HW: DO THAT SILLY HYPOTHESIS SHIT….write a simple hypothesis…she’ll show us how to do a comparison using excel later…don’t worry about learning how to do it on your own… DUE THURSDAY 10/12/06 10/10/2006 The scientific method-Theory – identify general rules of how things in the world works o explains why something happens o organize o predict-Broad-Relevant Theory Hypothesis Study Statistical Analysis Replicate-Hypothesis o Testable prediction-Specifics – need to be specific to test things-Falsifiable – has to be open to be proven wrong-Null hypothesis – this kind of hypothesis is BAD o Predicting no relationships o Cannot be proven o Only reject-Study o Test of hypothesis-Naturalistic observation – Hawthorne Effect…the very presence of observation will chance the dynamic of how the subject interacts….usually high external validity-Laboratory – low validity environment, but can manipulate the environment-Questionnaire-Statistical Analysis o Quantitative data o Interpreting results-Is hypothesis supported? Correlations-How are two variables related?-Correlation o statistical measure of relatedness Positive correlation – variables increase or decrease together / - up slope
Negative correlation – one variables go up, the others goes down. \ -down slope Correlation coefficient-numeric measure of how well points fit line-rage -1 to 1 Coefficient of determination-strength of correlation Correlation DOES NOT imply causation-direction of relationships unknown Experimental studies-experiment o manipulation effect-Bandura’s social learning experiment-Independent variable o What gets manipulated-dependent variable o what gets measured Independent variable dependent variable Experimental group Control Group Random assignment Read summaries for each chapter 1-5 Also do those silly labs, 10 questions based on and another 40 questions based on the textbook. Bring a scantron UCD 2000 Don’t read over the notes, look at the stupid summaries or else you’ll never get it right because she doesn’t use easy multiple choice. Measuring Behavior – Reliability and Validity Creating operational Definitions What to measure-verbal behavior-overt action – planned or purposeful expression-nonverbal behavior-physiology Measuring behavior-create environment-participants perform behavior-record behavior-qualitative (qualities of something) to quantitative
-measurement error – any inaccuracies in measurement Measurement Error Random-inconsistent variations-not due to construct-unrelated to hypotheses-random – results due to chance Bias-systematic variations (find things that aren’t really there)-systematic-threaten validity-Reliability-stable, consistent scores-free of random error-Validity relies on reliability Environment Errors-Standardization o Standardization versus humanism Participant Errors-Random error o Large sample help stop the fluctuations-participant bias
This is the end of the preview. Sign up to
access the rest of the document.