From: Bias and heteroscedastic memory error in self-reported health behavior: an investigation using covariance structure analysis
Period
Mean
Std.dev.
1st qrt.
Median
3rd qrt.
Max.
> 5 years
7.34
11.42
1
3
9
125
< 5 years
3.32
5.32
70
< 2 years
1.78
2.25
2
25
< 1 year
1.26
1.02
12