Our proposed ALSPAC study consists of two analytical phases.

Phase One will measure the prevalence of IPVA and identify the characteristics of intimate partner violence and abuse for different age groups (age 13, 13-18, 18-21) and in relation to sociodemographic and socioeconomic factors in the ALSPAC cohort. We aim to examine the overlap between experience/perpetration of potential IPVA behaviours for under-18s and over-18s. In addition, we shall examine the possible associations between physical violence experienced or perpetrated at age 13 (existing questions) and IPVA behaviours experienced and perpetrated under the age of 18 and between 18-21 (new questions).

The aim of Phase Two is to contribute to a more comprehensive understanding of the mechanisms underlying the transmission of risks and protective factors associated with the exposure to domestic abuse in childhood and IPVA in later life. A longitudinal study with a nested qualitative study will inform a more nuanced understanding of the complexity of the effects of direct and indirect experiences of IPVA, and their possible associations with adolescent and young adult outcomes. This Phase is not developed further in the current proposal.