Psych 344 1st Edition Lecture 10 Outline of Last Lecture II. Research Ethics (cont.)A. Research with animals (cont.)III. Scientific FraudIV. Types of Research A. Descriptive StudyOutline of Current Lecture V. Correlational StudiesVI.Statistical Analysis VII.Quasi Experiment Current LectureCorrelational Studies - Correlational study- Determines relationships between variables. One cannot infer relationship between variables; Study determines if two things are related but not if onething causes the other. - Avoid this method because we want to manipulate variables- Pearson r- measures strength and direction of relationship - Correlation does not equal causation - Advantages: More specific and focused than experimentsDisadvantage: No control over variables - Experimentation = hypothesis testing Statistical Analysis - Significance testing- is the difference between your groups enough to conclude that it must be due to the independent variable. Use inferential statistics to determine significance. - Strong internal validity- if we control our variables and can say something about independent variable in terms of dependent variable. If we do not have any confounds- External Validity can be compromised; could be artificial and not represent anything in the real world These notes represent a detailed interpretation of the professor’s lecture. GradeBuddy is best used as a supplement to your own notes, not as a substitute.- T- test, ANOVAs, One way (directional), 2 way (non-directional), correlation and linear regression, Chi squaredQuasi Experiment - Quasi experiment ex.- measure a whole bunch of people than separate into groups based on maternal love/ attention1. IV: amount of love/ attention2. Construct: something you want to measure and define. Ex: come up with an operational definition for love3. Measure an intelligence score from thousands of kids, then give them more time with their mom, use a one sample t-test to measure 4. Put 3 groups (1- low love 2- medium love 3- high love from mom) then measure their intelligence score, use a 1 factor anova 5. Measure love from mom and nutrition, then use 2 factor