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Sexual Desire Inventory

Understand and assess sexual desire using the Sexual Desire Inventory (SDI-2), a reliable tool for measuring dyadic and solitary sexual desires.

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By Nate Lacson on Aug 2, 2025.

Fact Checked by Gale Alagos.

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Sexual Desire Inventory Template

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Commonly asked questions

The Sexual Desire Inventory (SDI-2) is a self-report tool for measuring quantified sexual desire in two dimensions: dyadic (desire involving a partner) and solitary (desire involving oneself).

Normal sexual desires vary widely among individuals and can be influenced by factors like age, relationship status, and personal values. For most adults, normal sexual desires can range from frequent thoughts and activities to infrequent ones, depending on their unique circumstances and personal comfort levels. It’s important to remember that there is no universal "normal," and sexual desire is highly individual.

The two dimensions of sexual desire are dyadic, which involves sexual desire towards a partner, and solitary, which involves sexual desire focused on oneself.

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