*3.1.2 Scientific literacy test (SLT)*

A mixed-type knowledge test was applied, consisting of six problem-based tasks related to popular science topics, totaling 23 items with as many points. The problems were selected from the PISA 2006 science survey [38]. While some of the items were multiple-choice, others were open ended and had to be evaluated manually. SLT items were also assigned one of the three cognitive categories previously described (B1 remembering, B2—understanding, B3—applying).
