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Table 4 Test-retest reliability over a 4-week interval: bivariate correlations and intraclass correlations

From: Spoken language outcome measures for treatment studies in Down syndrome: feasibility, practice effects, test-retest reliability, and construct validity of variables generated from expressive language sampling

  Conversation (n = 96) Narration (n = 80)
r ICC r ICC
Lexical Diversity .86*** .92*** .88*** .93***
Syntax .87*** .93*** .90*** .95***
Talkativeness .75*** .86*** .65*** .79***
Unintelligibility .82*** .90*** .72*** .87***
Dysfluency .77*** .87*** .76*** .84***
  1. All correlations remain significant after FDR correction