With MDD (n = 6)

Intervention (n = 4)

Waitlist (n = 2)
  

Outcome

Time

Mean (SD)

Mean (SD)

pvalue*

d**


DASSD

1

11.00 (4.69)

8.00 (0)

.020

2.09

2

5.25 (2.87)

7.5 (0.71)

DASSA

1

9.75 (2.36)

4.00 (1.41)

.050

1.19

2

6.25 (3.3)

4.00 (1.41)

DASSS

1

11.75 (0.96)

7.50 (3.53)

.029

1.10

2

9.75 (0.50)

7.50 (3.53)

Without MDD (n = 12)

Intervention (n = 7)

Waitlist (n = 5)
  
Outcome

Time

Mean (SD)

Mean (SD)

pvalue*

d**

DASSD

1

9.57 (3.36)

12.2 (5.49)

.320

.26

2

6.71 (2.29)

10.6 (7.27)

DASSA

1

9.14 (2.41)

9.80 (4.76)

.065

.84

2

5.86 (2.34)

9.40 (4.62)

DASSS

1

10.00 (4.00)

8.80 (5.17)

.365

.38


2

8.29 (2.14)

8.40 (4.72)
  
 DASSD = DASSDepression, DASSA = DASSAnxiety, DASSS = DASSStress, PDQ39 = Parkinson’s Disease Questionnaire39, CCLD = Cognitions ChecklistDepressive Cognitions, CCLA = Cognitions ChecklistAnxious Cognitions.
 *pvalue for Time x Condition interaction effect.
 **Cohen’s d as computed by $\frac{{M}_{\mathit{T\Delta}}{M}_{\mathit{C\Delta}}}{S{D}_{\mathit{\text{pooled}}}}$.