Need Stats help!

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Cayetana

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OK so I'm taking an "intermediate statistics: experimental methods" class and need some serious help. My prof reads everything off the projector, blends one idea into another before I even have a clue about how to do the first one, and in general does not explain anything like it's meant to teach somebody who does not know this stuff already.

The first quiz is tomorrow and I'm freaking out.

I need help on stuff like ANOVA, F test, T test, interpreting SPSS output, etc. Do you know of any ONLINE help that I can access which explains each concept clearly, with examples, and maybe, hopefully... with a message board that is active and has people who can answer questions? I'm really lost and it's too late to drop the class and get a refund.

Thanks!
 
those heavily laminated things about stats at bookstores are helpful.

spss website is active.

wikipedia would also be a way to go.

or just google terms. usually there is a simple explanation out there.

for the most part, look for stars on SPSS output. signifies significance for a lot of operations.
 
try davidmlane.com/hyperstat/
not sure if it's exactly you're looking for or not, but it helped me. good luck!
 
Can't help much as far as the web is concerned, but Tabachnick and Fidell's "Using Multivariate Statistics" can be your bible...
 
Can't help much as far as the web is concerned, but Tabachnick and Fidell's "Using Multivariate Statistics" can be your bible...

Definitely one of the best stats books I've ever used!
 
Definitely one of the best stats books I've ever used!

I wish it wasn't so expensive. I've been hunting around for it and the cheapest i've found is 65 before shipping. I'm sure it's worth it and all, but ouch!
 
I wish it wasn't so expensive. I've been hunting around for it and the cheapest i've found is 65 before shipping. I'm sure it's worth it and all, but ouch!


Yea, it's pricey, but I have had mine for over 4 years and it is still useful...I think I paid $55 for it used...
 
T&F's book is about multivariate stats... the OP's Q was on Anova and t-tests... since those only get a chapter of the T&F book at all, I see that book as having little usefulness to the OP.
 
T&F's book is about multivariate stats... the OP's Q was on Anova and t-tests... since those only get a chapter of the T&F book at all, I see that book as having little usefulness to the OP.

Very true....my comments were mainly aimed at suggesting a text that the OP can keep on the shelf for years to come so they don't end up in this situation next semester/year

I never referred to T&F until my second and third stats classes, and it was particularly helpful come thesis time. I should have been more clear...There are better texts out there for ANOVA, T-tests, etc...

I think my first stats class used Aron & Aron's "Statistics for Psychology," and I wouldn't really recommend it. There are better texts out there...

My take home point: T&F would be a good book to have on the shelf....
 
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Thanks for all the recommendations so far. I will keep the long-term-use books in mind... right now I'm just trying to survive this class! Here are the objectives he has on the syllabus. Yes, he is all over the place too! I would like an internet site with help if possible but if a specific text you know addresses these best then I would like to know about it. Right now the book for the class is: design and analysis, a researcher's handbook, 4th edition. The problem is that it doesn't describe certain basic things at all (that I forgot how to do long ago), or some of the things he is teaching are in different parts of the book and presented in a way that is related to another concept, not the concept he is talking about, so now I don't really understand either concept, OR he writes all these formulas without letting us know what the little letters in there stand for and he also writes formulas differently than the book with little clear explanation of the differences... etc. It's horrible because he gives us no practice exercises or ways to duplicate (a few times) the things he is teaching so we can actually absorb it, and I don't know where to find exercises that pertain exactly to the things he is teaching. Oh yeah... and every single time (after we print out packets and bring them to class) he finds a few mistakes while he is teaching and then re-posts the packets so I have several copies of each with notes on various ones... Anyway, here are the objectives:

1. Use SPSS to run and interpret results for various analysis of variance models.
2. Compute numerical results for analysis of variance models.
3. Identify the advantages and disadvantages for various analysis of variance techniques.
4. Explain the logic of oneway ANOVA.
5. Explain why one would use oneway ANOVA and identify the situations where it would be appropriate.
6. Identify assumptions for the oneway ANOVA and describe conditions under which the F test is robust with respect to these assumptions.
7. Know the structural model for a oneway ANOVA.
8. Be able to interpret computer analysis output.
9. Be able to identify the situations where one would use a t-test and where one would use an ANOVA.
10. Be able to determine the entries in a oneway ANOVA source table.
11. Be able to identify the situations in which post-hoc tests are appropriate.
12. Know and be able to compute a post-hoc test.
13. Calculate and interpret effects size measures for ANOVA models.
14. Be able to define power
15. Explain Type I, Type II errors, Power, comparisonwise and familiywise error rates.
16. Explain effects of sample size, alpha, and the size of the difference between null and alternative means on power and error types.
17. Conduct and interpret power analyses for determining sample size for various ANOVA models.
18. Know what orthogonal and nonorthogonal hypotheses and contrasts are.
19. Be able to generate orthogonal contrasts.
20. Be able to perform planned orthogonal contrasts.
21. Know when one would perform a trend analysis
22. Know what information a treand analysis provides us with.
23. Be able to perform a trend analysis.
24. Write up results for various (univariate) analysis of variance models in APA style.
25. Choose the appropriate statistical test for answering a specific comparative research question.
26. Recognize and write comparative research questions that could be analyzed by a model learned in this course.
27. Objectively evaluate research reports in which (univariate) analysis of variance techniques were used.
 
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