Sibling Questionnaire (BSQ) Test

Understand sibling communication, comfort, and conflict patterns in about 7 minutes. 35 quick items flag frequent fights and aggression, guiding targeted family support.
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Questions357 minutes
Hi! My name is Freudly, i am an AI therapist, I will give you an interpretation of the test after you complete it.
08:30
October 2, 2025
October 2, 2025
Material has been updated
17,518 views
1,950 completions
1,529 likes
Verified by Daniel Hall
Psychologist with 25 years of experience
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How the Scales are Structured

example score
3/5
Coercion (C)
Measures the degree of dominance, control, and exploitation one sibling uses over another in the relationship.
Low coercion
Moderate coercion
High coercion
12.3Low coercion2.43.6Moderate coercion3.75High coercion
A score of 3 indicates a moderate level of coercion, suggesting some control or dominance behaviors are present but not strongly pervasive.
example score
4/5
Similarity (S)
Measures how much siblings share interests, experiences, and feelings versus how distinct they perceive themselves to be.
Low similarity
Moderate similarity
High similarity
12.4Low similarity2.53.6Moderate similarity3.75High similarity
A score of 4 indicates high perceived similarity, suggesting notable shared interests or experiences and a sense of common ground between siblings.
example score
2/5
Boundary Maintenance (BM)
Assesses how well siblings respect each other’s physical and psychological boundaries, including possessions and personal interests.
Low boundary respect
Moderate boundary respect
High boundary respect
12.3Low boundary respect2.43.6Moderate boundary respect3.75High boundary respect
A score of 2 indicates low boundary respect, suggesting boundaries around space, belongings, or personal interests are often not maintained between siblings.
example score
3/5
Empathy (E)
Measures the degree of caring, emotional understanding, and connection between siblings.
Low empathy
Moderate empathy
High empathy
12.4Low empathy2.53.6Moderate empathy3.75High empathy
A score of 3 indicates a moderate level of empathy, suggesting some caring and emotional attunement alongside areas where understanding and shared support may be inconsistent.
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DATA-BASED USER COHORTS

Who Usually Takes This Test?

Parents of quarreling kids
44%OF USERS
Parents take it to understand how often siblings fight, what triggers aggression, and what might help restore calmer relationships at home.
Family therapists and counselors
31%OF USERS
Clinicians use it as a quick screening tool to gauge sibling conflict patterns and guide family sessions or intervention plans.
Researchers and school psychologists
25%OF USERS
Professionals in education or research administer it to track sibling relationship quality and evaluate outcomes of programs or studies.
BASED ON AGGREGATED, ANONYMIZED DATA FROM TENS OF THOUSANDS OF FREUDLY USERS.
RESULTS YOU CAN ACTUALLY USE

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Used in 52+ countries
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See How You Compare

Once you complete the test, your results are compared with real-world data from people in your country.
Below is a preview of how scores are typically distributed across each scale.
Coercion (C)
Average
3.5
Normal range
2.94.1
min.
1
max.
5
Majority
This curve shows how scores are typically distributed.
Once you complete the test, your result will appear on the scale so you can see how you compare.
Similarity (S)
Average
3.6
Normal range
2.94.2
min.
1
max.
5
Majority
This curve shows how scores are typically distributed.
Once you complete the test, your result will appear on the scale so you can see how you compare.
Setting Boundaries (SB)
Average
3.8
Normal range
3.34.4
min.
1
max.
5
Majority
This curve shows how scores are typically distributed.
Once you complete the test, your result will appear on the scale so you can see how you compare.
Empathy (E)
Average
3.8
Normal range
3.24.3
min.
1
max.
5
Majority
This curve shows how scores are typically distributed.
Once you complete the test, your result will appear on the scale so you can see how you compare.
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CLEAR ANSWERS TO COMMON QUESTIONS

Frequently Asked Questions

What does this questionnaire measure?
It assesses the frequency and intensity of conflict, quarrels, and aggressive reactions between siblings. It helps distinguish supportive interactions from patterns marked by hostility.
Who is the questionnaire intended for?
It is intended for use in clinical, counseling, and research settings where sibling relationships are being assessed. It is most useful when there are concerns about persistent tension or aggression.
How long does it take to complete, and how many items are included?
Completion typically takes about 7 minutes. The questionnaire contains 35 items.
How should items be answered?
Each item should be answered based on typical behavior and interactions, not a single unusual incident. All items should be completed to support accurate scoring.
How are results used?
Scores summarize the level of sibling conflict and aggressive interaction patterns. Results can guide case formulation and inform intervention planning or program evaluation.
WHAT THE TEST MEASURES
About This Assessment
Sibling Questionnaire, BSQ Test

Sibling Questionnaire (BSQ) Test - Symptoms and Signs

This questionnaire is used to characterize sibling relationship functioning in the family context. The Sibling Questionnaire (BSQ) provides a brief, structured approach to describing patterns of day-to-day interaction and perceived relationship quality.

The measure consists of 35 items and typically takes about 7 minutes to complete. Item content is oriented toward behaviors and experiences that can help differentiate more supportive, reciprocal relationships from those marked by frequent conflict or aggression. Results from the Sibling Questionnaire (BSQ) are commonly interpreted as part of a broader clinical or research assessment of family dynamics and may help guide case formulation and treatment planning when sibling interactions are a clinical concern.

Author: j-dunn
Literature: Dunn, J. Sibling relationships in early childhood. Child Development. 1983.; Graham-Bermann, S. A., & Cutler, S. E. The Brother-Sister Questionnaire: Psychometric assessment and discrimination of well-functioning from dysfunctional relationships. Journal of Family Psychology. 1994.
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