Lecture_3_Notes_Pages

# Lecture_3_Notes_Pages - Slide 1 Science and Statistics...

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Unformatted text preview: Slide 1 Science and Statistics Tuesday, January 20 ___________________________________ ___________________________________ ___________________________________ ___________________________________ ___________________________________ ___________________________________ ___________________________________ Slide 2 What is science? Â¡ Science is useful! SCIENCE ___________________________________ ___________________________________ ___________________________________ ___________________________________ ___________________________________ ___________________________________ ___________________________________ Slide 3 What is science? Â¡ Goals: understanding, prediction, and control Â¡ Features: Â¡ Open Â¡ Communicable Â¡ Public (peer review) Â¡ Dependent on data Â¡ Disinterestedness/objectivity ___________________________________ ___________________________________ ___________________________________ ___________________________________ ___________________________________ ___________________________________ ___________________________________ Slide 4 Steps in the scientific research process Develop a research idea Convert into hypotheses Define variables Design Study Conduct Study Analyze Data Report Results ___________________________________ ___________________________________ ___________________________________ ___________________________________ ___________________________________ ___________________________________ ___________________________________ Slide 5 Develop a research idea Â¡ Can come from observation of a problem Â¡ Can come from theory Â¡ A theory is essentially a set of statements about the relationships between variables that explains WHY they are related. Â¡ Theories provide meaning, guide future research, and produce testable hypotheses. ___________________________________ ___________________________________ ___________________________________ ___________________________________ ___________________________________ ___________________________________ ___________________________________ Slide 6 Convert into hypotheses Â¡ Hypothesis: prediction about relationships among variables of interest Â¡ e.g., attendance in class will be positively related to final grade in the course Â¡ Scientific experiments attempt to disprove hypotheses ___________________________________ ___________________________________ ___________________________________ ___________________________________ ___________________________________ ___________________________________ ___________________________________ Slide 7 Define variables Â¡ Based on theory or relevant literature, define variables of interest and decide how to measure them Â¡ Use accepted measures or develop new measures Â¡ Next lecture is all about measurement!...
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Lecture_3_Notes_Pages - Slide 1 Science and Statistics...

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