Table 1 |
|||||
|
Comparison between statistical data for the original and augmented samples |
|||||
|
Survey Item |
Data Entries |
Mean |
95% CI |
5% Trim. Mean |
SD |
|
|
|||||
|
1 |
Participants, n = 23 |
3.64 |
3.39–3.88 |
3.70 |
.5680 |
|
Iterations, n = 1001 |
3.64 |
3.63–3.65 |
3.64 |
.1157 |
|
|
Iterations, n = 2001 |
3.64 |
3.63–3.64 |
3.64 |
.1172 |
|
|
2 |
Participants, n = 23 |
3.64 |
3.39–3.88 |
3.70 |
.5680 |
|
Iterations, n = 1001 |
3.64 |
3.63–3.65 |
3.64 |
.1154 |
|
|
Iterations, n = 2001 |
3.64 |
3.63–3.64 |
3.64 |
.1151 |
|
|
3 |
Participants, n = 23 |
3.46 |
3.12–3.79 |
3.55 |
.7820 |
|
Iterations, n = 1001 |
3.45 |
3.44–3.46 |
3.46 |
.1582 |
|
|
Iterations, n = 2001 |
3.46 |
3.45–3.46 |
3.46 |
.1589 |
|
|
4 |
Participants, n = 23 |
3.26 |
2.99–3.53 |
3.29 |
.6190 |
|
Iterations, n = 1001 |
3.26 |
3.26–3.27 |
3.27 |
.1257 |
|
|
Iterations, n = 2001 |
3.26 |
3.25–3.26 |
3.26 |
.1276 |
|
|
5 |
Participants, n = 23 |
3.13 |
2.89–3.37 |
3.14 |
.5480 |
|
Iterations, n = 1001 |
3.13 |
3.13–3.14 |
3.13 |
.1093 |
|
|
Iterations, n = 2001 |
3.13 |
3.13–3.14 |
3.13 |
.1133 |
|
|
6 |
Participants, n = 23 |
3.22 |
2.93–3.51 |
3.24 |
.6710 |
|
Iterations, n = 1001 |
3.22 |
3.21–3.23 |
3.22 |
.1347 |
|
|
Iterations, n = 2001 |
3.22 |
3.21–3.22 |
3.22 |
.1371 |
|
|
7 |
Participants, n = 23 |
3.11 |
2.85–3.36 |
3.12 |
.5950 |
|
Iterations, n = 1001 |
3.10 |
3.09–3.11 |
3.10 |
.1235 |
|
|
Iterations, n = 2001 |
3.10 |
3.10–3.11 |
3.10 |
.1226 |
|
|
8 |
Participants, n = 23 |
3.14 |
2.81–3.46 |
3.20 |
.7570 |
|
Iterations, n = 1001 |
3.14 |
3.13–3.14 |
3.14 |
.1505 |
|
|
Iterations, n = 2001 |
3.14 |
3.13–3.14 |
3.14 |
.1569 |
|
|
9 |
Participants, n = 23 |
3.18 |
2.85–3.52 |
3.25 |
.7770 |
|
Iterations, n = 1001 |
3.18 |
3.17–3.19 |
3.18 |
.1576 |
|
|
Iterations, n = 2001 |
3.18 |
3.18–3.19 |
3.19 |
.1580 |
|
|
10 |
Participants, n = 23 |
3.17 |
2.93–3.40 |
3.18 |
.5436 |
|
Iterations, n = 1001 |
3.17 |
2.95–3.38 |
3.16 |
.1088 |
|
|
Iterations, n = 2001 |
3.17 |
2.95–3.38 |
3.15 |
.1098 |
|
|
11 |
Participants, n = 23 |
3.30 |
2.95–3.66 |
3.39 |
.8220 |
|
Iterations, n = 1001 |
3.30 |
3.29–3.31 |
3.30 |
.1685 |
|
|
Iterations, n = 2001 |
3.31 |
3.30–3.31 |
3.31 |
.1652 |
|
|
12 |
Participants, n = 23 |
3.09 |
2.74–3.43 |
3.14 |
.7930 |
|
Iterations, n = 1001 |
3.09 |
3.08–3.10 |
3.09 |
.1600 |
|
|
Iterations, n = 2001 |
3.09 |
3.08–3.10 |
3.09 |
.1583 |
|
|
13 |
Participants, n = 23 |
2.87 |
2.54–3.20 |
2.90 |
.7570 |
|
Iterations, n = 1001 |
2.86 |
2.86–2.87 |
2.87 |
.1489 |
|
|
Iterations, n = 2001 |
2.87 |
2.86–2.88 |
2.87 |
.1528 |
|
|
14 |
