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Table 2 Measures used at baseline and one year follow-up to assess student outcomes

From: teen Mental Health First Aid: 12-month outcomes from a cluster crossover randomized controlled trial evaluation of a universal program to help adolescents better support peers with a mental health problem

Outcome Survey measure Response Example Scores range and reliability statistics
Measures of Mental Health First Aid
 Quality of first aid intentions If John/Jeanie was a friend I would… Choose any of 13 possibilities:
6 consistent with Action Plan
6 discordant with Action Plan
Other (please specify)
Helpful—Tell John I have noticed something seems wrong, and I want to make sure he is okay
Harmful/unhelpful—Ignore Jeanie because she is attention-seeking
Helpful intentions subscale, total score on
6 items: 0 to 6
John ω = .84
Jeanie ω = .85
Unhelpful intentions subscale, total score on 6 items 0 to 6
John ω = .76
Jeanie ω = .78
 Confidence If John/Jeanie was a friend, how confident would you feel in helping him/her 5-point Likert scale
1 = Not at all
5 = Extremely
  Test–retest for PFA students (apx 4 weeks apart)
John r = .52
Jeanie r = .48
 Quality of first aid behaviours (among those reporting contact with a peer with a mental health problem/crisis) In the last 12 months have you had contact with anyone about your age (i.e. between
13–18 years old) who you thought might have a mental health problem or has experienced a mental health crisis?
Yes, No, Not sure,
I do not want to answer
If yes/not sure – Please tell us how many people about your age you had contact with who you
thought might have a mental health problem or experienced a mental health crisis; did you offer any help?; What did you do to help the person?
Choose any of 12 possibilities:
6 consistent with Action Plan
6 discordant with Action Plan
Other (please specify)
Helpful – Invited them to hang out and do something fun with me
Unhelpful – Avoided talking about suicide because it might put the idea in their head
Helpful behaviours subscale, total score on
6 items: 0 to 6
ω = .73
Unhelpful behaviours subscale, total score on 6 items 0 to 6
ω = .64
 Quality of first aid received from a peer (among those self-reporting a mental health problem/crisis) In the last 12 m has anyone tried to support or assist you with this mental health problem or crisis? Yes, No, Not sure
If yes/not sure—Who provided support or assistance for the problem? [friend, parent, other family member, health professional, teacher, other]
If friend – What did your friend do to help you?
Choose any of 10 possibilities:
6 consistent with Action Plan
4 discordant with Action Plan
Other (please specify)
Helpful – Told me they noticed something seems wrong and wanted to make sure I was ok
Harmful/Unhelpful – Told me what to do to fix my problems
Helpful behaviours received subscale, total score on
6 items: 0 to 6
ω = .71
Unhelpful behaviours received subscale, total score on 4 items 0 to 4
ω = .67
Measures of Mental Health Literacy
 Beliefs about helpfulness of adult help Which of the following people do you think would be helpful, harmful, or neither for John/Jeanie’s problem? Helpful, Neither, Harmful Counsellor
General Practitioner (GP) or family doctor
Parent
Teacher
School Counsellor/Welfare coordinator
Minister or Priest
Total number of adults endorsed as helpful: 0 to 6
Test–retest for PFA students (apx 4 weeks apart)
John r = .55
Jeanie r = .58
 Help seeking intentions If I had a problem right now like John’s/Jeanie’s I would…   Talk to a friend about it
Improve my diet
Total score on 5 items: 0 to 5
John ω = .76
Jeanie ω = .72
Measures of Stigma
 Social Distance Would you be happy to: 4-point Likert scale
1 = Yes definitely
4 = Definitely not
Develop a close friendship with John/Jeanie
Go out with John/Jeanie on the weekend
Total score on 5 items: 5 to 20
John ω = .91
Jeanie ω = .94
 Weak-not-sick Please indicate how strongly you personally agree or disagree with each statement 5-point Likert scale
1 = Strongly disagree
5 = Strongly agree
A problem like John/Jeanie’s is a sign of personal weakness
John/Jeanie’s problem is a real medical illness
People with a problem like John/Jeanie’s could snap out of it if they wanted
It is best to avoid people with a problem like John/Jeanie’s so you don’t develop this problem
Mean score of 4 items
John ω = .77
Jeanie ω = .78
 Dangerous/Unpredictable Please indicate how strongly you personally agree or disagree with each statement 5-point Likert scale
1 = Strongly disagree
5 = Strongly agree
People with a problem like John’s/Jeanie’s are dangerous
People with a problem like John/Jeanie’s are unpredictable
It is best to avoid people with a problem like John/Jeanie’s so you don’t develop this problem
Mean score of 3 items
John ω = .59
Jeanie ω = .77
 Would not tell anyone Please indicate how strongly you personally agree or disagree with each statement 5-point Likert scale
1 = Strongly disagree
5 = Strongly agree
If I had a problem like John’s/Jeanie’s I would not tell anyone Test–retest for PFA students
John r = .54
Jeanie r = .50
  1. ω = Revelle’s omega total for total scores and subscales. Omega is considered acceptable when above 0.70
  2. r = was calculated based on the control condition measures taken at baseline and post-training which occurred approximately 4 weeks apart. Given that an intervention was provided in between the measurement occasions, this may have led to lower reliability estimates than would be reported by a training-naive sample. Other test–retest reliability data on these instruments has not been previously developed, as this was the first implementation of the John and Jeanie vignettes in a tMHFA-naive sample