Interviews ran for between 15 and 30 min and were
audiotaped. Interviews followed a semistructured format;
that is, different formulations of the same basic questions
were asked of all interviewees, and points of interest were
followed up on an individual basis. The same researcher
conducted all interviews. She reflected on each interview at
its completion and used the data to assist with the formulation
of improved questions as she went along. Interviews
usually started with a question about participants’ general
impressions of the play materials. Further questions related
to teachers’ perceptions of changes in levels of children’s
activity, social and creative play, and safety. In conclusion,
teachers were asked whether they had ideas for improving
the selection of materials on offer to children.