|
2 × 2 Factorial Design
|
---|
|
Overall
|
2 page/Letter
|
2 page/Postcard
|
4 page/Letter
|
4 page/Postcard
|
---|
Overall (N)
|
780
|
188
|
191
|
199
|
202
|
Gender
| | | | | |
Female
|
392 (50.3)
|
96 (51.1)
|
97 (50.8)
|
101 (50.8)
|
98 (48.5)
|
Male
|
388 (49.7)
|
92 (48.9)
|
94 (49.2)
|
98 (49.2)
|
104 (51.5)
|
Age
| | | | | |
25 - 29
|
114 (14.6)
|
24 (12.8)
|
31 (16.2)
|
24 (12.1)
|
35 (17.3)
|
30 - 39
|
199 (25.5)
|
50 (26.6)
|
49 (25.6)
|
52 (26.1)
|
48 (23.8)
|
40 - 49
|
211 (27.1)
|
49 (26.1)
|
49 (25.6)
|
61 (30.6)
|
52 (25.7)
|
50 - 59
|
187 (24.0)
|
47 (25.0)
|
48 (25.1)
|
45 (22.6)
|
47 (23.3)
|
60 - 65
|
69 (8.8)
|
18 (9.6)
|
14 (7.3)
|
17 (8.5)
|
20 (9.9)
|
Mean (SD)
|
43.8 (11.2)
|
44.3 (11.3)
|
43.3 (11.1)
|
43.9 (10.9)
|
43.8 (11.6)
|
Race
| | | | | |
White
|
582 (74.6)
|
140 (74.5)
|
151 (79.1)
|
147 (73.9)
|
144 (71.3)
|
Non-white *
|
58 (7.4)
|
17 (9.0)
|
10 (5.2)
|
15 (7.5)
|
16 (7.9)
|
Unknown/Other
|
140 (18.0)
|
31 (16.5)
|
30 (15.7)
|
37 (18.6)
|
42 (20.8)
|
- Note: In the factorial design, the distributions of gender, age, and race were not statistically significantly different between survey lengths or notification types.
- * "Non-white" includes: American Indian/Alaskan Native, Black or African American, Native Hawaiian/Pacific Islander, and Asian.