Lecture Notes for Apr 29, 2009

exact replication
(3 answers)

mata-analisis
(3 answers)

validity: is it true?no if some one is lieing but have we got to the true facts.internal validity: are the conclucions telling us the truth?external validity: are the results true for populations beyond tha of the sample?generalizong to other populations undergraduate intro psych studentsanimals we we hear and act the same way as animals?generalining to other collegesgeneralizing across gender Dutton and Aron (1974) were told they might get a plesent shock or a painful scockthey reported more attracteion to the female confeterategeneralizing to other ethnic groups tolorate different amonts of proxmititygeneralizing to other situations they went to a natural park. people can cross the brige, sturdy or a woobling brige.female confederate approched males- at the end she offered her phone number.the men who crossed the scary brige called her more offten then the safe brige people.a limitation on generalizability is a type of interactionlimits of generalizing from volunteerseffects of testing on generalizability pre-test influnece a personpractice effect they got better simply because they took the first testreactivity they get tipped of what the test is aboutinterrupted time-series designfeild studies and naturalistic observation time samplingsituation samplingthreats to external validityreactive testingreactive effects of experimental situationmultiple treatment interferencethe best evidence for externak validity is reolication with different populations, situations and timesaccept the face that no single...purpose of lab research is not necessarily generalizationif we are preforming basic research to test aspects of a theory, then we want to know: ...weather something can happen rather than wheather it typically does happen...what happens under condions ...replication is the best exact replication allows you to relate your results to previous results.... says my people are like your peopleto cinfirm a surprising or unexpected result ("extraordinary claims require...)successful replication gives evidence for generalizabilityfailure to replicate does not negate original finding ...conceptual replication replicaion does not need to use the same kind of people or the exact matirials"insults increase aggressive behavior" to replicate with different age group, must use age-appropriate insultsmeasure DV in operationally differnt waysreploicaions in many different ways boost confidence
(2 answers)