The Dutch Social Interaction Anxiety Scale and the Social Phobia Scale: Reliability, Validity, and Clinical Utility
Table 4
Convergent and discriminant validity: correlation coefficients* of the SIAS and SPS with the IIS (); the BSI, and the LSAS (both ).
SIAS-total
SPS-total
SPS-1
SPS-2
SPS-3
ISS Anxiety
Criticizing
0.54
0.37
0.33
0.44
0.16
Stating one’s opinion
0.55
0.46
0.36
0.52
0.32
Complimenting someone
0.43
0.34
0.29
0.32
0.27
Initiating contact
0.68
0.53
0.56
0.58
0.22*
Valuing oneself
0.49
0.40
0.39
0.47
0.17*
Total score anxiety
0.69
0.54
0.49
0.60
0.30
ISS frequency
Criticizing
0.44
0.33
0.32
0.35
0.18*
Stating one’s opinion
0.42
0.37
0.30
0.32
0.37
Complimenting someone
0.25
0.01 (ns)
0.03 (ns)
−0.01 (ns)
0.00 (ns)
Initiating contact
0.53
0.44
0.47
0.41
0.27
Valuing oneself
0.38
0.37
0.36
0.38
0.19*
Total score frequency
0.56
0.46
0.43
0.43
0.34
BSI
Somatic complaints
0.34
0.52
0.44
0.40
0.57
Cognitive functions
0.50
0.52
0.43
0.49
0.46
Interpersonal sensitivity
0.67
0.59
0.56
0.59
0.41
Depression
0.52
0.51
0.46
0.49
0.38
Anxiety
0.37
0.51
0.41
0.42
0.54
Hostility
0.38
0.40
0.34
0.36
0.36
Phobic anxiety
0.53
0.67
0.66
0.55
0.59
Paranoid ideation
0.50
0.49
0.43
0.43
0.44
Psychoticism
0.55
0.54
0.49
0.49
0.44
Total score BSI
0.60
0.67
0.59
0.59
0.59
LSAS anxiety
Performance
0.62
0.71
0.59
0.68
0.60
Interaction
0.65
0.57
0.52
0.57
0.39
Total score anxiety
0.69
0.69
0.60
0.67
0.54
LSAS frequency
Performance
0.50
0.61
0.54
0.55
0.52
Interaction
0.57
0.49
0.47
0.47
0.35
Total score frequency
0.58
0.60
0.55
0.55
0.47
Note: SIAS-total: total score on the SIAS; SPS-total: total score on the SPS. SPS-1: anxiety about being observed; SPS-2: becoming the focus of attention; SPS-3: fear that others will notice anxiety; IIS: inventory of interpersonal situations. BSI: brief symptom inventory, LSAS: Liebowitz social anxiety scale.
*All correlations significant at the 0.01 level (2-tailed), except those marked with *(, two-tailed test or ns: not significant).
**The ISS was administered in routine outcome monitoring only for a limited time period.
