what does reliability refer to?
how consistent a study or measure device is, so if you repeat the study, how similar the results would be (ignoring societal changes);
what does validity mean?
to what extent a piece of research measures what it claims to measure;
what is internal validity?
extent to which what researcher is measuring what was intended, in an experiment it refers to the control of variables to ensure that changes in DV are based on IV;
what is ecological validity?
The extent to which a study is realistic or representative of real life - behaviour would occur in normal circumstances;
what does external validity mean? what are the 2 types?
the extent to which the results can be generalised beyond the research, there are 2 types: ecological and population;
what is the thing to remember the 6 ethical issues?
can do cant do with participants;
What are the 6 ethical guidelines?
CDCDWP: Consent, Deception, Confidentiality, Debrief, Right to Withdraw, Protection of participants;
what is informed consent? how do you deal with it?
A participant’s agreement to take part in a study after being told what to expect.
- consent letter
- detail of the study
- if under 16 parental consent required;
what is the right to withdraw? how do you deal with it?
A participant’s right to leave a study at any time and their ability to do so.
remind the participant that they have the freedom to withdraw their data;
what is deception? and how do you deal with it
misleading participants about the true purpose of a study or the events that will actually transpire
consent form: knowing all aspects of the study
all details debrief
reassure behaviour is normal/typical;
what is presumptive consent?
assuming theyll be fine -
instead of getting consent from the participants themselves, a similar group of people asked if study is acceptable, if they agree, the consent of the original participant is ‘presumed’;
what is prior general consent?
participants give permission to take part in a few different studies, including one that involved deception. By consenting, they effectively give consent to be deceived.;
what is retrospective consent?
Consent after the study;
what is confidentiality?
Protecting information against unauthorized access and use about the participant including name;
how do you deal with confidentiality?
what is protection of participants?
Researchers should not cause any psychological or physical harm, and should leave an experiment in the same state they entered;
how do you deal with protection of participants?
You monitor the participants during the research and allow them to withdraw at any point and stop the research of you feel they are under too much stress. If not then fully debrief them at the end of the research and check on their well being and allow them to withdraw their data if they want. You can also check on them after they have left the research setting to makes sure they are not effected long term.;
what is debriefing? (not an ethical issue)
A description of the true nature and purpose of a study that is given to a participant after the study has ended.;
What is population validity?
the extent to which the findings can be generalized to other populations;
what is historical validity?
the degree to which the results can be generalized across time;
what does operationalisation mean?
defining a variable by specifying how they can be measured;
What is extraneous variables?
any variables other than the independent variable that could affect the dependent variable (if not controlled)
(if controlled, then in IV increases);
what are co-founding variables?
extraneous variable that hasn’t been controlled; reducing internal validity of results;
what’s the difference between cofounding variables and extraneous variables?
confounding variables are uncontrolled extraneous variables that may affect the DV (reducing IV), whereas extraneous variables are controlled so they don’t affect the results;