app/views/grades/_reviews_tab.html.erb
<% unless tscore.nil? %>
<% participant = tscore[:team].participants.first %>
<% pscore = @scores[:participants][participant.id.to_s.to_sym] if participant %>
<% if pscore %>
<%= view_heatgrid(participant.id, "ReviewQuestionnaire") %>
<% end %>
<% end %>