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Table 3: Psychometric evaluation of spanish Barry Albright Dystonia Scale. |
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Criterion |
Property |
Statistical |
Results |
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|
Reproducibility |
Reliability |
Cronbach’s alpha coefficient |
0.89 |
|
|
Internal consistency reliability |
Spearman’s rank correlation |
0.84 |
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|
Test-retest reliability |
Pearson’s correlation coefficient |
0.99 |
0.99 |
|
|
Inter-rater reliability |
0.90 (p = 0.00001) |
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|
Validity |
Face validity |
Applicability and acceptability |
Adequate |
|
|
Content validity |
Analysis |
See Table 2 |
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|
Criterion validity |
Pearson’s correlation coefficient |
0.99 |
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