ohn, a psychologist, wanted to determine which of two sorting techniques leads to better memory performance in pre-teens. Each participant first sorts a set of pictures any way he or she likes. Recall is then tested. After this, each participant is required to sort an equivalent set of pictures into five predetermined categories. Recall for the items is then tested. What procedure does this study represent

repeated measures design

Explanation:

A research design can be defined as the blueprint, framework (methods and procedures) or total strategy that are used in the collection and analysis of variables and  in turn effectively addressing  the research problem.

A repeated measures design is a type of research design. it involves the use of different measures of  a variable on a subject that is also the same. it is very essential has it has the tendency to control factors that can cause/influence variability among the subject understudy. it is also called within subject design.

i got 3,4 and 5 as an answer