Appendix B: Improving Measurement
Table B.1: Significance Tests for Growing up in Ireland: the number of results in the dominant direction for the original SCAs and the corresponding value of the significant test.
|
Technology Measure
|
# results in dominant direction
|
p value
|
|
Self-Report
|
4
|
0.13
|
|
Participation (Weekday)
|
3
|
0.68
|
|
Participation (Weekend)
|
4
|
0.11
|
|
Time Spent (Weekday)
|
4
|
0.13
|
|
Time Spent (Weekend)
|
4
|
0.13
|
|
< 30 min (Weekday)
|
4
|
0.13
|
|
< 30 min (Weekend)
|
4
|
0.12
|
|
< 1 hour (Weekday)
|
2
|
1.00
|
|
< 1 hour (Weekend)
|
2
|
1.00
|
|
< 2 hours (Weekday)
|
2
|
1.00
|
|
< 2 hours (Weekend)
|
2
|
1.00
|
Table B.2: Significance Tests for the Panel Study of Income Dynamics: the number of results in the dominant direction for the original SCAs and the corresponding value of the significant test.
|
Technology Measure
|
# results in dominant direction
|
p value
|
|
Self-Report
|
2
|
1.00
|
|
Participation (Weekday)
|
3
|
0.63
|
|
Participation (Weekend)
|
2
|
1.00
|
|
Time Spent (Weekday)
|
4
|
0.14
|
|
Time Spent (Weekend)
|
3
|
0.63
|
|
< 30 min (Weekday)
|
2
|
1.00
|
|
< 30 min (Weekend)
|
4
|
0.12
|
|
< 1 hour (Weekday)
|
2
|
1.00
|
|
< 1 hour (Weekend)
|
4
|
0.11
|
|
< 2 hours (Weekday)
|
4
|
0.13
|
|
< 2 hours (Weekend)
|
4
|
0.12
|
Table B.3: Significance Tests for the Millennium Cohort Study: the number of results in the dominant direction for the original SCAs and the corresponding value of the significant test.
|
Technology Measure
|
# results in dominant direction
|
p value
|
|
Self-Report
|
5
|
0.24
|
|
Participation (Weekday)
|
6
|
0.03
|
|
Participation (Weekend)
|
4
|
0.73
|
|
Time Spent (Weekday)
|
6
|
0.04
|
|
Time Spent (Weekend)
|
4
|
0.67
|
|
< 30 min (Weekday)
|
5
|
0.23
|
|
< 30 min (Weekend)
|
4
|
0.73
|
|
< 1 hour (Weekday)
|
5
|
0.21
|
|
< 1 hour (Weekend)
|
5
|
0.21
|
|
< 2 hours (Weekday)
|
6
|
0.03
|
|
< 2 hours (Weekend)
|
5
|
0.23
|
Table B.4: Significance Tests for the confirmatory hypotheses: the number of results in the dominant direction for the original SCAs and the corresponding value of the significant test.
|
Measure
|
# results in dominant direction
|
p value
|
|
Self-Report
|
5/6
|
0.24
|
|
Time Spent
|
5/6
|
0.04
|
|
< 30 Minutes on Weekday
|
5/6
|
0.23
|
|
< 1 Hour on Weekday
|
5/6
|
0.21
|