Psychological+Resesarchoutline 9-14-2010

Psychological+Resesarchoutline 9-14-2010 - Psychological...

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Psychological Research
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What do you believe? Theory: A systematic way of organizing and understanding observations Hypothesis: A proposed relationship between two variable Example: under times of stress, most likely to get sick
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Variable: anything which can be measured or described along a particular dimension Ex. Anxiety, divorce Continuous Variable: a variable which can be measured across a continuum Ex. Hours slept, ounces of coffee, energy drinks Categorical Variable: a variable with a fixed meaning or attribute Ex. Divorce, pregnancy, marital status
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Operationalize Definitions: Label and decribe the variables of interest Research on sexual activity and adolescence: how do you define “sexually active” Ex. What does it mean? Intercourse? hu? Research on marijuana use and academic achievement: how does one define differentiate “use” Research on aggression and preschoolers: what is aggression? Any hostile act a child makes
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Research Methods in Five Easy Steps Develop a theory based on observations Test a hypothesis NOT a theory Develop a hypothesis from the theory Something that can be tested and proven Design a research study Gather the data Analyze the data and report findings
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Measurement Issues in Research Validity: does it measure what it is supposed to measure Ex. Are students that are hungry have a harder time learner than those that are not Come to class and snicker bar waiting for you. BAD experiment bc some people could have come full or snickers not filling enough. (NOT A VALID MEASURE) Reliability: do you get consistent results over time You CAN have a measure that has reliability but NOT validity (shyness is the same over time)
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Data Collection Techniques Direct Observation Kids wear jackets at end of preschool bc want to go home Good preschools will have them do something to distract them Questionnaires Interviews Theory of mind – young children do not have one. They think since they know something everyone does Psychological Tests Get a sense of certain variables Physiological Recordings
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This note was uploaded on 02/02/2011 for the course PSYCH psych 111 taught by Professor Shellyschreier during the Fall '10 term at University of Michigan.

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Psychological+Resesarchoutline 9-14-2010 - Psychological...

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