Advantages And Disadvantages Of Adhd

In light of these strengths, there are some limitations that need to be mentioned too.
First, ADHD were based on mother and child self-reports, rather than on diagnosis. However, the SDQ-score are a standardized and reliable screening tool that can be used in epidemiologic studies (ref). Further, the disadvantage of using diagnosis is that since not all children with ADHD receives a hospital diagnosis, this can lead to a loss of children with ADHD symptoms, especially children from lower socio-economic backgrounds (ref). Since ADHD is more present in children from lower socio-economic backgrounds (ref) this can bias the results due to selection bias (ref).
Second, some methodological problems in measuring cohabitation status exist. Cohabitation

status was only obtained during early pregnancy and again six months after pregnancy, which means that it is a contrived variable that do not directly measure whether the parents ended cohabitation during pregnancy or not. One can argue that more validated measures or registers may be necessary to capture the accurate cohabitation status. By registers, it would also be possible to account for the timing perspective. Moreover, it is important to distinguish between when cohabitation status has been measured. It was argued, that end of cohabitation constitutes a stress factor. If so, the temporal dimension to the measurement of cohabitation, may affect the outcome since stress is assumed to be dynamic, and thus will change over time (ref). It is previously shown, that time specific periods impact the outcome different, though these findings are somehow inconsistent (ref).