In health psychology, there exists a lack of conceptual clarity regarding a number of terms that are at the core of psychological science. True, this problem exists in psychology in general, but the terms Behavior Change Technique (from the BCT taxonomy approach) and Method for Behavior Change (from the Intervention Mapping approach) have exacerbated matters within behavior change science. In this post, I will discuss this in more detail, based on a recent Twitter discussion that erupted around whether a psychological variable targeted by a behavior change technique is a mediator or not:
Where by 'mediators', you mean 'determinants' I guess? I don't think 'mediator' is the right term – there is no predictor variable. A manipulation is an operationalisation of a construct – if the manipulation is valid, the construct changes, *that* is the variable, the predictor.
— Gjalt-Jorn Peters (@matherion) June 7, 2018
In this post, I will explain more in detail what I mean (you may want to read the Twitter thread first though).