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First 5 Lectures - Research Methods Grades Class is curved...

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Research Methods 1/4/2010 2:56:00 PM Grades: Class is curved to your advantage Lecture exams: (60 %) Text book questions (week 6 & 10) Lecture material 50 question multiple choice Reviews will be available Lab Quizzes: First 10 minutes Second lab of the week Only cover lecture material, do not cover textbook material. Extra Credit: Can sign up with Experimentrics to be in a study. Can earn 1 point toward exam scores. Statistics: Will be covered in Lab. Necessary to evaluate results, but the TA will re-explain everything. Lab: Lots of writing to communicate. APA format. Application of research tools. Design your own experiment. Statistics will be covered in Lab. Necessary to evaluate results, but the TA will re-explain everything. Lecture: Discuss research tools. What kind of questions you should ask for the rest of your life when facts are presented. Website is on Blackboard.
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Lecture 1 1/4/2010 2:56:00 PM Psychology looks at behavior in a more structured way. We need to differentiate between our beliefs and scientific explanations. Beliefs: ex. Mom says you’ll get a cold without a sweater, gives you chicken soup when you do catch a cold. o Need no evidence. o Based on a respected authority. (Mom, Newscaster, Priest) o Continue to maintain the belief even in the face of counter- evidence. Scientific Explanations: o Evidence Based (empirical) Objective and unbiased o Self-correcting Modify scientific explanations when faced with counter- evidence. Constantly changing. A theory is a story that is put together from gathered evidence. Constantly modifying them because we are always gathering new data to make sure it is valid while at the same time using the original evidence to make predicts as to what we will see. You can never 100% prove a theory theory-------data Design Hypothesis: an idea based on a theory or data you have collected. Must see if your hunch is correct or not. o Ex. People all have an intuition that television watching does effect children for example watching television violence. Aggressive television watching impacts children’s aggression in terms of their behavior. Poll parents: Correlation o How much violent television does your child watch each week? o Rate the children as to how aggressive they think they are from 1-9. o Creates a strong correlation.
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Predictor Variable: Can use television to predict how aggressive the child will be. Criterion Variable: The amount of aggression Correlation +1 to -1 Positive Correlation- predictor (x) and criterion (y) variables go up or down together. Negative Correlation- predictor and criterion variables are opposite one another and one increases while the other decreases. Ex. More coffee, less sleep.
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