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Table 2 Concordance rate of items and agreement coefficient by helpful/harmful scale

From: Adolescent peer support for mental health problems: evaluation of the validity and reliability of the Mental Health Support Scale for Adolescents

Scale

Item (by label)

Concordance rate (%)

Agreement coefficient

Students

Instructors

Helpful intentions

  

0.87

Harmful intentions

  

0.93

Helpful intentions (John vignette: depression-suicidality)

Invite to hang out

89.8

87.7

0.80

Approach the person

91.3

98.5

Suggest telling a professional

81.3

98.5

Suggest telling an adult

84.0

100.0

Ask about suicide

29.6

95.4

Listen to the person

90.8

95.4

Harmful intentions (John vignette: depression-suicidality)

Tell the person how to fix

13.7

86.2

0.92

Ignore the person

89.5

98.5

Unfriend the person

88.5

98.5

Avoid talking about suicide

15.8

96.9

Encourage to deal alone

69.1

98.5

Do nothing

91.0

98.5

Helpful intentions (Jeanie vignette: social anxiety/phobia)

Invite to hang out

88.5

89.7

0.84

Approach the person

84.8

100.0

Suggest telling a professional

65.1

98.3

Suggest telling an adult

74.6

100.0

Ask about suicide

19.9

69.0

Listen to the person

89.1

96.6

Harmful intentions (Jeanie vignette: social anxiety/phobia)

Tell the person how to fix

23.5

94.8

0.87

Ignore the person

88.9

100.0

Unfriend the person

86.9

100.0

Avoid talking about suicide

28.3

100.0

Encourage to deal alone

64.7

98.3

Do nothing

86.0

100.0

  1. Scales of helpful/harmful intentions used pooled data across vignettes; Items of harmful intentions were reverse scored, so higher concordance rates indicate better quality of intentions.
  2. Agreement coefficients were calculated based on the student sample.