The children did not prefer the shape match and avoid the closed box for the shape match non-solid trials as frequently as they did for shape match solid trials.
the fact that they chose the shape-match for the shape match solid trials significantly more often than the shape match non-solid trials showed that they were treating solids and non-solids differently when determining what could reasonably be picked out by the count classifiers (52% vs. 27%, p<.05).