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Table 3 Descriptive Statistics of CALLS Interview

From: Validation of the Cognitive Assessment of Later Life Status (CALLS) instrument: a computerized telephonic measure

Test Mean Score Standard Deviation Range
Verbal Learning and Memory    
   Word List Trial 1 4.6 1.8 0–9
   Word List Trial 2 6.4 2.1 1–12
   Word List Trial 3 7.4 2.0 2–12
   Word List Recognition 9.2 2.0 3–12
   Word List Cued Recall 6.4 2.4 0–11
   Word List Delayed Recall 5.7 2.8 0–11
Processing Speed    
   Choice Reaction Time Decile 5.5 2.9 1–10
   Simple Reaction Time Decile – Right ear 5.5 2.9 1–10
   Simple Reaction Time Decile – Left ear 5.4 2.9 1–10
Attention and Working Memory    
   DATE Score 3.6 0.9 0–5
   Digit Span Backward – span 4.4 1.3 0–6
   Digit Span Forward – span 6.2 0.9 4–7
Verbal Fluency and Naming    
   President/VP Naming 3.0 1.0 0–4
   F words -30 sec. 7.4 3.2 0–16
   Animal Naming -30 sec. 11.5 3.4 0–23
   Serial 7s 3.4 1.7 0–5
Concept Formation    
   4 Word Naming 3.9 0.4 2–4
   Similarities 4.8 2.1 0–7
  1. Note: For all analyses N = 211.