Methods and Statistics

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   Statistical Applets


   Measurement Scales:nominal,ordinal,interval


   Descriptive Statistics

• Raw Scores
• Frequency Distribution
• Histogram
• Frequency Polygram

Skewed Distributions

   Frequency distributions

• Grouped frequency distribution
• Ungrouped frequency distribution

   Statistical moments

• Arithmentic mean, variance, and standard deviation
• Measures of Central Tendency
• Variability(Standard Deviation)

   Standard scores and the standard normal distribution

• Standard scores
• Standard normal distribution

   Correlation and regression

• Correlation
• Positvie and Negative Correlations
• Comparing two distributions
• Pearson product-moment correlation coefficient
• Linear regression

   Probability

• Unions of events (OR)
• Union of three events that are not mutually exclusive
• Intersections of events (AND)

  Sampling Theory

• Population, sampling, and sample distributions
• Sampling distribution of the mean
• Estimating the moments of population and sampling distributions from sample statistics

  Inference: One Sample

• One-sample statistics

  Inference: Two Samples

• Sampling distribution of the difference between means
• Two-sample statistics
  
  
  
  
  
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