Table 1.
Sample characteristics and behavioral data.
| Characteristic | Social anxiety disorder (n=25) | Controls (n=22) | Test statistic | P value | ||||||||||
| Sex, n |
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0.14 (1)a | .71 | ||||||||||
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Male | 15 | 12 |
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|
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Female | 10 | 10 |
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|
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| Age (years), mean (SD) | 23.04 (3.35) | 23.95 (3.50) | –0.92 (45)b | .36 | ||||||||||
| Handedness, n |
|
|
1.36 (2)a | .51 | ||||||||||
|
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Left | 0 | 1 |
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|
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Right | 23 | 20 |
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|
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Both | 2 | 1 |
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|
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| Education (years), mean (SD) | 14.44 (1.45) | 15.09 (1.88) | –1.34 (45)b | .19 | ||||||||||
| Social Phobia Scale, mean (SD) | 32.52 (13.17) | 6.05 (5.26) | –5.67c | <.001 | ||||||||||
| Negative PERSd, mean (SD) | 32.24 (11.18) | 8.18 (6.23) | 79.92 (1,45)e | <.001 | ||||||||||
| Positive PERSd, mean (SD) | 13.84 (5.41) | 26.64 (9.44) | 4.28c | <.001 | ||||||||||
| Personal Relevance Rating Task, mean (SD) |
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Personal relevance rating |
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Positive | 1.97 (.57) | 2.52 (.41) | 14.23 (.24)f | <.001 | ||||||||
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Neutral | 2.01 (.30) | 1.80 (.35) | 5.11 (.10)f | .03 | ||||||||
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Negative | 2.24 (.42) | 1.61 (.48) | 22.53 (.33)f | <.001 | ||||||||
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Reaction time (milliseconds) |
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Positive | 1567.5 (842.7) | 1174.8 (761.4) | 2.78 (.06)f | .10 | ||||||||
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Neutral | 1601.7 (784.9) | 1270.2 (547.3) | 2.75 (.06)f | .10 | ||||||||
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Negative | 1539.8 (720.0) | 1187.0 (549.0) | 3.49 (.07)f | .07 | ||||||||
aChi square (df).
bt test statistic (df).
cMann–Whitney U test Z statistic.
dPERS: Post-Event Rumination Scale. Task response ratings were scored on a 3-point Likert scale (1=not relevant; 2=somewhat relevant; 3=relevant).
eF(df1,df2).
fF(η2p).