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24-03-2021 | Original Paper

A Decade Review of Two Potential Analysis Altering Variables in Graph Construction

Auteurs: Corey Peltier, Reem Muharib, April Haas, Art Dowdy

Gepubliceerd in: Journal of Autism and Developmental Disorders | Uitgave 2/2022

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Abstract

In single-case research designs (SCDs) to determine a functional relation a time-series graph is constructed. Preliminary evidence suggest the approach used to scale the vertical axis and the data points per x- to y-axis ratio (DPPXYR) impact visual analysts’ decisions. We conducted a systematic review to evaluate time-series graphs published in the last decade in four premier journals in the field of autism. We included 348 articles including 2675 graphs. We identified large variation across and within types of SCDs when evaluating the lengths of the vertical and horizontal axis using the y:x ratio and the DPPXYR, with few adhering to current recommendations. A majority of graphs used an appropriate method to scale the vertical axis that would not increase Type I error rates.
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Metagegevens
Titel
A Decade Review of Two Potential Analysis Altering Variables in Graph Construction
Auteurs
Corey Peltier
Reem Muharib
April Haas
Art Dowdy
Publicatiedatum
24-03-2021
Uitgeverij
Springer US
Gepubliceerd in
Journal of Autism and Developmental Disorders / Uitgave 2/2022
Print ISSN: 0162-3257
Elektronisch ISSN: 1573-3432
DOI
https://doi.org/10.1007/s10803-021-04959-0

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