 ውስጥ-ርዕሰ ዲዛይኖች ውስጥ, በሌላ በኩል, ተሳታፊዎች ጠባይ በፊት እና ህክምና በኋላ ሲነጻጸር ነው (Greenwald 1976; Charness, Gneezy, and Kuhn 2012).
M'zinthu zomwe zili mkati mwake, khalidwe la ophunzira likufanizidwa kale ndi pambuyo pa chithandizo (Greenwald 1976; Charness, Gneezy, and Kuhn 2012).