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Table 4 Descriptive and reliability statistics for mastery of Guidelines topics (N= 489)

From: What are parents doing to reduce adolescent alcohol misuse? Evaluating concordance with parenting guidelines for adolescent alcohol use

Guidelines topic Minimum Maximum M SD Highest possible total Cut-off score % mastery z Cronbach’s alpha* Agreement coefficient
Knowledge about alcohol1 0.00 1.00 0.65 0.24 1.00 0.80 39.10 1.42 0.69 0.91
Parent–child relationship 0.00 10.00 8.24 1.45 10.00 9.00 47.40 0.18 0.72 0.75
Talking about alcohol 0.00 2.00 1.53 0.71 2.00 2.00 65.60 0.04 0.62 0.70
Modelling 2.00 10.00 7.23 1.70 10.00 10.00 9.40 1.34 0.58 0.88
Family rules 0.00 5.00 2.94 1.09 8.00 5.00 7.20 1.44 0.43 0.88
Monitoring 0.00 5.00 3.67 1.16 5.00 5.00 22.90 0.71 0.57 0.77
Adolescent parties 3.00 15.00 11.87 2.87 15.00 12.00 46.20 0.13 0.80 0.80
Peers2 0.00 6.00 4.35 1.30 6.00 6.00 17.60 0.88 0.51 0.79
Adolescent alcohol misuse 1.00 7.00 4.82 1.57 7.00 7.00 11.90 1.07 0.64 0.88
Total mastery score 0.00 7.00 2.67 1.47 9.00      
  1. Note. *Cronbach’s alpha is not regarded as a useful or meaningful measure of reliability in criterion-referenced testing [17]. They are provided above because they were computed as part of the process of estimating the agreement coefficient using Subkoviak’s [12] table. Knowledge about alcohol was scored as Proportion of true positives (out of 12) minus Proportion of false positives (out of 10), hence the highest total possible score was 1. Peers = Involvement with child’s friends and managing peer influence. z = the cut-off score of the Guidelines topic expressed as a standard score.