A-Level Psychology Key Terms Flashcards
Research methods
Techniques used to gather data on the mind and behaviour.
Experiments
Investigation into the effects of an independent variable on a dependant variable.
-includes lab, field, natural and quasi.
Dependant variable
Is measured
Independent variable
Is changed or manipulate
Extraneous variable
May affect the dependent variable if not controlled (so becoming confounding variables).
Experimental designs
Refers to how the participants in an experiment have been organised.
-includes independent groups, repeated measures and matched pairs.
Questionnaires
Written questionnaires are used to allow participants to ‘self report’ on their beliefs and attitudes. These can be open or closed.
Hypothesis
Testable statements of predicted outcomes, where null predicts no significant effects, and alternative predicts a significant effect.
Directional offers a prediction of a specific effect, and non-directional predicts an effect yet is more open.
Interviews
Questions that are asked in person or over the phone. These can be more or less structured.
Observations
Participant behaviour that is observed first-handed.
-includes naturalistic or controlled, covert or overt, participant or non-participant.
Case studies
In depth investigation into one person or small group.
Correlations
The relationship between two co-variables that is measured.
Target population
The group of people an investigation aims to investigate, and to which findings will be applied to.
Content analysis
Analysis of qualitative data using coding, to sport trends. This can be extended through conducting a thematic analysis.
Ethical issues
Issues relating to the protection of participants from harm.
-included informed consent, deception, right to withdraw, confidentiality and protection from harm.
-can be dealt with through debriefs, gaining retrospective consent, offering counselling or terminating research if harm is caused.
Samples
Selection of the target population directly studied in an investigation. They can be collected randomly, systematically, voluntarily, asking those available at the time or stratified.
Pilot studies
Small-scale prototypes of a study, done to see if there are any problems with the planned investigation which can be improved.
Primary data
Gathered first-hand by the researcher conducting the investigation.
Secondary data
Data analysed in an investigation that was previously gathered by another researcher.
Meta-analysis
A process in which a number of studies are identified which have investigated the same aims or hypothesis, to pool their results and produce a joint conclusion.
Qualitative data
Descriptive information using pictures or words.
Quantitative data
Numerical or statistical
-include nominal, ordinal and interval data
Ordinal data
Ordered data with unequal intervals eg. Attitude rankings
Nominal data
Data in distinct categories eg. Gender or eye colour
Interval data
Ordered data with equal intervals between each value eg. Temperature or time
Data analysis
Process of analysing quantitative through measures of central tendency or dispersion, tests of statistical significance, and presenting them in appropriate graphical formats.
Subjectivity
Explanation or analysis which is based on personal opinions or feelings
Objectivity
Not based on opinion or interpretation, so is more scientific and factual,