Friendship Quality Scale

The Friendship Quality Scale is a 23-item questionnaire measuring children’s and young adolescents’ friendship quality. It quantifies their self-reported perceptions of five aspects of their bond with a best friend: companionship, conflict, help/aid, security, and closeness. The scale has 23 items using a 5-point Likert scale from 1 (never) to 5 (always).


Friendship quality
1st Grade,
2nd Grade,
3rd Grade,
4th Grade,
5th Grade,
6th Grade,
7th Grade,
8th Grade,
9th Grade,
10th Grade,
11th Grade,
12th Grade

Administration Information

23 items

Access and Use



Use in Research

Bauminger, N., & Kasari, C. (2000). Loneliness and friendship in high‐functioning children with autism. Child Development, 71(2), 447-456. 

Kiuru, N., Wang, M. T., Salmela-Aro, K., Kannas, L., Ahonen, T., & Hirvonen, R. (2020). Associations between adolescents’ interpersonal relationships, school well-being, and academic achievement during educational transitions. Journal of Youth and Adolescence, 49(5), 1057-1072. 

Nelson, R. M., & DeBacker, T. K. (2008). Achievement motivation in adolescents: The role of peer climate and best friends. The Journal of Experimental Education, 76(2), 170-189. 

Terrion, J. L., Rocchi, M., & O'Rielly, S. (2015). The relationship between friendship quality and antisocial behavior of adolescents in residential substance abuse treatment. Journal of groups in Addiction & Recovery, 10(2), 141-162.


Manual scoring
Psychometric References

Bukowski, W. M., Hoza, B., & Boivin, M. (1994). Measuring friendship quality during pre- and early adolescence: The development and psychometric properties of the Friendship Qualities Scale. Journal of Social and Personal Relationships, 11(3), 471–484.

Item Type

Psychometric Considerations

Psychometrics is the science of psychological assessment. A primary goal of EdInstruments is to provide information on crucial psychometric topics including Validity and Reliability – essential concepts of evaluation, which indicate how well an instrument measures a construct - as well as additional properties that are worthy of consideration when selecting an instrument of measurement.

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