Table 2.

Checklist for quality assessment.

1) The use of standardized executive tasks*.	0 = No standardized tasks; 1 = Use of some non-standardized tasks; 2 = Use of all standardized tasks.
2) Controlling of psychological (e.g. depression, anxiety, emotional dysregulation) and/or physiological variables (e.g. blood values, hormonal and inflammatory aspects).	0 = No control of variables; 1 = Control of psychological or physiological variables; 2 = Control of both psychological and physiological variables.
3) The use of international guidelines for BMI classification.	0 = No international guidelines; 1 = Shared guidelines (i.e. CDC); 2 = International guidelines.
4) Quality of the method description (about executive variables).	0 = Procedures and assessment tools are not well indicated; 1 = Procedures and assessment tools are partially described; 2 = Procedure and assessment tools are well described.
5) Quality of results description (about executive variables).	0 = Executive functioning is not included in the results; 1 = Executive functioning is partially included in the results; 2 = Executive functioning is included in the results.
6) Quality of discussion and conclusion (about executive variables).	0 = Executive functioning is not included in either discussion or conclusion; 1 = Executive functioning is not well included in discussion and conclusion; 2 = Executive functioning is included in both discussion and conclusion.

^*Behavioral tasks widely used in literature for the analysis of a specific executive function.