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1. Basic Concepts
(Articles/Statistics)

Chapter 1 - Basic Concepts   Population The entire collection of events that you are interested in. Although we wish to make claims about the entire population, it is often too large to deal with. Two ways of getting ar...Click on the link below for more details
08/02/2009 | 418 Hit(s) | 0 comment(s) | (0 vote) | Read more...

2. Describing and Exploring Data
(Articles/Statistics)

Chapter 2: Describing and Exploring Data   Once a bunch of data has been collected, the raw numbers must be manipulated in some fashion to make them more informative. Several options are available including plotting the data or calculatin...Click on the link below for more details
08/02/2009 | 163 Hit(s) | 0 comment(s) | (0 vote) | Read more...

3. The Normal Distribution
(Articles/Statistics)

Chapter 3 : The Normal Distribution In Chapter 2, we spent a lot of time plotting distributions and calculating numbers to represent the distributions This raises the obvious question:   Why Bother? Answer: because once we know (or assume) ...Click on the link below for more details
08/02/2009 | 265 Hit(s) | 0 comment(s) | (0 vote) | Read more...

4. Sampling Distributions and Hypothesis Testing
(Articles/Statistics)

Chapter 4 Sampling Distributions and Hypothesis Testing   Statistics is arguing Typically, we are arguing either 1) that some value (or mean) is different from some other mean, or 2) that there is a relation between the values of one variab...Click on the link below for more details
08/02/2009 | 247 Hit(s) | 0 comment(s) | (0 vote) | Read more...

5. Basic Concepts of Probability
(Articles/Statistics)

Chapter 5 Basic Concepts of Probability   Terminology Usually, probabilities are descriptions of the likelihood of some event occurring (ranging from 0 to 1) The probability of two events occurring will be termed independent if knowledge of...Click on the link below for more details
08/02/2009 | 197 Hit(s) | 0 comment(s) | (0 vote) | Read more...

6. Categorical Data and Chi-Square
(Articles/Statistics)

Chapter 6 Categorical Data and Chi-Square   Reminder about hypothesis testing: Assume what you believe (H1) is wrong *Construct H0 and accept is as a default Show that some event is of sufficiently low probability given H0 *** Reject H0 ...Click on the link below for more details
08/02/2009 | 166 Hit(s) | 0 comment(s) | (0 vote) | Read more...

7. Hypothesis Testing Applied to Means
(Articles/Statistics)

Chapter 7 Hypothesis Testing Applied to Means   Typical Questions: Q1: Is some sample mean significantly different from what would be expected given some population distribution? Example: say that I sampled 25 undergraduate students at Scar...Click on the link below for more details
08/02/2009 | 262 Hit(s) | 0 comment(s) | (0 vote) | Read more...

8. Power
(Articles/Statistics)

Chapter 8 Power Chapter 4 flashback ... H0 true H0 false Reject H0 Type I error Correct Fail to Correct Type II error reject H0 Type I error is the probability of rejecting the null hypothesis when it is really true The probability of makin...Click on the link below for more details
08/02/2009 | 288 Hit(s) | 0 comment(s) | (0 vote) | Read more...

9. Correlation and Regression
(Articles/Statistics)

Chapter 9 Correlation and Regression   Terminology: Correlation vs. Regression This chapter will speak of both correlations and regressions both use similar mathematical procedures to provide a measure of relation; the degree to which tw...Click on the link below for more details
06/02/2009 | 256 Hit(s) | 0 comment(s) | (0 vote) | Read more...

10. Simple Analysis of Variance
(Articles/Statistics)

Chapter 11 Simple Analysis of Variance   T-Test reminder: During PsyB07 we talked about analyses that could be conducted to test whether pairs of means were significantly different. For example, consider an experiment in which we are tes...Click on the link below for more details
06/02/2009 | 178 Hit(s) | 0 comment(s) | (0 vote) | Read more...

11. Multiple Comparisons Among Treatment Means
(Articles/Statistics)

Chapter 12 Multiple Comparisons Among Treatment Means   When you use an ANOVA and find a significant F, all that says is that the various means are not all equal It does not say which means are different The purpose of this chapter is des...Click on the link below for more details
06/02/2009 | 141 Hit(s) | 0 comment(s) | (0 vote) | Read more...

12. Factorial Analysis of Variance
(Articles/Statistics)

Chapter 13 Factorial Analysis of Variance     In Chapter 12 we focused on "one-way" analysis of variance which is the appropriate analysis when you have only one variable (or factor) with multiple levels In the current chap...Click on the link below for more details
06/02/2009 | 201 Hit(s) | 0 comment(s) | (0 vote) | Read more...

13. Repeated Measures ANOVA
(Articles/Statistics)

Chapter 14 Repeated Measures ANOVA    All the ANOVA stuff we have done so far has had different subjects in the various cells of the experimental design  That kind of experiment...Click on the link below for more details
06/02/2009 | 263 Hit(s) | 0 comment(s) | (0 vote) | Read more...

  
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