I'm currently writing a paper and one of the points is about how overprotective parenting can cause anxiety in children.
The results seem pretty clear cut in favour of the assertion (1). https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5007197/
However, there are individual studies (far fewer than those suggesting a link) that argue the relationship between overprotective parenting and child anxiety isn't really there (2).
The relationship between overprotective parenting and child anxiety has been examined repeatedly because theories emphasize its role in the maintenance of child anxiety. No study has yet tested whether this relationship is unique to child anxiety, by controlling for commonly co-occurring behavior problems within the same children. The current study examined 190 children (age 7-13, 118 [corrected] boys) referred to mental health clinics and their parents. Results revealed that significant correlations between overprotective parenting and child anxiety symptoms disappear after controlling for co-occurring child behavior symptoms. It appears that overprotection is not uniquely related to child anxiety. Furthermore, overprotective parenting was significantly and uniquely related to child behavior symptoms. Researchers and practitioners need to consider co-occurring child behavior problems when working with the parents of anxious children. https://pubmed.ncbi.nlm.nih.gov/22659077/
Given all these studies are valid, how would a scientist deal with this? Would the assumption be that there's mixed results and therefore its inconclusive? Or would the assumption be that because the majority is pro, we can view the link as existing?