Psychology 403. DATE Tues Aug. 26 & Laboratory in Cognitive Psychology Lecture and Laboratory Activity and Assignment Schedule MAJOR CONCEPTS PART I. Using Statistics -review of descriptive statistics central tendency & variability tabular & graphic summaries of the data Thurs Aug. 28 -review of inferential statistics -some basics of statistical hypothesis testing NHST (Null Hypothesis Significance Testing) null & experimental or alternate hypothesis 1-tailed and 2-tailed tests alpha level critical value p (statistical significance) effect size magnitude of effect vs. level of statistical significance confidence intervals type I & II errors z-test t-test degrees of freedom between vs. within subject designs Tues Sept. 2 & Thurs Sept. 4 (Intro to Excel basics) -RT paradigm additive factors logic measures of speed and accuracy speed-accuracy trade-off -Basics of lab report writing LECTURE TOPICS READINGS from: RESEARCH METHODS in Psychology -Introduction to Course Procedures and Chap. 1, Introduction, pp. 1-13. General Course Overview Chap. 2, The Scientific Method, pp. 14-43. -Research Ethics- the use of human subjects: Chap. 3, Ethical Issues in the Conduct of a brief introduction Psychological Research, pp. 44-82. (We will -Describing the data return to these issues in more detail later in the -Testing Hypotheses course.) Chap. 12, Data Analysis and Interpretation: Part I Describing Data, Confidence Intervals, Correlation, pp. 360-400. Chap. 13, Data Analysis and Interpretation: Part II Test of Statistical Significance and the Analysis Story, pp. 401-441. (These chapters review most of the statistical concepts that we will use, and for the most part should be a review of material covered in Psy 295. Not all sections of Psy 295 cover exactly the same material, so you may find a some things here that are new. Our goal is for you to understand the material more deeply than your first time through it in Psy 295). -Introduction to Excel (briefly)- extra help is available -Reaction time paradigm measurement of cognitive processing speed-accuracy trade-offs -Issues in experimental design independent, dependent & control variables experimental design considerations No Experiment this week (Every week that there is an experiment you are to turn in, by e-mail, a statement of the hypothesis, identification of the independent, dependent, and control variables, and predictions of how the dependent variables should dependent upon the independent variables if the hypothesis is true. See the course webpage for a sample of the assignment for the first experiment.) Exp 1: Line length discrimination under speed or accuracy instructions (to be conducted on Tues) -Line Length Discrimination: an illustration of the reaction time paradigm (and the relationships between measures of speed and accuracy) -Comparison of two means; z-tests and ttests -Effect size (Cohen's d) -Confidence intervals LAB EXPERIMENT, READING, & ASSIGNMENT Chap. 14, Communication in Psychology, pp. 444Handout on the Line Length Discrimination 490. (This assignment will be relevant to all of the experiment. writing that you do in the course.) *(by e-mail turn in the hypothesis & predictions for the line-length experiment) -Detailed consideration of what must be in the first lab report Tues Sept. 9 & Thurs Sept. 11 Fall, 2003 Chap. 7, Independent Groups Designs, pp. 195-234. (Although this experiment is a repeated measures design, many basic topics in data analysis are introduced in this chapter on the independent groups design.) Chap. 8, Repeated Measures Designs, pp. 235-258. Chap. 12, Data Analysis and Interpretation: Part I Describing Data, Confidence Intervals, Correlation, see especially pp. 373-375 (Measures of Effect Size); pp. 375-382 (Confidence Intervals) Chap. 13, Data Analysis and Interpretation: Part II Test of Statistical Significance and the Analysis Story, see especially, pp. 408-414 (t-tests, effect sizes & power). RESEARCH METHODS... = RESEARCH METHODS in Psychology by Shaughnessy, Zechmeister & Zechmeister, 2002. * = new writing assignment ¤ = assignment to be turned in *write a full lab report on Line Length Discrimination- Title, abstract, introduction, method, results, discussion (There will be a handout and we will go over the contents of the full report in detail in class next week.) No Experiment this week DATE Tues Sept. 16 & MAJOR CONCEPTS -linear regression equation for a line slope & intercept R2 (coefficient of determination) LECTURE TOPICS -Mental Rotation -Linear regression Thurs Sept. 18 READINGS from: RESEARCH METHODS in Psychology LAB EXPERIMENT, READING, & ASSIGNMENT Note: This book does not contain any information on ¤(hand in Line Length Discrimination) Due Tues linear regression, but the material on correlation (pp. 388-397) is closely related. The material will Shepard, S. & Metzler, D. (1988) Mental rotation: be presented in class, and you are urged to Effects of dimensionality of objects and type of consult your textbook from Psy 295 if you still have task. Journal of Experimental Psychology: it. Human Perception & Performance, 14, 3-11. (This paper is related to the experiment for this week, and is an example of what a research paper in the published literature might look like.) Handout on the Mental Rotation experiment Exp 2: Mental Rotation *write a brief lab report- (See the handout