Psychology 255 midterm notes 2

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Psychology 255 midterm notes 2
2013-05-09 16:42:25
Psychology 255 midterm notes

Psychology 255 midterm notes 2
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  1. Validity
    the relative accuracy or correctness of the statement
  2. Internal validity
    the extent to which a set of research findings provides compelling information about causality
  3. external validity
    the extent to which a set of research findings provides an accurate description of what typically happens in the real world
  4. Construct validity
    the extent to which the independant and dependant variables in a study truely represents the abstract, hypothetical variables of interest to the researcher
  5. conceptual validity
    how well a specific research hypothesis maps onto the border theory that it was designed to test
  6. Reliability
    the consistancy or repeatability of a measure of observation
  7. Test-retest reliability
    measuring a group of individuals at one time and then having them come back a second time to take the test again
  8. internal consistancy
    the approach to assessing validity
  9. inter-rater reliability
    the degree to which different judges independantly agree upon an observation or judgement
  10. the "more is better rule" of reliability
    reliability increases with measurements based on a large number of items, events, or observations
  11. covariation
    for one variable to cause another, changes in one variable must correspond with changes in the other
  12. Measurement scales: nominal scales
    meaningful but potentially arbitrary and nonnumerical names or catagories (catagorical)
  13. Measurement scales: ordinal scales
    involve order or ranking
  14. Measurement scales: interval scales
    measurement scales that make use of real numbers designated amounts to reflect relative differances in magnatude (no absolute zero)
  15. Measurement scales: ratio scales
    always have a true zero point
  16. Judgement phase
    are participants thinking about the same question that the researcher was thinking about?
  17. Response translation phase
    can participants translate their internal state to some kind of value on a stage
  18. Anchors
    objectives that lend meaning to the numbers on a scale
  19. Bipolar scales
    ask respondents to rate a quantity that deviates in both directions from a zero point
  20. EGWA scale
    an empirically grounded, well-anchored response scale; a sample and direct route that is based on a exhausive body of careful research