Successfully reported this slideshow.
Upcoming SlideShare
×

# Using Technology in Data Analysis

1,507 views

Published on

Whether you are faced with performing quantitative or qualitative research managing and analyzing data is always going to be a major part of the work. Discover a wide variety of statistical software programs that you can use and learn the advantages and disadvantages of each depending on the type of data you will be using. This is a presentation developed through the Graduate Resource Center at the University of New Mexico.

Published in: Education, Technology
• Full Name
Comment goes here.

Are you sure you want to Yes No
• Be the first to comment

• Be the first to like this

### Using Technology in Data Analysis

1. 1. D a t a A n a ly s is RWJF || GRC
2. 2. A v a ila b le S o ftw a re• Quantitative R • SPSS • STATA Qualitative • NVivo Atlas.ti
3. 3. T h e B ig P r o b le mHow do you ask a question that a computer cananswer?
4. 4. A s k in g t h e r ig h t q u e s t io n• Are you looking for descriptive statistics?• Are you looking for confirmation/refutation of a hypothesis?
5. 5. A s k in g t h e r ig h t q u e s t io n• Descriptive statistics are perhaps the easiest to structure. Quantitative: Central tendency, quartiles, data range • Qualitative: Frequent words, reoccurring themes
6. 6. A s k in g t h e r ig h t q u e s t io n• Hypothesis testing requires additional steps • Formulate hypothesis prior to test, have a clear null and alternative established
7. 7. A s k in g t h e r ig h t q u e s t io nH0: There is nodifference/relationshipHa: There is adifference/relationship
8. 8. A s k in g t h e r ig h t q u e s t io n• Quantitative Regression • Is there a relationship between variable X and Y?
9. 9. A s k in g t h e r ig h t q u e s t io n• Quantitative Difference • Is there a difference between variable X and Y?
10. 10. A s k in g t h e r ig h t q u e s t io nMany problems with any kind of data analysis softwarestem from impossible to answer questions.
11. 11. S im p lif y Q u e s t io n sBreak your question down to individual steps, as smallas you can go.
12. 12. S im p lif y Q u e s t io n s“I need to test the GPA of students who scored belowa 26 on the ACT vs. those who scored above.”
13. 13. S im p lif y Q u e s t io n s• To answer this question, you need a software function that can order the data, split it, and test the variables you need.• It can be hard to find one program that does all that - but it can be easier if you break the problem up into its components.
14. 14. S im p lif y Q u e s t io n s“I need to test the GPA of students whoscored below a 26 on the ACT vs. thosewho scored above.”• Break the question down into individual steps: • Sort the data by lowest to highest ACT • Divide into ACT scores below 26 and scores above • Run a two-sample T-test on the GPA’s from each group.
15. 15. S im p lif y Q u e s t io n sData analysis is a lot easier when each step is madesmaller.
16. 16. C h o o s in g y o u r S o ftw a re• Quantitative R • Pros: Most flexibility, free, customized software Cons: Very difficult to learn
17. 17. C h o o s in g y o u r S o ftw a re• Quantitative SPSS • Pros: User friendly, frequently used. Cons: Expensive, can be difficult to interpret results.
18. 18. C h o o s in g y o u r S o ftw a re• Quantitative STATA • Pros: Can handle large data sets Cons: Expensive, can be difficult use
19. 19. C h o o s in g y o u r S o ftw a re• Quantitative Excel • Pros: Ubiquitous, somewhat smaller learning curve Cons: Fundamental limitations in formulas
20. 20. C h o o s in g y o u r S o ftw a re• Qualitative NVivo • Pros: Can structure qualitative data Cons: Expensive, can be difficult use
21. 21. C h o o s in g y o u r S o ftw a re• Qualitative ATLAS.ti • Pros: Can structure qualitative data Cons: Expensive, can be difficult use
22. 22. Whe re d o e s s o f t w a r e f it in ?Quantitative Hypothesis Test (Software) Conclusion
23. 23. Whe re d o e s s o f t w a r e f it in ?Qualitative Hypothesis Theory Test (Software) Conclusion
24. 24. Q u a lit a t iv e D a t a A n a ly s is• Two upcoming workshops: NVivo: Thursday, December 1st, 2011, 11.00am, RWJF Conference Room • ATLAS.ti: Thursday, December 8th, 2011, 11.00am, RWJF conference Room