This study investigated the susceptibility of three popular measures of attachment styles to impression management (other-deception) and unconscious defensiveness (self-deception). Specifically, responses to the Attachment Style Questionnaire, Adult Attachment Scale, and the Relationship
Questionnaire were correlated with the Balanced Inventory of Desirable Responding. Results indicate that all three measures are, to varying degrees, contaminated by impression management tendencies, while only the Relationship Questionnaire is free from a self-deceptive bias. These results
have implications for interpreting responses to several frequently used measures of attachment styles, also for the theoretical issue of whether the avoidance attachment style is based on defensiveness.