Participants, n = 23 |
2.53 |
2.23–2.82 |
2.59 |
.6821 |
|
Iterations, n = 1001 |
2.52 |
2.52–2.53 |
2.53 |
.1412 |
|
|
Iterations, n = 2001 |
2.83 |
2.82–2.83 |
2.83 |
.1578 |
|
|
15 |
Participants, n = 23 |
2.83 |
2.49–3.16 |
2.86 |
.7780 |
|
Iterations, n = 1001 |
2.82 |
2.81–2.83 |
2.83 |
.1594 |
|
|
Iterations, n = 2001 |
2.83 |
2.82–2.83 |
2.83 |
.1578 |
|
|
16 |
Participants, n = 23 |
3.23 |
2.91–3.54 |
3.25 |
.7340 |
|
Iterations, n = 1001 |
3.23 |
3.22–3.24 |
3.23 |
.1495 |
|
|
Iterations, n = 2001 |
3.23 |
3.22–3.23 |
3.23 |
.1490 |
|
|
17 |
Participants, n = 23 |
3.35 |
3.01–3.68 |
3.39 |
.7750 |
|
Iterations, n = 1001 |
3.35 |
3.34–3.36 |
3.35 |
.1569 |
|
|
Iterations, n = 2001 |
3.35 |
3.34–3.36 |
3.35 |
.1557 |
|
|
18 |
Participants, n = 23 |
3.39 |
3.08–3.70 |
3.43 |
.7220 |
|
Iterations, n = 1001 |
3.39 |
3.39–3.40 |
3.40 |
.1455 |
|
|
Iterations, n = 2001 |
3.39 |
3.38–3.40 |
3.39 |
.1483 |
|
|
19 |
Participants, n = 23 |
3.33 |
3.01–3.65 |
3.42 |
.7390 |
|
Iterations, n = 1001 |
3.33 |
3.32–3.33 |
3.33 |
.1536 |
|
|
Iterations, n = 2001 |
3.33 |
3.33–3.34 |
3.33 |
.1528 |
|
|
20 |
Participants, n = 23 |
3.57 |
3.28–3.85 |
3.63 |
.6620 |
|
Iterations, n = 1001 |
3.57 |
3.56–3.58 |
3.57 |
.1318 |
|
|
Iterations, n = 2001 |
3.56 |
3.56–3.57 |
3.56 |
.1355 |
|
|
21 |
Participants, n = 23 |
2.96 |
2.65–3.26 |
3.00 |
.7057 |
|
Iterations, n = 1001 |
2.96 |
2.67–3.24 |
2.93 |
.1427 |
|
|
Iterations, n = 2001 |
2.96 |
2.68–3.23 |
2.95 |
.1384 |
|
|
22 |
Participants, n = 23 |
3.39 |
3.11–3.68 |
3.43 |
.6560 |
|
Iterations, n = 1001 |
3.39 |
3.38–3.40 |
3.39 |
.1385 |
|
|
Iterations, n = 2001 |
3.39 |
3.38–3.39 |
3.39 |
.1323 |
|
|
23 |
Participants, n = 23 |
3.30 |
2.95–3.66 |
3.39 |
.8220 |
|
Iterations, n = 1001 |
3.30 |
3.29–3.31 |
3.30 |
.1706 |
|
|
Iterations, n = 2001 |
3.30 |
3.30–3.31 |
3.31 |
.1714 |
|
|
24 |
Participants, n = 23 |
3.39 |
3.18–3.61 |
3.38 |
.4990 |
|
Iterations, n = 1001 |
3.39 |
3.39–3.40 |
3.39 |
.1024 |
|
|
Iterations, n = 2001 |
3.39 |
3.39–3.40 |
3.39 |
.0986 |
|
|
25 |
Participants, n = 23 |
3.48 |
3.22–3.73 |
3.52 |
.5930 |
|
Iterations, n = 1001 |
3.48 |
3.47–3.49 |
3.48 |
.1243 |
|
|
Iterations, n = 2001 |
3.47 |
3.47–3.48 |
3.48 |
.1195 |
|
|
26 |
Participants, n = 23 |
2.83 |
2.42–3.23 |
2.86 |
.9370 |
|
Iterations, n = 1001 |
2.83 |
2.81–2.84 |
2.83 |
.1874 |
|
|
Iterations, n = 2001 |
2.82 |
2.82–2.83 |
2.82 |
.1915 |
|
|
27 |
Participants, n = 23 |
2.89 |
2.61–3.18 |
2.93 |
.6670 |
|
Iterations, n = 1001 |
2.89 |
2.89–2.90 |
2.90 |
.1387 |
|
|
Iterations, n = 2001 |
2.89 |
2.89–2.90 |
2.89 |
.1369 |
|
|
28 |
