Statistics (PSY241)

Statistics in Psychology. Chapter 1. Introduction to statistics. Populations & samples. Correlation method. Experimental method. Independent & dependent variables. Experimental and control groups. Quasi-experimental method. Variables and measurement. Discrete & continuous variables. Scales of measurement (Nominal, Ordinal, Interval, Ratio).

Statistics in Psychology. Chapter 2. Frequency distributions. Frequency distribution tables. Sum of scores. Proportions and percentages. Percentile rank. Cumulative frequency. Cumulative percentile. Frequency distribution graphs. Shapes of frequency distributions.

Statistics in Psychology. Chapter 3. Central tendency. Mean. Median. Mode. Central tendency distribution shapes.

Statistics in Psychology. Chapter 4. Variability. Measures of Variability. Interquartile Range (IQR). Standard Deviation. Variance. Sum of Squares. Constants. Error variance. Factors that affect variance.