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Table 1 Screening and Monthly Questionnaires Used in the Present Study

From: Study protocol for a randomized controlled trial to explore the effects of personalized lifestyle advices and tandem skydives on pleasure in anhedonic young adults

Concept

Questionnaire

Description

Items

Range

Authors

Assessed at:

Demographics

 

Questions on sex, birth date, living situation, romantic relationship, education, employment, current and lifetime psychiatric diagnosis, income

20

  

T0

Exclusion criteria

 

Questions regarding no possession of smartphone, psychiatric treatment, use of psychotropic medication, adverse conditions for skydive (e.g., epilepsy, cardiovascular problems, weight, height, pregnancy), experience with skydive

16

  

T0-T6

Reward responsiveness

RR

Questionnaire assessing reward responsiveness

8

1–4

Van den Berg, Franken, & Muris, 2010 [56]

T0-T6

Pleasure and pleasure loss

DDOPS

Questionnaire assessing pleasure in different domains (i.e., perceptual, social, sexual and personal achievement) and different dimensions (i.e., consummatory, anticipatory, motivational)

31 pleasure level items, 31 pleasure change items

1–100 for level of pleasure, 1–5 for change in pleasure

Masselink et al., submitted

T0-T6

Lifestyle factors

TRAILS lifestyle

Questionnaire assessing the frequency of and amount of time spent on various lifestyle-related activities in a typical week (e.g., traveling to work, hobbies, leisure activities, exercise).

27 + 3–4 extra items per endorsed activity

Yes/no + frequency + time

Ormel et al., 2012 [57]

T0-T6

Substance use

TRAILS substance use

Questionnaire assessing the frequency and amount of smoking, alcohol, soft drugs and hard drugs.

4–12

Differs per question

 

T0-T6

Life events and difficulties

TRAILS + own items

Questionnaire assessing chronic difficulties (e.g., long lasting conflict, chronic disease or handicap, unemployment) and recent life events (i.e., relationship break-up, failing to reach important goal, death of loved one).

13

Yes/no

Ormel et al., 2012 [57]

T0-T6

Depressive symptoms

PHQ-9

Questionnaire assessing depressive symptoms in the past two weeks, based on the DSM-IV criteria for depression.

9

0-3

Kroenke, Spitzer, & Williams, 2001 [58]

T0-T6

Psychopathology

ASR

Questionnaire assessing various mental health problems in the past six months.

123

0–2

Achenbach & Rescorla, 2001 [59]

T0, T5, T6

Positive affect

PA

Questionnaire assessing general positive affect, which was partly based on previous research and partly newly constructed.

11

 

Wichers et al., 2007; Wichers, Lothmann, Simons, Nicolson, & Peeters, 2012 [60, 61]

T0-T6

Effortful control

ATQ-EC

Questionnaire assessing activation control, attentional control and inhibitory control.

19

1–7

Evans & Rothbart, 2007 [62]

T0, T4

Extraversion

BFI-E

The extraversion subscale from the Big Five Inventory.

8

1–5

Denissen, Geenen, van Aken, Gosling, & Potter, 2008 [63]

T0

Self-efficacy

GSS

Questionnaire assessing general self-efficacy.

10

1–4

Teeuw, Schwarzer, & Jerusalem, 1994 [64]

T0-T6

Social comparison

SCS

Questionnaire assessing different aspects of social comparison: judgments with regard to social rank, social attractiveness, and social group fit.

10

1–10

Allan & Gilbert, 1995 [65]

T0-T6

Consummatory and anticipatory pleasure

TEPS

Questionnaire assessing the general level of consummatory (9 items) and anticipatory pleasure (9 items).

18

1–6

Gard, Gard, Kring, & John, 2006 [66]

T0

Facial emotion recognition

FER morphing task

Task consisting of 24 video clips in which a neutral face morphs into a face with an emotional expression of anger, fear, sadness or happiness. Assesses average reaction time (i.e., speed) and number of correctly identified emotions (i.e., accuracy).

24

n/a

Heuer, Lange, Isaac, Rinck, & Becker, 2010 [67]

T0, T2, T3, T4