EPPP RESEARCH AND STATISTICS EXAM QUESTIONS WITH COMPLETE ANSWERS

EPPP RESEARCH AND STATISTICS EXAM QUESTIONS WITH COMPLETE ANSWERS Regression Equation - Answer--Used to predict the value of a Y variable on the basis of a person's score on an X variable -based on the assumption that the relationship between X and Y can be depicted as a straight line -The variability of y scores is equal throughout the range of X scores )(homoscedasticity) -One can predict Y on the basis of scores on X A study designed to identify problem-solving skills among violent offenders asks subjects to "think aloud" while they are performing a difficult task. The researcher records what the subjects say and do and later interprets the cognitive processes they used to solve the problem. This is an example of: a. free association b. naturalistic research c. protocol anaylsis d. retrospective debriefing - Answer-c. protocol analysis Protocol Analysis - Answer--This is not a quantitative or statistical study -It is qualitative or based on the researcher's own interpretations. -"Think Aloud" technique is the only technique that is useful for obtaining information on cognitive processes -Assumes that subjects instructed to verbalize their thoughts in a manner that doesn't alter the sequence of thoughts mediating the completion of a task, can think-aloud without any systematic changes to their thought process and can therefore be accepted as valid data on thinking Retrospective Debriefing - Answer-Subjects, after working on a problem, are asked how they determined the solution Naturalistic Research - Answer--Simply refers to studies which observe behavior in their natural setting, as compared to "analogue research" which draws conclusions about real-world phenomena based on laboratory findings. You are conducting a study to examine the effects of aging on reaction time by comparing differences in the reaction time of older and younger adults. Subjects are asked to view stimuli on a computer screen and to press a level every time they see certain target stimuli. The results indicate that younger adults respond faster than older adults, and you conclude that reaction time is faster for younger adults. Your conclusion is faulty because of a. differential attrition effects