Psych 301.txt

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Anonymous
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82568
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Psych 301.txt
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2011-04-28 21:17:42
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psych cooper
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psych 301
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  1. Naturalistic Observation
    A research technique in which the researcher simply observes and describes behavior
  2. Correlational Approach
    A research technique in which the researcher determines whether variables are related without manipulating the variables
  3. Independent Variable
    A variable under the control of the experimenter that may effect the dependent variable in a reliable fashion.
  4. Dependent Variable
    The variable being examined by the researcher. It may or may not be effected by the IV
  5. Between Subjects Design
    An experimental design in which each subjects is randomly assigned to only one of the treatment conditions
  6. Within Subjects Design
    An experimental design where all subjects receive all treatment conditions. Also called a repeated measures design
  7. Type I Error
    An error of statistical inference when the null hypothesis is rejected when it is true. This is an error of "seeing too much in the data."
  8. Type II Error
    An error of statistical inference when the null hypothesis is retained when it is false. This is an error of "not seeing enough in the data."
  9. Confound
    Variables not under the control of the experimenter that vary systematically with the independent variable
  10. Factorial Design
    A research design with more than one IV in which every IV level is present at all levels of the other IVs
  11. Nuisance Variables
    any variable other than the IV that affects the DV
  12. Floor and Ceiling Effects
    • Floor - The values of the DV are so low they are not affected by the IV
    • Ceiling - The values of the DV are so high they are not affected by the IV
  13. Main Effect
    The effect of the change in level of one factor in a factorial experiment measured independently of other variables.
  14. Response Acquiescence effect
    The tendency of an interviewee to agree with the questioner.
  15. Random & Fixed Factors
    • Random - An IV whose levels were chosen randomly from a population of possible values
    • Fixed - An IV whose levels were chosen non-randomly
  16. Theory
    Hypothesis
    • Theory - A set of propositions which summarise, organise, and explain a variety of known facts
    • Hypothesis - A supposition or proposed explanation made on the basis of limited evidence as a starting point for further investigation.
  17. Modus Ponens

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