Table 1 Demographical information and mean scores on the questionnaires for the total group and separate for participants scoring low and high on apathy.

From: Neural basis of self-initiative in relation to apathy in a student sample

Variables

Possible Range1

Total group

Total group

Total group

Low apathy

Low apathy

High apathy

High apathy

Mean (SD) (N = 39)

Min/Max

τ with AES-S2

Mean (SD) (N = 20)

Min/Max

Mean (SD) (N = 19)

Min/Max

Age

—

22.69 (2.27)

18/27

—

22.75 (2.15)

19/27

22.63 (2.45)

18/26

Sex (M/F)

—

—

13/26

—

—

5/15

—

8/11

Education3

—

17.36 (1.89)

14/24

—

17.55 (2.16)

14/24

17.16 (1.57)

14/20

AES-S×

18/72

33.41 (5.33)

25/44

—

29.05 (1.79)

25/31

38 (3.64)

32/44

LARS-AI×

−1

−2.68 (1.26)

−2.6667

0.53**

−3.3 (0.86)

4

−2.03 (1.31)

−2.6667

BDI×

0/63

6.21 (6.35)

0/27

0.53**

2.55 (3.27)

0/12

10.05 (6.6)

0/27

BDI-factor×

0/33

3.28 (4.23)

0/19

0.51**

1 (1.75)

0/6

5.68 (4.76)

0/19

TEPS-ANT×

10/60

43.26 (6.92)

25/55

−0.43**

46.8 (5.24)

33/55

39.53 (6.59)

25/55

TEPS-CON×

8/48

38.69 (5.11)

26/47

−0.32*

40.7 (4.85)

31/47

36.58 (4.59)

26/47

SHAPS×

0/14

1.08 (2.6)

0/14

0.33**

0.9 (3.16)

0/14

1.26 (1.91)

0/7

SPQ-pos×

0/46

7.87 (5.96)

0/23

0.35**

5.35 (4.34)

0/14

10.53 (6.36)

23-Feb

SPQ-neg×

0/43

8.05 (5.86)

0/22

0.58**

4.4 (3.35)

0/11

11.89 (5.56)

22-Feb

PANAS-pos×

10/50

32.41 (7.6)

15/46

−0.38**

35.85 (5.31)

26/46

28.79 (8.07)

15/44

PANAS-neg×

10/50

14.21 (3.68)

10/25

0.18

12.7 (2.58)

10/18

15.79 (4.05)

10/25

SCL-90×

90/450

121.49 (24.76)

92/179

0.46**

108.25 (14.81)

95/157

135.42 (25.74)

92/179

  1. *p < 0.05 is statistically significant. ** Significant after Bonferroni correction, p < 0.005.
  2. ×Significant different means for low and high apathy groups, t-test, p < 0.05.
  3. AES-S = Apathy Evaluation Scale, Self-rated; BDI = Beck Depression Inventory; PANAS = Positive and Negative Schedule; LARS_AI = Lilly Apathy Rating Scale, Action Initiation subscale; SCL-90 = Symptom Checklist; SHAPS = Snaith-Hamilton Pleasure Scale; SPQ = Schizotypal Personality Questionnaire; TEPS = Temporal Experience of Pleasure Scale; TEPS-ANT = Anticipatory pleasure subscale of the TEPS; TEPS-CON = Consummatory subscale of the TEPS.
  4. 1A higher number indicates higher severity, except for PANAS-pos and TEPS.
  5. 2Correlations between apathy scores and other factors are calculated with a Kendall’s Tau test (τ).
  6. 3Years including primary school.
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