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Class Experiment. Psych 231: Research Methods in Psychology. Today going to go over the design for the class experiment. Class experiment. Instructions: I’m going to read a list of words. After I’m done, please count backwards by threes from the number that I give you.
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Class Experiment Psych 231: Research Methods in Psychology
Today going to go over the design for the class experiment. Class experiment
Instructions: • I’m going to read a list of words. • After I’m done, please count backwards by threes from the number that I give you. • Then I’ll tell you to write down as many of the words as you can. • Read list • 683 Memory Demonstration
Please recall as many of the items now (write them down). • Check: Newspaper Shrub Minivan Video Dresser Book Tree Car Radio Desk Table Magazine Stereo Truck Flower Recall
What variables might influence performance on a memory task like this? • We’ll select two things: • Mode of presentation (visual vs. auditory) • Structure of the list The issues
Two different presentation modes: See the words Hear the words BOOK CAR DESK DRESSER FLOWER MAGAZINE MINIVAN Class experiment
Two different organizations will be used: • Alphabetical & Categorical BOOK BOOK CAR MAGAZINE DESK DESK DRESSER DRESSER FLOWER MINIVAN MAGAZINE CAR MINIVAN FLOWER Class experiment
Two different organizations will be used: • Alphabetical & Categorical DRESSER DRESSER BOOK BOOK FLOWER MINIVAN CAR MAGAZINE MAGAZINE CAR DESK DESK MINIVAN FLOWER Class experiment
What are the issues that we’re looking at? • What is the Dependent variable? • Construct? • Operationalized? • What is/are the Independent variable(s)? • Mode of presentation • Op: Read to participant, Read by participant • Organization of list • Op: Alphabetical, Categorical memory accurate recall of words from list The issues
How many conditions do we have? • What is the design of the study? • 2 factors Mode of presentation Read to Read by Alphabetical Organization of list Categorical • What are your predictions? The design
I have put the materials together and posted them on the syllabus (click on “class experiment) • Your homework is to • Download “Exp packet” • Fiind four volunteers • Collect some data • Bring the data back to class on Monday • I will compile and analyze the results • Based on this experiment and these results you will produce an APA style research report Class experiment
In the packet you’ll find: • Instructions • To create the stimuli • To read to your participants • For compiling the data (data sheet provided) • Four consent forms • Debriefing sheet Class experiment
Find 4 volunteers • Test each participant (one-at-a-time, in one of the conditions) (Across your 4 volunteers, you should have tested all 4 conditions) • Following presentation of the word list, • Have them count backwards by 3s for 15 sec. • Ask them to recall as many of the words as they can (have them write them down) • Count up the number of correctly recalled words and enter this information into the data summary sheet • Bring the data back to class on Monday The Procedure
What do we need to control? • Presentation rate • Amount of time for recall • Number of items on the list • Actual items on the list • Any other things we need to think about? • Ethics • Consent form, debriefing • I have create these and they are part of the experiment packet that you download 1 second per item 90 seconds 15 items 5 categories, 3 items per cat (see Exp packet) The design
Complete APA style research report • Intro • There are 3 required readings which you must include these in your introduction • Kirsner (1974) • Donaldson (1980) • Cohen (1963) • Additionally, you must find at least 1 additional article to include in your introduction • Methods, Results, References, etc. • Two drafts (see web pages for specific details) • 1st: due week 10 • Final: due week 15 The class paper
