Statistical Methods for Psychological Research - I

Introduction to  Statistics; Descriptive and Inferential Statistics; Variables and Constants; Measurement Scales; Constructing a Grouped Frequency Distribution

Graphic Representation of Data: Basic Procedures; The Histogram; The Frequency Polygon; The Bar Diagram; The Pie Chart; The Cumulative Frequency Graph

The Mode; The Median; The Mean; Properties and Relative Advantages and Disadvantages of the Mode, the Median and the Mean

The Range; The Interquartile and the Semi-Interquartile Range; The Variance; The Standard Deviation; Calculation of Standard Deviation from Raw Scores and Grouped Scores; Properties and Comparison of Measures of Variability

The Meaning of Correlation; Historical Perspective; Correlation: A Matter of Direction; Correlation: A Matter of Degree; The Coefficient of Correlation; Calculating Pearson’s Correlation Coefficient from Deviation Scores; Calculating Pearson’s Correlation Coefficient from Raw Scores; Spearman’s Rank-Order Correlation Coefficient; Correlation and Causation

The Nature and Properties of the Normal Probability Distribution; Standard Scores and the Normal Curve; The Standard Normal Curve: Finding areas when the score is known; The Standard Normal Curve: Divergence from Normality (Skewness and Kurtosis)