Abstract
In attentional tasks a basic performance is often contrasted with the same task administered with some additional load, defined here as 'interference'. However, it is questionable how interference should be quantified. The raw difference between the interference-loaded ('complex') task and the basic task is marred by measurement artefacts. There are alternative ways, but the choice of which solution to employ appears arbitrary. Bivariate non-parametric tolerance limits were introduced as they retain the information linked to the bivariate nature of the observation, and in this study we compared the different approaches for evaluating interference using real data from 209 normal participants who performed Visual Reaction Times (basic and go/no-go) and the Stroop Test. Our analysis indicated that, among the univariate indices, the use of the complex score covaried for the basic score yields the most satisfactory evaluation of interference; however, its use can be decided only after data inspection. Bivariate non-parametric tolerance limits offer advantages in terms of generality of use.
| Original language | English |
|---|---|
| Pages (from-to) | 216-228 |
| Number of pages | 13 |
| Journal | Journal of Clinical and Experimental Neuropsychology |
| Volume | 21 |
| Issue number | 2 |
| DOIs | |
| Publication status | Published - 1999 |
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ASJC Scopus subject areas
- Clinical Neurology
- Neurology
- Psychology(all)
- Clinical Psychology
Cite this
How can we evaluate interference in attentional tests? A study based on Bi-variate non-parametric tolerance limits. / Capitani, Erminio; Laiacona, Marcella; Barbarotto, Riccardo; Cossa, Federico M.
In: Journal of Clinical and Experimental Neuropsychology, Vol. 21, No. 2, 1999, p. 216-228.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - How can we evaluate interference in attentional tests? A study based on Bi-variate non-parametric tolerance limits
AU - Capitani, Erminio
AU - Laiacona, Marcella
AU - Barbarotto, Riccardo
AU - Cossa, Federico M.
PY - 1999
Y1 - 1999
N2 - In attentional tasks a basic performance is often contrasted with the same task administered with some additional load, defined here as 'interference'. However, it is questionable how interference should be quantified. The raw difference between the interference-loaded ('complex') task and the basic task is marred by measurement artefacts. There are alternative ways, but the choice of which solution to employ appears arbitrary. Bivariate non-parametric tolerance limits were introduced as they retain the information linked to the bivariate nature of the observation, and in this study we compared the different approaches for evaluating interference using real data from 209 normal participants who performed Visual Reaction Times (basic and go/no-go) and the Stroop Test. Our analysis indicated that, among the univariate indices, the use of the complex score covaried for the basic score yields the most satisfactory evaluation of interference; however, its use can be decided only after data inspection. Bivariate non-parametric tolerance limits offer advantages in terms of generality of use.
AB - In attentional tasks a basic performance is often contrasted with the same task administered with some additional load, defined here as 'interference'. However, it is questionable how interference should be quantified. The raw difference between the interference-loaded ('complex') task and the basic task is marred by measurement artefacts. There are alternative ways, but the choice of which solution to employ appears arbitrary. Bivariate non-parametric tolerance limits were introduced as they retain the information linked to the bivariate nature of the observation, and in this study we compared the different approaches for evaluating interference using real data from 209 normal participants who performed Visual Reaction Times (basic and go/no-go) and the Stroop Test. Our analysis indicated that, among the univariate indices, the use of the complex score covaried for the basic score yields the most satisfactory evaluation of interference; however, its use can be decided only after data inspection. Bivariate non-parametric tolerance limits offer advantages in terms of generality of use.
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UR - http://www.scopus.com/inward/citedby.url?scp=0032842054&partnerID=8YFLogxK
U2 - 10.1076/jcen.21.2.216.934
DO - 10.1076/jcen.21.2.216.934
M3 - Article
C2 - 10425518
AN - SCOPUS:0032842054
VL - 21
SP - 216
EP - 228
JO - Journal of Clinical and Experimental Neuropsychology
JF - Journal of Clinical and Experimental Neuropsychology
SN - 1380-3395
IS - 2
ER -