PSY 313 Lecture Notes - Lecture 6: Institutional Animal Care And Use Committee, Factorial Experiment, Informed Consent
Document Summary
Interaction between factors/interaction one factor affects second factor: parallel lines indicate = constant relationship, factors do not depend on another/no interaction, distance between lines changes = dependency, interaction! Factorial design | manipulation of two or more independent variable with all combinations. Factors are denoted by letters (a, b, c ) and levels per factor denoted by numbers. Disadvantage: participants must undergo numerous treatment conditions. Increases possibility of participant attrition and testing effects. Example: research that manipulates both coffee and alcohol consumption (two-factor. Experimenter measures 3 levels of caffeine factor for the coffee and 2 alcohol levels 3 x 2 factorial design. Measure caffeine factor (3 levels) x alcohol levels (2 levels) x gender (m/f) x college year (f/s/j/sr) 3x2x2x4 design. Principles for ethics in research: autonomy - acknowledge a person"s right to make choices, hold views, and take action based on their values/beliefs. Informed consent is tricky for pregnant woman, children, institutionalized people, non-natives.
