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April 1, 2024

Is My Sister a Narcissist Quiz

Kristie Plantinga
April 1, 2024
5 min to read
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Having a close relationship with a sibling can be one of life's greatest joys, but it can also be a source of deep pain and frustration when that bond is strained or toxic. 

If you find yourself constantly walking on eggshells around your sister, feeling belittled, or doubting your own reality, you may be dealing with the effects of narcissistic behavior. 

It's a heartbreaking realization, but one that many people can face in their relationships with family members.

This quiz is designed to help you gain clarity on the dynamics at play and determine if your sister's behavior patterns align with narcissistic traits. Remember, the goal is not to label or judge, but to understand and potentially find a path towards healing and healthier boundaries.

Disclaimer: While this quiz can help you identify some signs of narcissistic tendencies, it is important to remember that Narcissistic Personality Disorder (NPD) is typically diagnosed in adults. This is because children and teens are naturally more self-centered and their behavior can sometimes mimic narcissistic traits. As they mature, they typically develop empathy and social skills that differentiate them from adults with NPD.

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Example narcissistic scenarios

Narcissistic Personality Disorder (NPD) is a mental health condition where someone has an inflated sense of self-importance, a deep need for admiration, and a lack of empathy for others.

Here are some common signs of NPD that can show up in sibling relationships:

Scenario 1 → Competitive jealousy

  • Extreme competitiveness: Your sister constantly tries to outdo you, even in areas that don't matter. She might belittle your accomplishments or try to steal the spotlight in social situations.
  • The situation: You get a promotion at work and excitedly share the news with your sister.
  • The narcissistic twist: Instead of being happy for you, she might downplay your achievement or try to one-up you by talking about a (potentially exaggerated) success of her own. This leaves you feeling confused and undermines your moment of joy.

Scenario 2 → Dismissive of your feelings

  • Lack of empathy: Your sister shows little to no concern for your feelings and struggles. She may even take pleasure in your misfortune.
  • The situation: You're going through a tough breakup and confide in your sister for support.
  • The narcissistic twist: She might minimize your pain, make it about herself somehow, or even blame you for the relationship ending. This leaves you feeling emotionally isolated and unsupported.

Scenario 3 → Guilt trip for attention

  • Manipulation and guilt tripping: Your sister uses emotional manipulation to get what she wants from you. She may guilt you into doing things for her or play the victim to gain sympathy.
  • The situation: You have plans with friends, but your sister suddenly cancels plans she made with someone else and insists you spend time with her instead.
  • The narcissistic twist: She might guilt-trip you by accusing you of not being a good sibling or neglecting her if you don't drop your plans.

Remember: These are just a few examples, and not every person with NPD will exhibit all of these behaviors. However, if you recognize several of these traits in your sister, it might be worth exploring the possibility of NPD further.

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Written by
Kristie Plantinga

Kristie Plantinga is the founder of Best Therapists. Along with being on the client-side of therapy, Kristie has had the honor of working directly with therapists in her marketing agency for therapists, TherapieSEO. While working alongside therapists, she learned about the inequities in our mental health system that therapists face on a daily basis, and she wanted to do something about it. That’s why Best Therapists is a platform designed to benefit not only therapy-seekers, but therapy providers. Kristie has a Masters degree in Written Communication and a Bachelors degree in Psychology and Music.

Reviewed by
Katelyn McMahon
Registered Psychotherapist, VT #097.0134200

Katelyn is a therapist-turned-writer with a passion for mental health. She has a Master's degree in Social Work from the University of England and is a Registered Psychotherapist in the state of Vermont. Katelyn has professional experience in aging care, addiction treatment, integrated health care, and private practice settings. She also has lived experience being on the client side of therapy. Currently, Katelyn is a content writer who’s passionate about spreading mental health awareness and helping other therapists and therapy-seekers Do The Work.

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