PSY 240 Chapter Notes - Chapter 8: Plague Cross, Ex Post Facto Law, Wave Power
Document Summary
Quasi-experimental designs: subject variables particular individual characteristics are used as the bases of selecting research participants, natural treatment when exposure to events, situations, or settings that emanate from the. Real world defines how participants are selected: quasi-independent variable naturally occurring treatments and subject characteristics. Before-and-after designs: before-and-after designs absence of a comparison group; basis for comparison is provided by comparing the pretreatment with the posttest measures. Interrupted-time-series design used to examine observations before and after a naturally occurring treatment (looking at accident rates and the impact of new laws) A quasi-experiment of memories of 9/11: use of word cues in experimental stimuli. Yellow = important concepts blue = important events/works. Developmental studies: scientific study of progressive psychological changes that unfold across the entire life span as human beings age. Nonexperimental research: researcher has even less control over the independent variable, seldom can specific levels of the independent variable be precisely established or quantified.
