Housekeeping Basics
How many quizzes does this course have?
4
What is the capital of the United States?
Washington DC
Last year Tim and his friend Jack were both too short to ride the roller coaster. Jack went to the park this year and was tall enough to ride. Tim knows that he is taller than Jack, so he knows that he will be able to ride the roller coaster as well. Which method of knowing is Tim using?
a. Method of empiricism
b. Rational method
c. Method of authority
d. Scientific method
b. Rational method
A researcher removes six items from a 20-item scale because doing so increases Cronbach’s α from .82 to .94. The remaining items all assess nearly identical aspects of the construct. What is the most important concern? _____
A. Increasing alpha can never improve a scale
B. Cronbach’s alpha measures criterion validity
C. The scale may have sacrificed construct breadth for internal consistency
D. Removing items necessarily reduces reliability
C. The scale may have sacrificed construct breadth for internal consistency
A higher alpha is not automatically better if item deletion makes the scale overly narrow & reduces coverage of important dimensions
Peer reviewed implies formal academic papers found on academic databases
Popular media consists of blogs and opinion pieces
Amit Shah, Pralhad Joshi
What kind of reasoning uses a few specific observations to produce a general hypothesis?
a. Inductive reasoning
b. Deductive reasoning
c. Scientific reasoning
d. Predictive reasoning
c. Scientific reasoning
What factors can you check to ensure a survey isn't biased? _______
1. Sample
2. Wording of the questions, slanted items
3. Analysis strategy used
4. Sponsors
A 10-item anxiety scale has Cronbach’s α = .96. When compared with a clinician-rated anxiety measure, however, its correlation is only r = .18. Which conclusion is most defensible? __________
A. The scale is reliable but may have poor criterion validity
B. The scale is valid but has poor internal consistency
C. The high alpha proves that the scale measures anxiety accurately
D. The scale has both high reliability and high criterion validity
A. The scale is reliable but may have poor criterion validity
A very high internal consistency indicates that the items are responding consistently, while the weak association with the clinical rated measure raises concern about criterion related validity
What is empirical research and how to identify it?
What is the smallest prime number?
2
What is sampling in survey research?
- selecting a sample and using predetermined question
- careful selection allows generalization
1 Articulate construct and context
2 Choose response format and assemble initial item pool
3 Collect data from respondents
4 Examine psychometric properties and quality
What does "peer review" mean and how does this happen?
Who wrote the Indian national anthem?
Rabindranath Tagore
Differentiate between construct & operationalization? ________
A construct is an abstract, unobservable theoretical idea, while operationalization is the practical method used to measure or manipulate that idea in a study.
What are the approaches to sampling (types of sampling)? Explain and differentiate.
1. Non-probability (convenience)
2. Probability (simple random, stratified random)
Name the 7 sisters in India
Arunachal Pradesh, Assam, Meghalaya, Manipur, Mizoram, Nagaland, and Tripura.