Skip to main content

Table 1 Two-parameter item-response theory model of gambling behaviour

From: Adolescent gambling behaviour, a single latent construct and indicators of risk: findings from a national survey of New Zealand high school students

  Prevalence (%) Factor loadings Item discrimination Item severity
Estimate Standard error Estimate Standard error
I gamble to relax 6.0 0.848 1.603 0.133 1.841 0.068
I gamble to feel better about myself 2.9 0.981 5.044 1.913 1.928 0.060
I gamble to forget about things 3.7 0.914 2.246 0.256 1.954 0.073
I gamble because I can’t stop 1.6 0.885 1.902 0.295 2.431 0.116
Gamble ‘several times a week’ or ‘most days’ 2.6 0.806 1.361 0.206 2.412 0.159
Spend $20 or more per week on gambling 5.0 0.789 1.284 0.123 2.101 0.100
Spend 1 or more hours per day gambling 3.1 0.866 1.730 0.240 2.189 0.101