RESEARCH PAPER
Personality characteristics attributed to people with intellectual disability
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1
Institute of Psychology, Jagiellonian University, Krakow, Poland
 
2
Centre for Cognitive Science, Jagiellonian University, Krakow, Poland
 
 
Submission date: 2024-02-13
 
 
Final revision date: 2024-06-04
 
 
Acceptance date: 2024-06-10
 
 
Online publication date: 2024-11-04
 
 
Corresponding author
Michal Gacek   

Institute of Psychology, Jagiellonian University, Krakow, Poland
 
 
 
KEYWORDS
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ABSTRACT
Background:
This paper describes a conceptual replication of a study of the personality characteristics that Zigler’s theory of personality attributes to people with intellectual disability. Our study is the first attempt in over twenty years to assess specific person-ality traits considered in this theory using experimental tasks.

Participants and procedure:
We studied 25 students of special vocational schools diagnosed with mild intellectual disability, 25 controls from main-stream vocational schools, and 25 primary school students with a similar level of general cognitive ability as that of the students with intellectual disability. We hypothesized that the levels of specific personality traits of people with intellectual disability would differ from those of controls from the general population; we also hypothesized that the direction of differ-ences in regard to these specific personality traits would be the same as assumed in Zigler’s theory. We assessed specific personality traits with seven experimental tasks which we based on descriptions of tasks used by Zigler and his colleagues.

Results:
We did not observe any statistically significant differences between the scores of participants with intellectual disability and those of the control groups.

Conclusions:
We explain the results in relation to changes in contextual factors and diagnostic practices over the years. The results indi-cate the need to conduct replicational studies in the field of clinical psychology.

REFERENCES (18)
1.
Bennett-Gates, D., & Kreitler, S. (1999). Expectancy of success in individuals with mental retardation. In E. Zigler & D. Bennett-Gates (Eds.), Personality development in individuals with mental retardation (pp. 130–144). Cam-bridge University Press.
 
2.
Burack, J. A., Evans, D. W., Napoleon, J. S., Weva, V. K., Russo, N., & Iarocci, G. (2021a). The science of humanity and the humanity of science: Perspectives on Ed Zigler’s contributions to developmental psychopathology and the study of all children. Development and Psychopathology, 33, 441–452. https://doi.org/10.1017/S09545....
 
3.
Burack, J. A., Evans, D. W., Russo, N., Napoleon, J. S., Goldman, K. J., & Iarocci, G. (2021b). Developmental per-spectives on the study of persons with intellectual disability. Annual Review of Clinical Psychology, 17, 339–363. https://doi.org/10.1146/annure....
 
4.
Dykens, E. M. (2021). Behavioral phenotypes and genomic testing: Scientific and societal implications. In L. M. Glidden, L. Abbeduto, L. L. McIntyre, & M. J. Tassé (Eds.), APA handbook of intellectual and developmental disa-bilities: Foundations (pp. 89–122). American Psychological Association. https://doi.org/10.1037/000019....
 
5.
Evans, D. W., Burack, J. A., Hodapp, R. M., & Iarocci, G. (2023). Ed Zigler’s legacy and the developmental ap-proach to the study of persons with intellectual disability. Journal of Intellectual Disability Research, 67, 183–185. https://doi.org/10.1111/jir.13....
 
6.
Gacek, M., Smoleń, T., & Pilecka, W. (2017). Consequences of learned helplessness and recognition of the state of cognitive exhaustion in persons with mild intellectual disability. Advances in Cognitive Psychology, 13, 42–51. https://doi.org/10.5709/acp-02....
 
7.
Gacek, M., Krzywoszanski, L., & Fusinska-Korpik, A. (2022). The revised Edward Zigler-Yale Personality Ques-tionnaire for persons with intellectual disability: a new four-factor structure in confirmatory factor analysis. Current Psychology, 41, 2772–2785. https://doi.org/10.1007/s12144....
 
8.
Harter, S., & Zigler, E. (1974). The assessment of effectance motivation in normal and retarded children. Develop-mental Psychology, 10, 169–180. https://doi.org/10.1037/h00360....
 
9.
R Core Team (2022). R: a language and environment for statistical computing. R Foundation for Statistical Compu-ting. Retrieved from https://www.R-project.org/.
 
10.
Raven J., Raven J. C., & Court J. H. (2000). Manual for Raven’s Progressive Matrices and Vocabulary Scales. Har-court Assessment.
 
11.
Venables, W. N., & Ripley, B. D. (2002). Modern applied statistics with S. Springer.
 
12.
World Health Organization (1996). ICD-10 guide for mental retardation. Retrieved from https://apps.who.int./iris/han... [accessed September 23, 2021].
 
13.
Yando, R., & Zigler, E. (1971). Outerdirectedness in the problem-solving of institutionalized and noninstitutional-ized normal and retarded children. Developmental Psychology, 4, 277–288. https://doi.org/10.1037/h00305....
 
14.
Zhang, Z., & Mai, Y. (2022). WebPower: Basic and advanced statistical power analysis. R package version 0.8.6. Re-trieved from https://CRAN.R-project.org/pac....
 
15.
Zigler, E., & Balla, D. (1972). Developmental course of responsiveness to social reinforcement in normal children and institutionalized retarded children. Developmental Psychology, 6, 66–73. https://doi.org/10.1037/h00322....
 
16.
Zigler, E. (1999). The individual with mental retardation as a whole person. In E. Zigler & D. Bennett-Gates (Eds.), Personality development in individuals with mental retardation (pp. 1–16). Cambridge University Press.
 
17.
Zigler, E. (2001). Looking back 40 years and still seeing the person with mental retardation as a whole person. In H. N. Switzky (Ed.), Personality and motivational differences in persons with mental retardation (pp. 3–55). Tay-lor & Francis Group.
 
18.
Zigler, E., Bennett-Gates, D., Hodapp, R. M., & Henrich, C. C. (2002). Assessing personality traits of individuals with mental retardation. American Journal on Mental Retardation, 107, 181–193. https://doi.org/10.1352/0895-8...<0181:APTOIW>2.0.CO;2.
 
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