Within the TCHAD sample the affection subscale of the Relationship Quality Survey (58, 59) was used to assess pair-bonding behavior. This subscale was selected due to its similar to the partner-bonding behavior scale used in TOSS. The affection subscale asks participants to describe the quality of interactions with their romantic partners. Specifically, this subscale includes items such as “How affectionate are you with this person?” and “How important is it that this person likes you?” reflecting individual characteristics related to pair-bonding behavior.
