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PSY 0035 (12)
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Lecture

Notes on Control

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Department
Psychology
Course
PSY 0035
Professor
All Professors
Semester
Winter

Description
10/8 Control What means are available to neutralize threats to validity? Controlling to Reduce Variability • Increase powerreduce the possibility of a false negative • Quiet lab without distraction o Reaction time study • Very good instrumentation o Ability to measure milliseconds • Select a specific population • Look at different groups separately Example: Medicine’s Search for Meaning • “Doctors report burnout” o Must compare to other groups to have meaning • Control: standard of comparison o Ex. compare level of burnout to others who have same salary, are same age to detect effect • We can give many reasons for why they feel burnt out • Without comparison, we don’t know if the finding is meaningful or why Groups • Experimental: receives treatment • Control: receives no treatment Two Groups, No Control • Only explains how one group compares to another 10/8 • Example: Group 1 Group 2 Trained
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