PSYC 3301 Lecture 2: experimental notes 1.18.17

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25 Jan 2017
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Usually take place over a long period of time. Focus" on one or very few people. People who are unique in some way are usually used in case studies: survey method. Opened ended: can write in response. Closed ended: researcher provides you with answers you must choose, ex: multiple choice. Partially ended if no multiple choice answer fits you, you can make your own answer. Strongly disagree, disagree, don"t know, agree, strongly agree . Put in two similar questions and compare the answers. Threats to internal validity: confounding variables. One group does jumping jacks and the other doesn"t. Take the heart rate of the group that isn"t doing jumping jacks, and when youre about to take the other groups heart rate, a fire alarm goes off. Both groups info does not include the fire alarm. External validity: the degree to which your results will apply outside of the experimental context, non-experimental designs have high external validity (design, correlational, quasi)

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