“…Other knowledge questionnaires focusing on the diet of young children have been used to assess parental knowledge, but these are limited in scope, lack validity, and feature items that are overly specialised, for example, asking parents to decide if the following statement is correct: "If one should pay attention to the weight of a pre-schooler, it is preferable to substitute potatoes by rice and pasta" [22,23]. Through a semi-structured literature review of caregivers' nutrition knowledge, we identified only four [9,10,12,24] of 15 studies used nutrition/physical activity knowledge questionnaires that showed content and construct validity; four were partially validated (no construct validity) [16,19,20,25], and the remaining seven [13][14][15]17,18,21,26] either did not describe validation methods or did not appear to be validated. These characteristics may have limited the quality of evidence for ECEC teachers' nutrition knowledge.…”