LONGITUDINAL SCALOGRAM ANALYSIS (LSA) PROGRAM (VERSION 2.1) BY R. D. HAYS RAND ALERT Waves 1-3-5-6 Pattern #1 OVERALL SAMPLE INCLUDING TREATMENT in.7c2 ITEM PROPORTION PASSING ----------------------------------- Wave = 3 1 0.94 32ALC4 2 0.71 1CIG4 3 0.44 2POT4 4 0.20 7INH4 5 0.22 3ALCP4 6 0.18 4PILL4 7 0.14 5CIGP4 8 0.16 6LAST4 ------------------------------------ Wave = 2 1 0.92 8ALC3 2 0.67 9CIG3 3 0.35 10POT3 4 0.17 15INH3 5 0.16 11ALCP3 6 0.13 12PILL3 7 0.10 13CIGP3 8 0.10 14LAST3 ------------------------------------ Wave = 1 1 0.86 16ALC2 2 0.60 17CIG2 3 0.25 18POT2 4 0.12 23INH2 5 0.09 19ALCP2 6 0.08 20PILL2 7 0.07 21CIGP2 8 0.06 22LAST2 ------------------------------------ NUMBER OF SUBJECTS = 4093 LONGITUDINAL SCALOGRAM ANALYSIS 95% Confidence Interval -------------------------------------------------------------------- -------------------------------------------- COEFFICIENT OF REPRODUCIBILITY (LCR) = 0.9305 (0.9282 -> 0.9328) ESTIMATED STANDARD ERROR OF LCR = 0.0012 ACTUAL STANDARD ERROR OF LCR = 0.0014 MINIMUM MARGINAL REPRODUCIBILITY = 0.8203 PERCENT IMPROVEMENT = 0.1102 COEFFICIENT OF SCALABILITY = 0.6133 PROPORTION PERFECT GUTTMAN PATTERNS = 0.5343 -------------------------------------------- CROSS-SECTIONAL SCALOGRAM ANALYSIS COEFFICIENT OF REPRODUCIBILITY WAVE 3 = 0.8956 (0.8906 -> 0.9005) ESTIMATED STANDARD ERROR OF CR = 0.0025 ACTUAL STANDARD ERROR OF CR = 0.0023 MINIMUM MARGINAL REPRODUCIBILITY = 0.7894 PERCENT IMPROVEMENT = 0.1062 COEFFICIENT OF SCALABILITY = 0.5041 COEFFICIENT OF REPRODUCIBILITY WAVE 2 = 0.9136 (0.9091 -> 0.9181) ESTIMATED STANDARD ERROR OF CR = 0.0022 ACTUAL STANDARD ERROR OF CR = 0.0021 MINIMUM MARGINAL REPRODUCIBILITY = 0.8215 PERCENT IMPROVEMENT = 0.0920 COEFFICIENT OF SCALABILITY = 0.5157 COEFFICIENT OF REPRODUCIBILITY WAVE 1 = 0.9352 (0.9313 -> 0.9391) ESTIMATED STANDARD ERROR OF CR = 0.0020 ACTUAL STANDARD ERROR OF CR = 0.0019 MINIMUM MARGINAL REPRODUCIBILITY = 0.8499 PERCENT IMPROVEMENT