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Table 1 Overview of the published psychometric properties for each of the included scales

From: ACHESS – The Australian study of child health in same-sex families: background research, design and methodology

Questionnaire or scale

Validity

Reliability

 

Content

Criterion

Construct

Internal consistency (Cronbach’s alpha)

Repeatability

   

Convergent

Discriminant

Factor analysis

 

Test- retest

Inter-rater

       

(ICC)

(Correlation)

CHQ

        

Parent report

+

+*

+*

+*

+*

0.60-0.93*

0.49-0.78* (at 2 weeks)

 
       

0.47-0.82* (at 6 weeks)a

 
        

0.42-0.64*

Adolescent report

+

+*

+*

+*

+*

0.79-0.90*

  

ITQOL

+

+

-

+

-

0.73-0.92

0.42-0.82

-

SDQ

        

Parent report

+

+*

-

+

+*

0.67-0.80*

0.61-0.77* (at 1 year)

 
      

0.59-0.82*

0.52-0.85* (at 2 weeks)

 
        

0.32-0.46*

      

0.59-0.75* (11+)

0.66-0.82* (at 2 weeks)

 

Child report

+

-

-

-

-

0.55-0.73* (<11)

  

BSS

        

Adult report

+

-

-

-

-

0.74

-

-

Child report

+

-

-

-

-

0.79

-

-

K10

+

+*

-

-

+*

0.92*

0.8123*

N/A

  1. + Psychometric property tested/identified.
  2. - Psychometric property not tested/not identified.
  3. N/A Psychometric property not applicable.
  4. * Australian data.
  5. a Excludes physical functioning (0.05) and role-social physical (0.08).