Study Guides (238,097)
United States (119,676)
Psychology (663)
PSYC 2017 (42)
All (41)

Test 2 Study Guide

23 Pages
Unlock Document

Louisiana State University
PSYC 2017

PSYC2017Test2Important Terms for Experiment DesignThere are several ways to manipulate the IVoExperimental manipulationoBy presence or absence of the IVoBy changing the amount of the IV givenoBy introducing different types of eventsoInstructional manipulationHow do you compare PerformanceoBetweenparticipants vs withinparticipantsoIf each participant only experiences 1 of the conditions for an IV then it is a betweenparticipants IVoIf each participant experiences all of the conditions for an IV then it is a withinparticipants IVSame as repeated measure designLess people needed for the experimentComparing performanceoIn a betweenparticipants design you compare 1 groups performance to the other groups performanceoIn a withinparticipants design you compare the individuals performance on one task to the same individuals performance on a different taskHow are they differentoBetweenparticipants designs are good when you cant undo the experimental manipulationoThey are faster for each participant than withinparticipant designsoMore individual difference variance but if group differences are big then they are fineoWithinparticipants designs are good when you think there is a lot of individual variance because you compare how an individual does in each of the conditionsoMuch more time consumingoMore sensitive to smaller differences between the control and experimental conditionsoWith counterbalancing a must you have to be able to undo the experimental manipulationPretests and posttestsoPretests are given before the IV is manipulatedoPosttests are given after the manipulationoPosttests are recommended alwaysoPosttests are sometimes necessary but mostly used as an equal groups checkoWhen using a pretestposttest design it is not considered a withinparticipants design because each group experiences the IV differently and you are still comparing group not individual performanceHow many IVs do you haveo1 IV is called a oneway experiment withlevelsconditionso2 IVs is called axdesign The firstis the number of levelsconditions in the first variable and the secondis the number of levels in the second variable 2x2 3x4 etco3 IVs is called axxdesign ex 2x2x4More advanced termsoFactorial design any design with 2 or more IVsoMixed factorial design any design with at least 1 withinparticipants IV and at least 1 betweenparticipants IVoMain effect when there is a difference in performance or outcomes between the levels of a single IV you can have the same number of main effects as you have number of IVs
More Less

Related notes for PSYC 2017

Log In


Don't have an account?

Join OneClass

Access over 10 million pages of study
documents for 1.3 million courses.

Sign up

Join to view


By registering, I agree to the Terms and Privacy Policies
Already have an account?
Just a few more details

So we can recommend you notes for your school.

Reset Password

Please enter below the email address you registered with and we will send you a link to reset your password.

Add your courses

Get notes from the top students in your class.