Sep 22 - Biological Foundations

Sep 22 - Biological Foundations - Biological Foundations...

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Biological Foundations More Research Design The Neuron Action Potential Next Time: The Synapse Scan: p.73 – 78 What are some sources of bias in an experiment? What is the basic structure of a neuron? How do neurons “work”? DR. JUNG ARGUES THAT INCREASES IN TEMPERATURE CAUSE INCREASES IN AGGRESSION. TO SUPPORT HIS CLAIM, HE RECORDED THE TEMPERATURE EACH DAY AND NOTED THE NUMBER OF REPORTED ASSAULTS. MORE ASSAULTS WERE REPORTED ON HOTTER DAYS. HIS CLAIM IS INACCURATE BECAUSE a. the data are based on self-report b. the data are correlational c. this is a case study d. the variables are controlled e. assaults are negatively related to aggression Threats to Validity Internal Validity o Degree to which experiment supports causal conclusion Confound cannot be removed – invalid study External Validity o Degree to which results can be generalized o E.g., does sample represent the general population Increase sample size Demand Characteristics o Cues in experiment convey hypothesis to participants o They “help” experimenter o Effect o Examine aggression – people motivated to be aggressive might be more aggressive in presence of weapon
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o Prediction: weapon in corner of room would cause sample to be more
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This note was uploaded on 01/19/2012 for the course PSYCH 1000 taught by Professor Atkinson during the Fall '09 term at UWO.

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Sep 22 - Biological Foundations - Biological Foundations...

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