PSYB07H3 Study Guide - Midterm Guide: Interquartile Range, Central Tendency, Sampling Distribution
Document Summary
Variable - a property of an event or an object that can take on diff values. Ex: height, weight, eye colour, gender, temperature, pet type. Dependant variable - the result that you measure, dependent on the iv. Continuous variable - temperature (something you can"t break into groups) Qualitative type - categorical data; (numbers do not matter) gender. Quantitative type - measurement data; grades on a test. Nothing is implied about the numerical differences on scale. Interval - numerical differences between the scale points are meaningful. Doesn"t imply a true zero, therefore you cannot do ratios. Ratio - same as interval but it has a true zero. A set of measure that reflect where on the scale the distribution(a set of values, variable) is centered. Mean (average) - sum of all values / num of values. Median - point at 50% above and below. Mean = sum/num of vals = 24/8 = 3.
