Table 1. Passive information survey results.
Pre- and post-survey means by cohort (standard deviation below), within cohort change in mean survey score (standard deviation below), and pairwise difference in the within cohort change between cohorts. For binomial variables the proportion responding ‘yes’ or the change in proportion of ‘yes’ responses. Index variables show Cronbach’s alpha in ().
| pre-survey | post-survey | within cohort change | between cohort post-pre | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| control.0 | single.0 | multi.0 | control.1 | single.1 | multi.1 | Δcontrol | Δsingle | Δmulti | single-control | multi-control | multi-single | ||||||
| Familiar | 4.2 | 4.04 | 4.06 | 4.23 | 4.49 | 4.52 | 0.03 | 0.44 | 0.47 | 0.41 | ** | 0.44 | * | 0.03 | |||
| Familiar.sd | 1.4 | 1.33 | 1.52 | 1.35 | 1.31 | 1.37 | 1.31 | 1.38 | 1.39 | ||||||||
| SA (α(.78) | 5.4 | 5.18 | 5.29 | 5.48 | 5.18 | 5.25 | 0.08 | 0 | -0.04 | -0.08 | -0.12 | -0.04 | |||||
| SA.sd | 0.88 | 0.83 | 0.93 | 0.78 | 0.88 | 0.98 | 0.57 | 0.65 | 0.55 | ||||||||
| SSN (α(.9) | 5.52 | 5.26 | 5.7 | 5.55 | 5.28 | 5.74 | 0.03 | 0.02 | 0.04 | -0.01 | 0.01 | 0.02 | |||||
| SSN.sd | 1.2 | 1.39 | 1.17 | 1.3 | 1.24 | 1.13 | 0.97 | 1.01 | 1.08 | ||||||||
| SPBC(αP.75) | 3.69 | 3.71 | 3.54 | 3.78 | 3.87 | 3.95 | 0.09 | 0.16 | 0.42 | 0.07 | 0.33 | ** | 0.26 | * | |||
| SPBC.sd | 1.26 | 1.26 | 1.17 | 1.41 | 1.12 | 1.2 | 0.96 | 0.97 | 1.02 | ||||||||
| SIquote | 3.02 | 2.89 | 2.85 | 2.92 | 3.22 | 3.26 | -0.1 | 0.33 | 0.4 | 0.43 | . | 0.5 | * | 0.07 | |||
| SI.sd | 1.66 | 1.59 | 1.77 | 1.62 | 1.63 | 1.73 | 1.39 | 1.32 | 1.37 | ||||||||
| proportion responding yes | change within | change between | |||||||||||||||
| SBquotea | 0.13 | 0.16 | 0.08 | 0.13 | 0.21 | 0.14 | 0 | 0.05 | 0.06 | 0.05 | 0.06 | 0.01 | |||||
note:.p < .1
*p < .05
**p < .01
***p < .001.
a Dichotomous variables analyzed using McNemar’s test for within cohort change and generalized linear mixed model for between cohort change.