IntroductoryPsychology-LycomingCollege.pptVIP

Research Methods Hypothesis Students’ Hypothesis Speaking up in class will kill you. My Hypothesis Speaking up in class will not kill you. The Scientific Method Scientific vs. Unscientific Empiricism Theory Describe, explain, predict Fits known facts Predicts new discoveries Falsifiable Parsimonious The Scientific Method Hypotheses Hypotheses ≠ Theory Hypotheses are derived from EMPIRICAL LITERATURE!! Population vs. Sample Research Methods Descriptive Methods Observe and describe behavior Reactivity External Validity Case Studies Surveys Random and Representative Sampling Naturalistic Observation Research Methods Correlational Research Correlation Coefficient Positive Negative No correlation Research Methods Experimental Methods Experimental and Control groups Independent and Dependent variables Independent/Dependent Variables A researcher is interested in how the activity level of four-year-olds is affected by viewing a 30-minute video of Teenage Mutant Ninja Turtles or a 30-minute video of Barney. IV? DV? Experimental Group(s)? Control Group? Independent/Dependent Variables A therapist wants to test a new drug designed to increase the ability of teenagers with ADHD to take accurate notes in class. IV? DV? Experimental Group(s)? Control Group? Independent/Dependent Variables A biopsychologist wants to know whether exposure to testosterone in adult female rats increases their aggressive behavior. IV? DV? Experimental Group(s)? Control Group? Independent/Dependent Variables An industrial psychologist believes that cooling the room temperature may have an impact on the productivity of workers on the assembly line. IV? DV? Experimental Group(s)? Control Group? Research Methods Experimental Methods Experimental and Control groups Independent and Dependent variables Extraneous variables Internal validity Random Assignment Experimenter Bias Sample Bias Correlational or Experimental? A Dartmouth study found that overweight young women (age 23) earne