Two studies regarding the graphic display of single case data are presented. First, measurement and graphical display of data from studies in highly-ranked journals in special education were assessed. Measurement of desirable behaviors rather than undesirable behaviors was common and most studies used sessions and percentages as x and y-values, respectively. Data presentation (graph ratios and number of data points and sessions per cm) was highly variable; average ratios did not align with previously-published recommendations. In the second study, 50 editorial board members of special education journals were surveyed to determine preferences for graphing ratios. Preferences did not align with recommended graphing practices and varied based on the number of sessions depicted on the graph.
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References
1.
BartlettS. M.RappJ. T.HenricksonM. L.Detecting false positives in multielement designs: Implications for brief assessment. Behavior Modification35531–5522011
2.
CooperJ. O.HeronT. E.HewardW. L.Applied behavior analysisPearsonUpper Saddle River, NJ2007nd ed.
DartE. H.RadleyK. C.The impact of ordinate scaling on the visual analysis of singlecase dataJournal of School Psychology63105–1182017
5.
HagopianL. P.FisherW. W.ThompsonR. H.Owen-DeschryverJ.IwataB. A.WackerD. P.Toward the development of structured criteria for interpretation of functional analysis dataJournal of Applied Behavior Analysis30313–3261997
6.
HammondD.GastD. L.Descriptive analysis of single subject research designs: 1983-2007Education and Training in Autism and Developmental Disabilities45187–2022010
7.
HornerR. H.CarrE. G.HalleJ.McgeeG.OdomS.WoleryM.The use of singlesubject research to identify evidence-based practice in special educationExceptional Children71165–1792005
8.
JohnstonJ. M.PennypackerH.Strategies and tactics of human behavior researchLawrence ErlbaumHillsdale, NJ1980
9.
KubinaR. M.KostewiczD. E.BrennanK. M.KingS. A.A critical review of line graphs in behavior analytic journalsEducational Psychology Review29583–5982017
10.
LaneJ. D.GastD. L.Visual analysis in single case experimental design studies: Brief review and guidelinesNeuropsychological Rehabilitation24445–4632014
11.
LauerT. W.PostG. V.Density in scatterplots and the estimation of correlationBehavior & Information Technology8235–2441989
12.
LedfordJ. R.No randomization? No problem. Experimental control and random assignment in single case researchAmerican Journal of Evaluation3971–902018
13.
LedfordJ. R.AyresK. A.LaneJ. D.LamM. F.Accuracy of interval-based measurement systems in single case researchJournal of Special Education49104–1172015
14.
LedfordJ. R.GastD. L.Single case research methodology. Applications in special education and behavioral sciencesRoutledgeNew York2018
15.
LedfordJ. R.LaneJ. D.SeveriniK. E.Systematic use of visual analysis for assessing outcomesBrain Impairment194–172017
16.
LedfordJ. R.WoleryM.Effects of plotting a second observer's data on A-B-A-B graphs when disagreement is presentJournal of Behavioral Education22312–3242013
17.
LiebermanR.YoderP. J.ReichowB.WoleryM.Visual analysis of multiple baseline across participants graphs when change is delayedSchool Psychology Quarterly2528–442010
18.
LloydB.WeaverE.StaubitzJ.A review of functional analysis methods conducted in public school classroom settingsJournal of Behavioral Education25324–3562016
19.
MatyasT. A.GreenwoodK. M.Visual analysis of single-case time series: Effects of variability, serial dependence, and magnitude of intervention effectsJournal of Applied Behavior Analysis23341–3511990
20.
MorleyS.AdamsM.Graphical analysis of single-case time series dataBritish Journal of Clinical Psychology3097–1151991
21.
MudfordO. C.LockeJ. M.JeffreyK.Rates of responding measured by continuous recording in applied behavioral researchBehavioral Interventions2641–492011
22.
PustejovskyJ. E.SullivanW. R.K. J.Procedural sensitivities of effect sizes for SCDs with behavioral outcome measuresBehavior Research Methodshttps://osf.io/pxn24/Shadish43971–9802011Characteristics of single-case designs used to assess intervention effects in 2008
23.
SmithJ. D.Single-case experimental designs: A systematic review of published research and current standardsPsychological Methods17510–5502012
WongC.OdomS. L.HumeK. A.CoxA.FettigA.Schultz. .T.Evidence-based practices for children, youth, and young adults with autism spectrum disorder: A comprehensive reviewJournal of Autism and Developmental Disorders451951–19662015
