arrows, boxes, underlining, and other ways to highlight key points; conjure mnemonic rhymes, word associations, andvisual mental images; look up unfamilar terminology; make sketches and drawings; create charts; memorize formulas; solve practice problems; and so ...
Finally, the direction (uni or bidirectional), intensity (direct/indirect or constant/sporadic) of their relationship were shown using arrows. The criteria employed for defining a relationship were the existence of either financial (e.g., payments for inputs or services), information (e.g., ...