osttest-control group design</a></li>
<li class="chapter" data-level="6.6" data-path="ch-design.html"><a href="ch-design.html#sec:solomon-four-groups-design"><i class="fa fa-check"></i><b>6.6</b> The Solomon-four-groups design</a></li>
<li class="chapter" data-level="6.7" data-path="ch-design.html"><a href="ch-design.html#the-posttest-only-control-group-design"><i class="fa fa-check"></i><b>6.7</b> The posttest-only control group design</a></li>
<li class="chapter" data-level="6.8" data-path="ch-design.html