A meta-analysis of 181 studies examined the relationship between maternal and paternal sensitivity and child attachment security. The results showed a significant positive association between caregiver sensitivity and child attachment security, with maternal sensitivity showing a slightly stronger effect than paternal sensitivity. Maternal sensitivity was also negatively associated with all three classifications of insecure attachment (avoidant, resistant, and disorganized). The study found that the magnitude of the association varied based on factors such as the type of sensitivity measure used, the reliability of the measurement, the age of the child and parent, and the socio-demographic characteristics of the sample. The study also found that the association between caregiver sensitivity and child attachment was stronger when the sensitivity measure was conducted after the infant's first birthday and when the sample had moderate socioeconomic status. The study highlights the importance of both maternal and paternal sensitivity in the development of secure child attachment and identifies key methodological and substantive factors that influence the observed effect. The findings suggest that interventions targeting caregiver sensitivity could be effective in promoting healthier child-parent relationships. The study also emphasizes the need for further research to explore the differential associations between caregiver sensitivity and different types of insecure attachment.A meta-analysis of 181 studies examined the relationship between maternal and paternal sensitivity and child attachment security. The results showed a significant positive association between caregiver sensitivity and child attachment security, with maternal sensitivity showing a slightly stronger effect than paternal sensitivity. Maternal sensitivity was also negatively associated with all three classifications of insecure attachment (avoidant, resistant, and disorganized). The study found that the magnitude of the association varied based on factors such as the type of sensitivity measure used, the reliability of the measurement, the age of the child and parent, and the socio-demographic characteristics of the sample. The study also found that the association between caregiver sensitivity and child attachment was stronger when the sensitivity measure was conducted after the infant's first birthday and when the sample had moderate socioeconomic status. The study highlights the importance of both maternal and paternal sensitivity in the development of secure child attachment and identifies key methodological and substantive factors that influence the observed effect. The findings suggest that interventions targeting caregiver sensitivity could be effective in promoting healthier child-parent relationships. The study also emphasizes the need for further research to explore the differential associations between caregiver sensitivity and different types of insecure attachment.