention with multiple assessments. Researching these occurrences could help understand individual change processes in longitudinal data. Three criteria are generally used to identify sudden gains in psychological interventions. However, applying these criteria can be time consuming and prone to errors if not fully automated. Adaptations to these criteria and methodological decisions such as how multiple gains are handled vary across studies and are reported with different levels of detail. These problems limit the comparability of individual studies and make it hard to understand or replicate the exact methods used. The R package suddengains provides a set of tools to facilitate sudden gains research. This article illustrates how to use the package to identify sudden gains or sudden losses and how to extract descriptive statistics as well as exportable data files for further analysis. It also outlines how these analyses can be customised to apply adaptations of the standard criteria. The suddengains package therefore offers significant scope to improve the efficiency, reporting, and rep...Continue Reading

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Citations

Aug 18, 2020·Psychotherapy Research : Journal of the Society for Psychotherapy Research·Jakob MechlerBjörn Philips
Jul 8, 2021·Behaviour Research and Therapy·Idan M AderkaThröstur Björgvinsson

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Methods Mentioned

BETA
cognitive behavioural therapy

Software Mentioned

ggplot2
dplyr
Excel
R Package dplyr
R Package ggplot2
R
STATA
SPSS
suddengains
shinygains

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