Participants, n = 23 |
3.26 |
2.91–3.61 |
3.34 |
.8100 |
|
Iterations, n = 1001 |
3.26 |
3.25–3.27 |
3.27 |
.1744 |
|
|
Iterations, n = 2001 |
3.26 |
3.25–3.26 |
3.26 |
.1675 |
|
|
29 |
Participants, n = 23 |
2.83 |
2.44–3.21 |
2.86 |
.8870 |
|
Iterations, n = 1001 |
2.82 |
2.81–2.84 |
2.83 |
.1845 |
|
|
Iterations, n = 2001 |
2.83 |
2.82–2.84 |
2.83 |
.1814 |
|
|
30 |
Participants, n = 23 |
3.43 |
3.12–3.75 |
3.48 |
.7280 |
|
Iterations, n = 1001 |
3.44 |
3.43–3.45 |
3.44 |
.1496 |
|
|
Iterations, n = 2001 |
3.44 |
3.43–3.44 |
3.44 |
.1473 |
|
|
31 |
Participants, n = 23 |
3.09 |
2.74–3.43 |
3.14 |
.7930 |
|
Iterations, n = 1001 |
3.08 |
3.07–3.09 |
3.09 |
.1576 |
|
|
Iterations, n = 2001 |
3.09 |
3.08–3.09 |
3.09 |
.1639 |
|
|
32 |
Participants, n = 23 |
3.06 |
2.75–3.36 |
3.11 |
.7050 |
|
Iterations, n = 1001 |
3.05 |
3.04–3.06 |
3.05 |
.1500 |
|
|
Iterations, n = 2001 |
3.05 |
3.05–3.06 |
3.06 |
.1428 |
|
|
33 |
Participants, n = 23 |
3.17 |
2.84–3.51 |
3.24 |
.7780 |
|
Iterations, n = 1001 |
3.17 |
3.16–3.18 |
3.17 |
.1602 |
|
|
Iterations, n = 2001 |
3.17 |
3.17–3.18 |
3.18 |
.1579 |
|
|
34 |
Participants, n = 23 |
3.26 |
2.94–3.59 |
3.34 |
.7520 |
|
Iterations, n = 1001 |
3.27 |
3.26–3.28 |
3.28 |
.1528 |
|
|
Iterations, n = 2001 |
3.26 |
3.26–3.27 |
3.27 |
.1512 |
|
|
35 |
Participants, n = 23 |
3.39 |
3.11–3.68 |
3.43 |
.6560 |
|
Iterations, n = 1001 |
3.39 |
3.39–3.40 |
3.40 |
.1333 |
|
|
Iterations, n = 2001 |
3.39 |
3.38–3.39 |
3.39 |
.1314 |
|
|
36 |
Participants, n = 23 |
3.06 |
2.85–3.26 |
3.06 |
.4740 |
|
Iterations, n = 1001 |
3.06 |
3.05–3.07 |
3.06 |
.0991 |
|
|
Iterations, n = 2001 |
3.06 |
3.05–3.06 |
3.06 |
.0972 |
|
|
37 |
Participants, n = 23 |
3.32 |
3.05–3.59 |
3.35 |
.6310 |
|
Iterations, n = 1001 |
3.31 |
3.30–3.32 |
3.31 |
.1282 |
|
|
Iterations, n = 2001 |
3.31 |
3.31–3.32 |
3.31 |
.1294 |
|
|
38 |
Participants, n = 23 |
2.89 |
2.60–3.18 |
2.93 |
.6670 |
|
Iterations, n = 1001 |
2.89 |
2.88–2.90 |
2.89 |
.1369 |
|
|
Iterations, n = 2001 |
2.89 |
2.89–2.90 |
2.89 |
.1346 |
|
|
39 |
Participants, n = 23 |
3.22 |
2.90–3.54 |
3.24 |
.7360 |
|
Iterations, n = 1001 |
3.22 |
3.21–3.23 |
3.22 |
.1543 |
|
|
Iterations, n = 2001 |
3.48 |
3.47–3.48 |
3.48 |
.1022 |
|
|
40 |
Participants, n = 23 |
3.48 |
3.16–3.79 |
3.53 |
.7300 |
|
Iterations, n = 1001 |
3.48 |
3.47–3.49 |
3.48 |
.1519 |
|
|
Iterations, n = 2001 |
3.48 |
3.47–3.48 |
3.48 |
.1465 |
|
|
41 |
Participants, n = 23 |
3.39 |
3.08–3.70 |
3.43 |
.7220 |
|
Iterations, n = 1001 |
3.40 |
3.39–3.41 |
3.40 |
.1492 |
|
|
Iterations, n = 2001 |
3.40 |
3.39–3.40 |
3.40 |
.1450 |
|
|
42 |
