Psyc 344 1st Edition Lecture 13 Outline of Last Lecture I. All about Hypothesis Outline of Current Lecture II. Hypothesis (cont.)III. Experimental DesignIV. SamplingCurrent LectureTesting Hypothesis:- Experimenter must seek to disconfirm hypothesis- Null hypothesisExperimental Design- Within groups/between groups1. Order effects: Fatigue, Practice (causes you to perform better on later trials)- Multi-group Experiments- Factorial DesignDependent Variable Measures- 3 common areas of measurement: self report, behavioral, physiological2. Behavioral- response rate, reaction time, response duration3. Physiological- Galvanic skin response (measures when hand sweats), Electroencephalogram, heart rate, blood testsSampling- Simple random sampling1. All members of a population have equal chance of being selected - Systematic random sampling2. Every nth member of a population is selected. Must make sure that list is in random order- Stratified Sampling- Cluster samplingThese notes represent a detailed interpretation of the professor’s lecture. GradeBuddy is best used as a supplement to your own notes, not as a substitute.3. Samples should be representative. They should reflect the demographic of the populationTypes of Samples- Nonprobability- not random; most psych experiments done this way. Haphazard; quota- Counterbalancing- equal number of people in all orders of presentation- Latin Squares4. Not complete but: All conditions appear at each ordinal position. Each condition precedes and follows each condition one time. (Ex. B: ABDC; BCAD; CDBA;