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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Questions: 357 minutes

08:30

October 2, 2025

October 2, 2025
Material has been updated

October 2, 2025
Material has been published

20,701 view

2,283 completions

1,787 likes

Verified by Daniel Hall

Psychologist with 25 years of experience

Scale Explorer

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

1 – 2.3: Low coercion | 2.4 – 3.6: Moderate coercion | 3.7 – 5: High 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

1 – 2.4: Low similarity | 2.5 – 3.6: Moderate similarity | 3.7 – 5: High 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

1 – 2.3: Low boundary respect | 2.4 – 3.6: Moderate boundary respect | 3.7 – 5: High 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

1 – 2.4: Low empathy | 2.5 – 3.6: Moderate empathy | 3.7 – 5: High 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.

Benchmarking

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

2.9 — 4.1

min.

max.

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

2.9 — 4.2

min.

max.

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

3.3 — 4.4

min.

max.

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

3.2 — 4.3

min.

max.

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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SAMPLE QUESTIONS

Example Questions From the Test

- Not at all true
- Probably untrue
- Probably true
- True
- Completely true
- Not at all true
- Probably not true
- Probably true
- True
- Completely true
- Not at all true
- Probably not true
- Probably true
- True
- Completely true

These are 3 of the 35 real questions — the rest appear in the test. No sign-up needed to start.

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WHAT THE TEST MEASURES

About This Assessment

Sibling Questionnaire (BSQ) Test - Symptoms and Signs

family

siblings

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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