Participants, n = 23 |
3.65 |
3.44–3.86 |
3.67 |
.4870 |
|
Iterations, n = 1001 |
3.65 |
3.64–3.66 |
3.65 |
.1041 |
|
|
Iterations, n = 2001 |
3.65 |
3.65–3.66 |
3.65 |
.1003 |
|
|
43 |
Participants, n = 23 |
3.61 |
3.32–3.89 |
3.68 |
.6560 |
|
Iterations, n = 1001 |
3.61 |
3.60–3.62 |
3.61 |
.1338 |
|
|
Iterations, n = 2001 |
3.61 |
3.60–3.61 |
3.61 |
.1362 |
|
|
44 |
Participants, n = 23 |
3.61 |
3.39–3.82 |
3.62 |
.4990 |
|
Iterations, n = 1001 |
3.61 |
3.60–3.62 |
3.61 |
.1020 |
|
|
Iterations, n = 2001 |
3.61 |
3.60–3.61 |
3.61 |
.1036 |
|
|
45 |
Participants, n = 23 |
3.30 |
3.00–3.61 |
3.34 |
.7030 |
|
Iterations, n = 1001 |
3.31 |
3.30–3.32 |
3.31 |
.1461 |
|
|
Iterations, n = 2001 |
3.30 |
3.30–3.31 |
3.30 |
.1424 |
|
|
46 |
Participants, n = 23 |
3.43 |
3.07–3.80 |
3.53 |
.8430 |
|
Iterations, n = 1001 |
3.43 |
3.42–3.45 |
3.44 |
.1814 |
|
|
Iterations, n = 2001 |
3.44 |
3.43–3.44 |
3.44 |
.1735 |
|
|
47 |
Participants, n = 23 |
3.39 |
3.11–3.68 |
3.43 |
.6560 |
|
Iterations, n = 1001 |
3.39 |
3.38–3.40 |
3.39 |
.1306 |
|
|
Iterations, n = 2001 |
3.39 |
3.38–3.40 |
3.39 |
.1368 |
|
|
48 |
Participants, n = 23 |
3.48 |
3.26–3.70 |
3.48 |
.5110 |
|
Iterations, n = 1001 |
3.48 |
3.47–3.48 |
3.48 |
.1037 |
|
|
Iterations, n = 2001 |
3.48 |
3.47–3.48 |
3.48 |
.1022 |
|
|
49 |
Participants, n = 23 |
3.61 |
3.39–3.82 |
3.62 |
.4990 |
|
Iterations, n = 1001 |
3.61 |
3.60–3.62 |
3.61 |
.1018 |
|
|
Iterations, n = 2001 |
3.60 |
3.60–3.61 |
3.60 |
.1003 |
|
|
50 |
Participants, n = 23 |
3.26 |
2.94–3.59 |
3.29 |
.7520 |
|
Iterations, n = 1001 |
3.25 |
3.25–3.26 |
3.26 |
.1490 |
|
|
Iterations, n = 2001 |
3.27 |
3.26–3.27 |
3.27 |
.1527 |
|
|
51 |
Participants, n = 23 |
3.30 |
3.03–3.58 |
3.34 |
.6350 |
|
Iterations, n = 1001 |
3.31 |
3.30–3.31 |
3.31 |
.1313 |
|
|
Iterations, n = 2001 |
3.30 |
3.30–3.31 |
3.30 |
.1316 |
|
|
52 |
Participants, n = 23 |
3.39 |
3.11–3.68 |
3.43 |
.6560 |
|
Iterations, n = 1001 |
3.39 |
3.38–3.40 |
3.39 |
.1336 |
|
|
Iterations, n = 2001 |
3.39 |
3.39–3.40 |
3.39 |
.1325 |
|
|
53 |
Participants, n = 23 |
3.18 |
2.85–3.50 |
3.25 |
.7530 |
|
Iterations, n = 1001 |
3.18 |
3.17–3.19 |
3.18 |
.1542 |
|
|
Iterations, n = 2001 |
3.18 |
3.17–3.19 |
3.18 |
.1543 |
|
|
54 |
Participants, n = 23 |
3.18 |
2.85–3.50 |
3.25 |
.7530 |
|
Iterations, n = 1001 |
3.17 |
3.16–3.18 |
3.17 |
.1556 |
|
|
Iterations, n = 2001 |
3.18 |
3.18–3.19 |
3.18 |
.1550 |
|
|
|
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|
Akins et al. BMC Medical Research Methodology 2005 5:37 doi:10.1186/1471-2288-5-37 |
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