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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).