Abstract
We examined the extent to which variations in session duration affected the outcomes of functional analyses. Forty-six individuals, all diagnosed with mental retardation and referred for assessment and treatment of self-injurious or aggressive behavior, participated in functional analyses, consisting of repeated exposure to multiple test conditions during 15-min sessions. For each set of assessment data, new data sets based on session durations of 10 and 5 min were prepared by deleting data from the last 5 and 10 min, respectively, of each session. Each graph (N = 138) was then reviewed individually by graduate students who had previous experience conducting and interpreting functional analyses, but who were blind to both participant identity and session duration. Interpretations of behavioral function based on the 10- and 5-min data sets were then compared with those based on the 15-min data sets. All of the 10-min data sets yielded interpretations identical to those based on 15-min data sets. Interpretations based on the 5-min and 15-min data sets yielded three discrepancies, all of which were the result of increased response rates toward the latter parts of sessions. These results suggest that the efficiency of assessment might be improved with little or no loss in clarity by simply reducing the duration of assessment sessions.
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Selected References
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- Derby K. M., Wacker D. P., Sasso G., Steege M., Northup J., Cigrand K., Asmus J. Brief functional assessment techniques to evaluate aberrant behavior in an outpatient setting: a summary of 79 cases. J Appl Behav Anal. 1992 Fall;25(3):713–721. doi: 10.1901/jaba.1992.25-713. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Durand V. M., Crimmins D. B. Identifying the variables maintaining self-injurious behavior. J Autism Dev Disord. 1988 Mar;18(1):99–117. doi: 10.1007/BF02211821. [DOI] [PubMed] [Google Scholar]
- Iwata B. A., Dorsey M. F., Slifer K. J., Bauman K. E., Richman G. S. Toward a functional analysis of self-injury. J Appl Behav Anal. 1994 Summer;27(2):197–209. doi: 10.1901/jaba.1994.27-197. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Iwata B. A., Pace G. M., Dorsey M. F., Zarcone J. R., Vollmer T. R., Smith R. G., Rodgers T. A., Lerman D. C., Shore B. A., Mazalesk J. L. The functions of self-injurious behavior: an experimental-epidemiological analysis. J Appl Behav Anal. 1994 Summer;27(2):215–240. doi: 10.1901/jaba.1994.27-215. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Kahng S., Iwata B. A. Correspondence between outcomes of brief and extended functional analyses. J Appl Behav Anal. 1999 Summer;32(2):149–160. doi: 10.1901/jaba.1999.32-149. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Northup J., Wacker D., Sasso G., Steege M., Cigrand K., Cook J., DeRaad A. A brief functional analysis of aggressive and alternative behavior in an outclinic setting. J Appl Behav Anal. 1991 Fall;24(3):509–522. doi: 10.1901/jaba.1991.24-509. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Pyles D. A., Riordan M. M., Bailey J. S. The stereotypy analysis: an instrument for examining environmental variables associated with differential rates of stereotypic behavior. Res Dev Disabil. 1997 Jan-Feb;18(1):11–38. doi: 10.1016/s0891-4222(96)00034-0. [DOI] [PubMed] [Google Scholar]
- Repp A. C., Singh N. N., Olinger E., Olson D. R. The use of functional analyses to test causes of self-injurious behaviour: rationale, current status and future directions. J Ment Defic Res. 1990 Apr;34(Pt 2):95–105. doi: 10.1111/j.1365-2788.1990.tb01521.x. [DOI] [PubMed] [Google Scholar]
- Smith R. G. Analysis of establishing operations for self-injury maintained by escape. J Appl Behav Anal. 1995 Winter;28(4):515–535. doi: 10.1901/jaba.1995.28-515. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Vollmer T. R., Iwata B. A., Zarcone J. R., Smith R. G., Mazaleski J. L. Within-session patterns of self-injury as indicators of behavioral function. Res Dev Disabil. 1993 Nov-Dec;14(6):479–492. doi: 10.1016/0891-4222(93)90039-m. [DOI] [PubMed] [Google Scholar]