Dr. mccall found that class projects were of poorer quality when students worked in groups compared to when each student did an individual project. this difference can be explained by the phenomenon of

The correct answer is social loafing. Social loafing is being defined as a phenomenon by which a person exerts less effort in terms of achieving a certain goal especially when they are involved in a group compared to when they are only doing it alone.

fertile good for trade etc

chronological thinking is an indispensable tool to structure a historical narrative and to give meaning to a sequence of events. the final section presents the results of a survey to test the chronological thinking of lower secondary school students carried out by the educational research institute.