Skip to main content

Advertisement

Table 2 Estimated means and standard deviations of knowledge, attitude towards alcohol and intention to drink alcohol per wave, and effect sizes for differences between conditions in changes between waves

From: The effects of narrative versus non-narrative information in school health education about alcohol drinking for low educated adolescents

  M (SD) ES for differences between conditions Cohen’s d
  T1 T2 T3 T1-T2 T1-T3 T2-T3
Knowledge     -.14 .07 .20
  Non-narrative 3.13 (1.41)a 3.76 (1.65) 2.94 (1.52)a    
  Narrative 3.14 (1.56)b 3.57 (1.51) 3.05 (1.40)b    
  Overall 3.14 (1.49)c 3.66 (1.57) 3.00 (1.46)c    
Attitude towards alcohol     -.07 -.04 .03
  Non-narrative 1.76 (.69)d 1.67 (.68)d 1.72 (.69)d    
  Narrative 1.81 (.74)e 1.67 (.67)f 1.74 (.71)e,f    
  Overall 1.79 (.72)g 1.67 (.67) 1.74 (.70)g    
Intention to drink alcohol     -.07 -.01 -.08
  Non-narrative 1.68 (.66)h 1.68 (.69)h 1.72 (.70)h    
  Narrative 1.71 (.71)i 1.66 (.71)i 1.74 (.77)i    
  Overall 1.69 (.69)j 1.67 (.70)j 1.73 (.74)j    
  1. Note. Superscript indicates group means that do not differ significantly (p > .05) between waves according to the Bonferoni corrected post-hoc test