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Table 2 Test-retest reliability of individual items of CAS test battery

From: Developing a test battery for diagnosis of childhood apraxia of speech in Arabic speakers

Test item r P
Receptive expressive discrepancy 0.989 < 0.001**
Consistency of speech production 1.000 < 0.001**
Non-speech motor task 1.000 < 0.001**
Speech motor task 1.000 < 0.001**
Diadochokinesis .990 < 0.001**
Prosodic assessment 1.000 < 0.001**
Total score 0.974 < 0.001**
  1. P chi-square test
  2. **p < 0.001(highly significant)