PSYB01H3 Chapter Notes - Chapter 13: Statistical Inference, Null Hypothesis, Observational Error
Document Summary
Chapter 13 understanding research results statistical inference basics. Inferential statistics: using samples to make inferences about populations. Inferential statistics = used to determine whether we can state that the results reflect what would happen if we were to conduct the study again and again with multiple samples from the same population. Allow us to arrive at conclusions on the basis of sample data. Allows researchers to make inferences about the true difference in the population means (effect of independent variable) on the basis of the sample data. Provides the probability of the difference between means reflecting random error rather than a real difference. Differences in sample means reflect any true difference in the population means plus any random error. Inferential statistics allow researchers to make inferences about the true difference in the population on the basis of the sample data.
