Psychology Key Words (Paper 1) Flashcards
Opportunity Sample
A sample of participants produced by selecting people who are more easily available at the time of the study
Volunteer Sample
A sample of participants produced by asking for people willing to take part
Stratified Sample
Participants are selected from different subgroups (aka. Strata) in the target population in proportion to the subgroup’s frequency in that population
Random Sample
A sample of participants produced using a random technique such that every member of the target population has an equal chance of being selected
Ranked scale
A kind of closed question where respondents are asked to give an assessment of their views using a scale
Open question
Questions that invites respondents to provide their own answers
Closed question
Questions that have a fixed number of possible answers
Questionnaire
Respondents record their own answers, the questions are predetermined, they are provided in written form and there is no face-to-face contact with the other person
independent measures
participants only take part in one condition of the study
repeated measures
all participants take part in every condition of the study
overt observation
when the participants know that they are being observed
covert observation
when the participants don’t know that they are being observed
inter-rater reliability
when there are more than one observers in the study/ the study is filmed and reviewed after. this allows cross-checking and improves reliability and validity
observer bias
when observers misinterpret the situation of the study
reductionism
experimental research requires identifying variables that may contribute to complex behaviour - and breaking it down into its simplest forms