explaining what should be included in a "brief" lab report.) Thurs Sept. 18 -- QUIZ--(1/2 hour) at beginning of class Tues Sept. 23 -The Stroop Effect -1-way ANOVA, 3 levels F test & variance ratios random vs. effect variance Thurs Sept. 25 degrees of freedom main effect randomized vs. repeated measures (between vs. within subject) designs multiple comparisons between pairs of means Tues Sept. 30 -2-way ANOVA & main effects & interactions Thurs Oct. 2 Tues Oct. 7 & Thurs Oct. 9 -subject rights mechanisms for protecting subject rights informed consent cost-benefit considerations community standards -Finding relevant psychological literature general issues in literature searches using PsychINFO, ISI databases -Comparisons of more than 2 meansAnalysis of Variance (ANOVA) (quiz will cover material from the readings, lectures and laboratory to date) Chap. 13, Data Analysis and Interpretation: Part II Test of Statistical Significance and the Analysis Story, see especially pp. 414-420; pp. 425-427, ANOVA (Although this covers the between subjects design, and we are doing a within subjects design, it is a useful introduction.) and pp. 427-431 for a brief introduction to ANOVA in a repeated measures design. -Perceptual Matching Chap. 13, Complex Designs, pp. 432-437. -Simultaneous examination of the effects of 2 independent variables (2-way ANOVA) -Scanning Short-Term Memory Chap. 3, Ethical Issues in the Conduct of Psychological Research, pp. 44-82. -Ethical Issues in the use of human and animal subjects -Tools for searching the scientific literature Using PsychINFO & ISI databases on-line ¤(hand in Mental Rotation) Due Thurs Handout on the Stroop experiment Exp 3: Color Stroop Effect *write a brief lab report- (See the handout explaining what should be included in a "brief" lab report.) ¤(hand in Stroop) Due Thurs Exp 4: Perceptual Matching *write a brief lab report- (See the handout explaining what should be included in a "brief" lab report.) ¤(hand in Perceptual Matching) Due Thurs Exp 5: Scanning Short-Term Memory *No lab report required. We will discuss the results of the experiment in class. Tues Oct. 14 & Thurs Oct. 16 Thurs Oct. 16 Tues Oct. 21 & No Exp: Begin Independent Project Between subjects ANOVA --FIRST MIDTERM EXAM--Organization in Memory -Intro to Signal Detection Theory: an application of statistical hypothesis testing Thurs Oct. 23 RESEARCH METHODS... = RESEARCH METHODS in Psychology by Shaughnessy, Zechmeister & Zechmeister, 2002. * = new writing assignment ¤ = assignment to be turned in ¤(hand in Independent Project assignment) Due Thurs Exp 6: Organization in Memory *write a brief lab report- (See the handout explaining what should be included in a "brief" lab report.) DATE Tues Oct. 28 & Thurs Oct. 30 Tues Nov. 4 MAJOR CONCEPTS & Thurs Nov. 13 Tues Nov. 18 & READINGS from: RESEARCH METHODS in Psychology LAB EXPERIMENT, READING, & ASSIGNMENT -signal detection theory concepts signal, noise, sensitivity (d'), criterion (ß), bias, yes-no paradigm, ROC curve -Intro to Signal Detection Theory: an application of statistical hypothesis testing, continued ¤(hand in Organization in Memory) -signal detection theory as an application of principles of statistical hypothesis testing -Signal Detection Theory -Intro to Signal Detection Theory: an application of statistical hypothesis testing, continued PART II. Conceptual Underpinnings of Statistical Hypothesis Testing -descriptive statistics relation to measurement central tendency, variability, relationships among data -normal distributions mean, sd, variance standard scores -distributions derived from normal distributions -NHST -statistical power -confidence intervals -effect size -t distribution -normal (and almost normal) distributions) -expectations about samples from normal distributions -differences between 2 means: z & t-tests ¤(hand in Independent Project assignement) Due Thurs Exp 7: Signal Detection Theory *write a full lab report- Title, abstract, introduction, method, results, discussion No Exp: Continue Independent Project -F distribution -random, effect, & total variance -main effects -interactions -differences between 3 or more means with one factor: 1-way analysis of variance (ANOVA) -differences between means with 2 or more factors: n-way ANOVA -sources of variance estimates for main effects in between subjects designs -sources of variance estimates for interactions in between subjects designs & Thurs Nov. 6 Tues Nov. 11 LECTURE TOPICS Thurs Apr Nov. 20 No Exp: Continue Independent Project Review chapters 12. & 13. Tues Nov. 25 ¤(hand in Signal Detection Theory) No Exp: Continue Independent Project Exp 8: Independent Project gather data Thurs. Nov. 27 Tues Dec. 2 ---HOLIDAY- THANKSGIVING--- Thurs Dec. 4 Mon Dec. 8 5:00 p.m. Fri. Dec. 12 10-12 --REVIEW & COURSE EVALUATION---DEADLINE FOR TURNING IN INDEPENDENT PROJECT---SECOND MIDTERM EXAM-- (Independent Project Gather data if not finished in previous week) ¤--FINAL PROJECT REPORT DUE-- Note: The assignments and lecture topics are subject to change as the term progresses. Changes will be announced in class, and students are responsible for being aware of any changes. Psy403S0Psy403S03LecSched&Assign2LecSched&Assign RESEARCH METHODS... = RESEARCH METHODS in Psychology by Shaughnessy, Zechmeister & Zechmeister, 2002. * = new writing assignment ¤ = assignment to be turned in