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Table 2 Descriptive statistics for the APSA items at baseline and subscale assignment

From: Measuring subjective complaints of attention and performance failures - development and psychometric validation in tinnitus of the self-assessment scale APSA

Item # Description Mean (SD) at Baseline for N = 213 “Never”Response (%Subjects) Items used for the APS20 Score Items used for the AP-F1/AP-F2 Score
1 Do things not intended to 1.37 (1.15) 30.52 APS20 AP-F1
2 Start over when interrupted 1.54 (1.05) 16.43   
3 Sound disturb reading 1.62 (1.09) 16.90 APS20 AP-F2
4 Make mistakes if low effort 1.52 (0.95) 14.62 APS20 AP-F1
5 Concentrate short period 1.60 (1.04) 14.55 APS20 AP-F2
6 Can't express/tip of tongue 1.70 (1.04) 15.02 APS20 AP-F1
7 Keep doing incorrect task 0.57 (0.79) 58.68   
8 Important do tasks well 3.65 (0.71) 1.42   
9 Pressure in ears 1.87 (1.23) 18.31   
10 Difficult follow conversation >1 talking 2.05 (1.18) 10.85 APS20 AP-F2
11 Stressed after work 2.09 (1.06) 7.89   
12 Daydream instead of listen 1.54 (0.92) 13.62 APS20 AP-F2
13 Distracted by sounds when tired 1.77 (1.09) 13.62 APS20 AP-F2
14 No point start task when weighing on mind 1.02 (0.91) 33.80 APS20  
15 Impatient at work 1.59 (0.93) 11.27 APS20 AP-F2
16 Act differently than planned 1.26 (0.93) 23.94 APS20 AP-F1
17 Satisfied with concentration 2.37 (0.96) 4.74   
18 More focused when deadline 2.52 (1.11) 6.57   
19 Sudden forgetfulness 1.66 (0.98) 13.15 APS20 AP-F1
20 Work better when no music 1.67 (1.26) 22.17   
21 Mistake easily when tired 1.37 (0.97) 11.27 APS20  
22 Pain influence work 1.39 (1.08) 26.29   
23 Forget appointments 0.91 (0.95) 41.78 APS20 AP-F1
24 Can’t find things 1.36 (1.10) 26.42 APS20 AP-F1
25 Concentration suffer when tinnitus severe 2.04 (1.11) 12.21   
26 Return home after forgot things 1.18 (1.01) 29.58 APS20 AP-F1
27 Difficult follow conversation talking quickly 1.64 (1.23) 23.58 APS20 AP-F2
28 Read repeatedly 1.31 (1.07) 27.23 APS20 AP-F2
29 Wonder whether use word correctly 1.04 (0.99) 35.68 APS20 AP-F1
30 Mind wandered 1.70 (1.01) 11.27 APS20 AP-F2
  1. (Item 17 not reversed).