Table 1.
Descriptive Statistics, Internal Consistency Reliability and Test-retest Reliability for Media Processing and Critical Thinking Variables
| Scale range | Sample A (N = 216) | Sample B (N = 208) | |||||||
|---|---|---|---|---|---|---|---|---|---|
| Time 1 | Time 1 | Time 2 | |||||||
| Mean (SD) | α | CR | Mean (SD) | α | CR | Mean (SD) | ICC | ||
| Media attitudes questionnaire (MAQ) | |||||||||
| Realism scepticism subscale | 1 to 5 | 4.13 (0.94) | .80 a | .80 | 3.80 (1.06) | .87 | .86 | 4.10 (0.99) | .64*** |
| Similarity scepticism subscale | 1 to 5 | 3.49 (1.12) | .83 | .85 | 3.37 (1.00) | .76 | .79 | 3.49 (1.04) | .81*** |
| Desirability scepticism subscale | 1 to 5 | 2.90 (1.03) | .82 | .84 | 2.94 (0.98) | .79 | .80 | 3.16 (1.04) | .70*** |
| Critical thinking about media messages | 6 to 36 | 17.56 (6.91) | .90 | .90 | NA | NA | NA | NA | NA |
| Critical thinking about media messages – Appearance focus | 6 to 36 | 15.78 (7.94) | .95 | .95 | NA | NA | NA | NA | NA |
| Fake subscale | 1 to 5 | NA | NA | NA | 3.04 (0.99) | .92 | .93 | 3.06 (1.07) | .80*** |
Note. α Cronbach’s alpha, CR construct reliability, ICC intraclass correlation coefficient, NA data not available
*p < .05; **p < .01; ***p < .001
aSpearman-Brown coefficient calculated for internal consistency of a two-item scale