PS101 Lecture Notes - Lecture 3: Statistical Significance, Statistical Inference, Central Tendency
Document Summary
How do psychologists do research (chapter 2) & research. Aplia quizzes: chapter 1 quiz due tomorrow (09/25/15) Challenge: people that study in a less noise/distraction environment will score better grades in the mid-term than people that study in a noisy environment. When researchers" preconceived ideas cause them to find what they expect to find (having a hypothesis made) Can influence the participant or the researcher (can be subtle--head nod, smile, etc. ) Cure: blind and double blind techniques (hiring ras and removing experimenters) Placebo effect: positive responses to treatment due to expectations not the treatment itself. Nocebo effect: negative effects to a treatment due to expectations not the treatment itself. Outcomes of experiments: not everyone gets the same score (gaining a variety of statistics) Expect a distribution [expect a normal distribution (bell curve)] Two kinds of statistics: descriptive and inferential. Used to give basic info about variable results.
