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Table 2 Design decisions used in included studies (n = 38)

From: Design decisions and data completeness for experience sampling methods used in psychosis: systematic review

Design decision

n

Study design

 Cohort study

19

 Case control study

17

 Crossover trial

1

 Randomized repeated measures crossover design

1

Sample size

 Mean

73.6

 SD

74.7

Data collection setting

 Hospital

3

 Community

34

Recruitment setting

 Hospital

3

 Community

30

 Hospital and community

2

ESM Protocol

 Event-contingent

0

 Signal-contingent assessments

27

 Time-contingent assessments

7

 Stratified

3

Type of prompt

 Auditory (beep)

2

 Vibrate

25

 Auditory (beep) and vibrate

0

Technology used

 Personal Digital Assistant (PDA)

16

 Smartphone application

14

 Data collection platform

5

 Electronic device

3

Device ownership

 Provided by researcher

34

 Participants provided with device if they didn’t have one

2

Time taken to complete measures (minutes)

 Mean

3.5

 SD

1.22

Type of data being collected

 Experience data

12

 Context data

0

 Behavioural data

1

 Cognitive data

1

 Experience and context data

11

 Experience and behavioural data

6

 Experience, context and behavioural data

0

 Behavioural and context data

2

 Experience, context, behavioural and cognitive data

0

Design of the questionnaire

 Derived from validated scale/scales

6

 Uses non validated scales

19

 Combination of both

8

Other data collected

 Yes

9

 No

29

Total length of time per day sampling took place (hours)

 Mean

12.3

 SD

1.3

Questionnaire availability (minutes)

 Mean

16.4

 SD

13.2

Data collection frequency (Number of prompts per day)

 Mean

6.8

 SD

2.7

Study duration (days)

 Mean

9.3

 SD

7.8

Terminology used

 Experience Sampling Methods or ESM

23

 Ecological Momentary Assessment or EMA

12

 Ambulatory assessment

0

 EMAc

1

 Mobile phone based assessment

1

 Self assessment

0

 Computerised ambulatory monitoring

1

Data access

 Researchers

37

 Participants

0

 Researchers, Participants and clinicians

1

Accepted response rate (%)

 Mean

27.8

 SD

9.0

Contact with research team during data collection

 Researcher initiated

16

 Participant initiated

1

 Both

5

Participant training

 Yes

33

 No

0

Additional support

 Initial contact after commencing data collection

5

 Initial contact after commencing data collection + technical support on request

5

 Initial contact after commencing data collection + additional support on request

1

 Technical support on request

3

 Technical support on request + motivational support + emotional support

1

 Motivational support + technical support

1

 Initial contact after commencing data collection + motivational support

2

 Motivational support

4

 Initial contact after commencing data collection + technical support + motivational support

1

Participant reimbursement (£)

 Mean

60.7

 SD

38.7

Data completeness %

 Mean

76.8

 SD

15.2