# 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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 Author: mdawg ID: 307363 Filename: Research quiz 2 Updated: 2015-09-05 03:25:54 Tags: Research quiz Folders: Description: Research quiz 2 Show Answers:

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