Dr. alvarez is conducting research on adult intelligence. she tests participants of various ages (20, 30, 40, 50, 60 and 70 years of age) at one point in time. this is which type of research design
Testing for intelligence at multiple ages at one point in time is cross-sectional research. The goal of this type of research is to provide data on the whole population under study. This type of study is less costly than other forms of study.
