Table 2 Statistics and directions of the effects in the exploratory models for depression, anxiety, and burnout. Columns “direction” include information on whether increasing values of the predictor were linked to increasing ( >) or decreasing ( <) values of the dependent variables (questionnaire scores). Post-hoc comparisons with Holm correction were administered for “Years in Germany” in all models, but none of the contrasts survived the corrections.

From: Doctoral researchers’ mental health and PhD training satisfaction during the German COVID-19 lockdown: results from an international research sample

 

Depression model

Anxiety model

Burnout model

F value

Direction

F value

Direction

F value

Direction

Demographic and support structures

Gender

11.6***

M > F

18.6***

M > F

4.2*

F > M

Year of PhD

0.2

<

1.3

<

  

PhD type

    

11.3***

Individual > Structured

Years in Germany

4.7*

Native < 4 +  < 0–3, no pcorr sig

3.1*

Native & 4 +  < 0–3, no pcorr sig

8.5***

0–3 & native < 4 + , no pcorr sig

Diagnosed disorder

8.9**

Yes > No

7.4**

Yes > No

4.5*

Yes > No

Social network (general)

12.8***

<

7.4**

<

  

Self-efficacy

    

45.2***

<

Satisfaction with PhD aspects

Overall

33***

<

27.7***

<

75.3***

<

Supervision

    

11**

 < 

Work environment

  

0.4

>

  

Work-life balance

13.6***

<

5.3*

<

24.3***

<

Career perspectives

7.9**

<

9.9**

<

  

Holidays

9.3**

<

  

25.2***

<

Workload

0.03

>

    

Model statistics

F (df)

9.7 (11,186)

8.4 (10,187)

21.8 (10,187)

R2multiple/R2adjusted

0.37/0.33

0.31/0.27

0.54/0.51

  1. *p < 0.05, **p < 0.01, ***p < 0.001.
  2. Degrees of freedom for main effects’ F values:
  3. Numerator df: 2 for “years in Germany” and 1 for all others.
  4. Denominator df: depression model: 186, anxiety and burnout model: 187.