PSYC 2030 Lecture Notes - Lecture 7: Statistical Inference, Descriptive Statistics, Statistical Hypothesis Testing

• School: York University
• Department: Psychology
• Course: PSYC 2030
• Professor: Krista Phillips

Document Summary

There are factors on all of the designs can play the validity of a study. Confound = any variable that varies with independent variable that could potentially provide a different explanation of your results. **confounding can occur if the independent variable is not defined specifically enough. Best way to describe a data depends on the data. Descriptive statistics includes collecting, organizing, summarizing, and presenting data. Inferential statistics is when we make inferences , do hypothesis testing, determine relationships, and make predictions. Sample has to be representative of the larger population. Hite 90% of married feel emotionally neglected in their marriage: criticized her survey was sent out to select women, 4. 5% was returned. Must make sure various groups within your population has been proportionately represented. Procedure for selecting subjects that ensures each member in the population has equal chance of getting selected. *sampling that is random is likely to be representative especially in larger samples vs.