Consumer groups and
retailers are less likely to engage in processes which appear distant from
their primary interests. Participation of these more peripherally engaged or differently skilled groups may thus be limited by self-selection, rather
than researcher intent. Reflecting on the scope of the engagement, the
researchers considered that additional validation of outcomes might be
attained via future work with a broader group of stakeholders (see also
Alcamo et al. (2006) and discussed holding activities at both public events
(for example agricultural shows) and at schools.