The extent to which a test or tool measures what is claims to measure
Quantitative data meaning
numerical data
What is ethnocentrism
Seeing the world from the pov of ones own cultural group
Definition of determinism
Suggests we lack control of our behaviour and are controlled by our genes or past experiences
Definition of free will
Human beings are entirely free to act as they chose and bear responsibility for the outcome of their behaviour
What is nature in the nature/nurture debate
sees genetic, biological factors as the explanation for thinking and behaviour
What is nurture in the nature/nurture debate
Sees behaviour is learned or acquired through experiences in the environment
What is the definition of useful research
research that adds to our knowledge and can be applied to real life situations
What does concurrent validity mean
A way to judge validity that compares measures of the same phenomenon in different ways at the same time to show that they produce similar results in the same circumstances
What does confounding variable mean
A factor in an experiment that confuses the results because it masks the effect of the IV on the DV as its influences is systematic
The study of cause and effect
Investigation of a casual relationship - search for a link between two variables so a change in one causes a change in the other
Definition of falsification
being able to demonstrate that something is not the case - that something is false
Definition of objectivity
Being able to take an unbiased external perspective without being influenced by ones own individual or personal viewpoint - consistent between researchers
Definition of competence
States that psychologists should maintain high standards, including advancing their knowledge, skills, training, education and experience.
Definition of demand characteristics
Features of an experiment setting that indicate to participants the aims of the study and so can influence their behaviour
Definition of one tailed hypothesis
A statement predicting the nature/direction of a relationship between variables
Definition of two tailed hypothesis
A statement predicting how one variable will be related to another - whether there will be a difference in the DV for> different levels of IV
What is event sampling
An observational data recording method in which categories of behaviours are recorded simultaneously and continuously (tallies on a checklist eg)
What are extraneous variables
Any factors that can affect the outcome of an investigation other than those being tested - their influence may be systematic or non systematic but both can threaten overall validity
Definition of face validity
A simple measure of validity indicating whether a measure appears to test what it claims
What is the fatigue effect
A situation in which participants’ performance declines because they have experienced an experimental task more than once
What does individual differences mean
Variation between people in terms of their behaviour =, cognitions or emotions - could lead to differences between their responses in experiments not caused by IV (could also be genetic or acquired in origin)
What is inter rater reliability
The extent to which two people coding a variable such as behaviours in an observation or qualitative responses in an interview will produce the same records when they are presented with the same raw data
Definition of matched participants design
Experimental design in which participants are arranged into groups - each group is similar in ways that are important to study