Chapter 1 - Research Methods Flashcards
Define Behaviour
Any externally expressed action made by a living person that can be directly observed.
What are the 7 steps in Psychological Research?
1 - Identifying the Research Problem 2 - Constructing the Research Hypothesis 3 - Designing the Method 4 - Collecting the Data 5 - Analysing the Data 6 - Interpreting the Data 7 - Reporting of the Research Findings
Define Research Method
A particular way of conducting a research study to collect accurate and reliable information about behaviour and mental processes.
Define Experiment
Used to test a cause-effect relationship between variables under controlled conditions.
Define Variable
Any factor that can change in amount or type over time.
Define Independent Variable
The variable that is systematically manipulated, changed or varied in some way by the researcher in order to assess its effect on the participants’ responses.
Define Dependent Variable
Shows any effects of the independent variable.
What’s the difference between the experimental and control conditions?
In the experimental condition the independent variable is present, while in the control condition it is not.
Define Operationalised
Stated in terms of the procedures that will be used to manipulate and measure them in the experiment.
Define Hypothesis
A tentative and testable prediction of the relationship between two or more events or characteristics.
Define Operational Hypothesis
A research hypothesis that states how the variables being studied will be observed, manipulated and measured.
Define Extraneous Variable
Any variable other that the IV that can cause a change in the DV and therefore affect the results of the experiment in an unwanted way.
Define Confounding Variable
A variable other that the IV that has had an unwanted affect on the DV, making it impossible to determine which of the variables has produced the change in the DV.
Define Mental Processes
Refers to a person’s thoughts and feelings, which are personal, or subjective, and cannot be directly observed.
Define Placebo
An inactive substance or treatment, which substitutes for the real substance or treatment.
Define Placebo Effect
Occurs when there is a change in the response of participants due to their belief that they are receiving some kind of experimental treatment and they respond in accordance with that belief, rather then to the effect of the IV.
Define Participant Variables
Differences in personal characteristics and experiences of the individual participants in an experiment.
Define Experimenter Effect
Occurs when there is change in a participant’s due to the researcher’s expectations, biases or actions, rather than to the effect of the IV.
Define Order Effect
Occurs when performance, as measured by the DV, is influenced by the specific order in which the conditions, treatments or tasks are presented rather than the IV.
What is another possible extraneous or confounding variable?
Non-Standardised Procedures
Define Participants
The people used in an experiment or any other kind of research study.
Define Sampling
The process of selecting participants for a research study.
Define Sample
A group that is subset or portion of a larger group chosen to be studied for research purposes.
Define Population
Used in psychological research to describe the larger group from which a sample is drawn.
Define Convenience Sampling
Involves selecting participants who are readily available without any attempt to make the sample representative of the population.
Define Random Sampling
A sampling procedure that ensures every member of the population of research interest has an equal chance of being selected as a participant for a study.