Table 2.
Sample device use.
| Variable | PFa, n | IFb, n | χ2 | Total, N=49 | dfc | P | |
| Use computer daily |
|
|
0.2 | 49 | 1 | .626 | |
| Yes | 24 | 22 |
|
|
|
|
|
| No | 2 | 1 |
|
|
|
|
|
| Use mobile device daily |
|
|
3.5 | 49 | 1 | .062 | |
| Yes | 10 | 15 |
|
|
|
|
|
| No | 16 | 8 |
|
|
|
|
|
| Use smartphone |
|
|
0.3 | 49 | 1 | .560 | |
| Yes | 6 | 7 |
|
|
|
|
|
| No | 20 | 16 |
|
|
|
|
|
| Use tablet or e-reader |
|
|
0.8 | 49 | 1 | .357 | |
| Yes | 8 | 10 |
|
|
|
|
|
| No | 18 | 13 |
|
|
|
|
|
aPF=Paper-first group
bIF=iPad-first group
cdf=degrees of freedom