Qualitative research method was applied and unstructured, in-depth interviews taken with three principals who are in charge of schools that are considered effective, but follow different policies in their work.
Eigindlegri rannsóknaraðferð var beitt og tekin óstöðluð og opin viðtöl við þrjá leikskólastjóra sem stýra skólum sem taldir eru skilvirkir, en fylgja ólíkum stefnum í starfi sínu.