Psych 301

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Anonymous
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82393
Filename:
Psych 301
Updated:
2011-04-28 00:13:34
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psych
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Description:
Eric Cooper's Psych 301 at ISU
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  1. Naturalistic Observation
    A research technique in which the researcher simply observes and describes behavior
  2. Correlational Approach
    Correlational studies are used to look for relationships between 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
    Experimental designs in which two or more independent variables are used. This permits the analysis of interactions between variables.
  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

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