PSYC 2F23 Chapter Notes - Chapter 1: Level Of Measurement, Intelligence Quotient, Operational Definition
Document Summary
Statistics: set of mathematical procedures for organizing, summarizing, and interpreting information. Population: the set of all the individuals of interest in a particular study. Sample: set of individuals selected from a population, usually intended to represent the population in a research study. Variable: characteristic or condition that changes or has different values for different individuals. Parameter: value (usually numerical) that describes a population. Statistic: value (usually numerical) that describes a sample. Descriptive statistics: are statistical procedures used to summarize, organize, and simplify data. Inferential statistics: consist of techniques that allow us to study samples and then make generalizations about the populations from which they were selected. Sampling error: the naturally occurring discrepancy or error that exists between a sample statistic and the corresponding population parameter. Correlational method: 2 different variables are observed to determine whether there is a relationship between them. Experimental method: one variable is manipulated while another is observed/measured.
