Fig 4.

Screen shot of the home page of the Theory and Technique Tool. Behavior change techniques are listed on the left column; mechanisms of action are listed on the top row and hovering on the abbreviated title gives the full title and definition. Cells are color coded: green indicates a link, blue a nonlink, yellow inconclusive, and white lack of evidence. Clicking on any cell gives full information of the results of each study for that cell. Supplementary File 3 illustrates the cell data for a link and nonlink. It also illustrates the portal for finding resources or engaging in collaboration related to a given cell.