Research Methods Key Words Flashcards
Ecological validity
The degree to which a research finding an be generalised to another setting
Population validity
The degree to which a research finding can be generalised to other groups of people
Historical validity
The degree to which a research finding can be generalised over time
Control
Refers to the extent to which any variable is held constant or regulated by a researcher
Mundane realism
Refers to how a study mirrors the real world. The stimulated task environment is realistic to the degree to which experiences encountered in the environment will occur in the real world
Confidentiality
A participants right to have personal information protected
Deception
Where a participant is not told the true aims of a study and this cannot give truly informed consent
Informed consent
Participants have the right to be given comprehensive information concerning the nature and purpose of the research and their role in it, in order that they can make an informed decision about whether to participate
Privacy
A persons right to control the flow of information about themselves
Protection from harm
During a research study, participants should not experience negative physical or psychological effects, such as physical injury, low self esteem or embarrassment
Right to withdraw
Participants should have the right to withdraw from participating in a study if they are uncomfortable in any way, and should also have the right to refuse permission for the researcher to use any data they produced
Ethics committee
A group of people within a research institution that just approve a study before it begins
Ethical guidelines
Concrete, quasi-legal documents that help to guide conduct within psychology by establishing principles for standard practise and competence
Presumptive consent
A method if dealing with a lack of informed consent or deception, by asking a group of people who are similar to the participants whether they would agree to take part in the study. If this group consents it is presumed the real participants would have also agreed
Directional hypothesis
States the direction of the predicted difference between two conditions or two groups of participants
Non directional hypothesis
Predicts simply that there will be a difference between two conditions/groups without stating the direction of the difference
Pilot study
A small scale trail run of a study to test any aspects of the design with a view to making improvements
Confederate
An individual in a study who is not a real participant and has been instructed how to behave by the investigator
Counterbalancing
An experimental technique used to overcome the order effects. It ensures that each condition is tested first or second in equal amounts
Experimental design
A set of procedures used to control the influence of factors such as participant variables in an experiment
Independent groups
Participants are allocated to a group representing an experimental condition, they take part in only this condition
Matched pairs
Pairs of participants are matched in terms of key variables such as age or IQ, one member of each pair is placed in the experimental group and the other is placed in the control group
Order effect
An extraneous variable arising from the order in which conditions are presented ( in repeated measures design)
Random allocation
Allocating participants to experimental groups or conditions using random techniques
Repeated measures
Each participant takes part in every condition
Single blind
A type of research design in which the participant is not aware if the research aims or if which condition of the experiment they are receiving
Demand characteristics
A cue that makes participants aware of what the researcher expects to find, or how participants are expected to behave. Can change the outcome of the study as participants are changing their behaviour
Double blind
Neither the participant not the experimenter are aware of the important details and this have no expectations
Experimental realism
The extent to which participants become involved in an experiment and become less influenced by cues about how to behave
Hawthorne effect
The tendency for participants to alter their behaviour merely as a result of knowing that they are being observed
Investigator bias
The effect that an investigators expectations have on the participants and thus on the result of a research study
Investigator effect
Anything that the investigator does that has an effect on the participants performance in a study, other than what was intended
Social desirability bias
A tendency for respondents to answer questions in a way that will present them in a better light
Mean
An average, add everything together and divide by the amount
Measure of central tendency
A descriptive statistic that provides information about a ‘typical’ response for a data set
Measure if dispersion
A descriptive statistic that provides informations about how spread out a set of scores is
Median
The middle result
Mode
The most frequently recurring score in a data set
Qualitative
Data that expresses the quality of things, words, descriptions ect. Can be turned into quantitative data by placing them into categories
Quantitative
Data represented in numbers or quantities