Research quiz 2

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mdawg
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307363
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Research quiz 2
Updated:
2015-09-04 23:25:54
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Research quiz
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Research quiz 2
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  1. An operationalization should be
    • VALID
    • Construct validity
    • Criterion validity
    • RELIABLE
  2. Two Types of Reliability
    Reliable measure:  stable measure

    Reliable results:  stable finding across different measures or differentoperationalizations
  3. Failure to allow for falsifiability
    Is the major reason that Freud is not too much in favoramong academic psychologists
  4. Type I error
    reject null hypothesis when it is true
  5. Type II error
    Accept the null hypothesis when it is false
  6. Power
    •   Rejecting a false null hypothesis
    •   The probability that we will detect an effect if an effect actually exists
  7. Sensitivity of a study
    The ability to detect an effect even if the effect is small
  8. Ceiling effects
    All your test scores are high
  9. Floor effects
    all your test scores are low
  10. parsimonious
    avoids unnecessary concepts
  11. how do we avoid type II errors?
    Look at array of data
  12. How to test the idea or theory
    • Be concrete (operational)
    • Say - in advance - what would prove you wrong
    • FALSIFIABILITY – hallmark of modern scienceSays Karl Popper
    • The theory is parsimonious
  13. qualitative methods go along with
    idiographic
  14. quantitative methods go along with
    nomothetic
  15. qualitative data
    • words  
    • Some times code into categories  
    • Often count what you code
  16. Quantitative data
    • Numbers
    • they communicatea lot of information with a few symbols
    • NEED TO USE NUMBERS WISELY (donʼtdecontextualize
  17. kind of quantitative data
    • NOMINAL
    • CONTINUOUS
  18. nominal data
    • Categorical
    • •  Examples
    • •  Yes/no
    • •  Male/female
    • •  Car color
    • •  Type of pet
  19. Continuous data
    • ALONG A CONTINUUM
    • •  Shortest to tallest
    • •  Poorest to richest
    • •  Least to mos
  20. how to make continuous data into categorical data
    • Step 1: you have rating of best = 10to worst = 1)
    • Step 2: you make these good and bad (e.g.,good = 10 to 6; and bad = 5 to 1
  21. can you make Categorical data into continuous data?
    NO!
  22. Types of continuous data
    • •  Ordinal (in order)
    • •  Interval (in order and same differences)
    • •  Ratio (in order, same differences and realzero point)

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