A sample taken from a group of people with an equal chance of being picked
2 of 27
Volunteer Sample
A sample that consists of people whom have agreed on their own part to take part
3 of 27
Hypothesis
Testable statement
4 of 27
Directional Hypothesis
An alternative hypothesis that predicts the direction of any differences in an investigation
5 of 27
Non-Directional Hypothesis
Alternative hypothesis that does not predict the direction of any differences
6 of 27
Case study
In-depth study of an idividual
7 of 27
Correlation
Term that refers to the extent to which two values on two different variables co-vary
8 of 27
Observational
Where behavior is without the researcher being detected
9 of 27
Interview
Self-report technique involving face-to-face encounter where one person asks another person a series of questions
10 of 27
Lab experiment
Carried out in a lab, where researcher has a high level of control over the IV to control cofounding variables
11 of 27
Field experiment
Experiment carried out in real life settings e.g. school
12 of 27
Natural experiment
Reflects naturally occurring differences in the IV
13 of 27
IV
Variable which the researcher manipulates in order to investigate a change in the 2nd variable
14 of 27
DV
Variable affected by the IV and is something you measure
15 of 27
Independent Measures
Places different participants under the different conditions
16 of 27
Repeated Measures
Exposes each participant to same conditions, used as own control
17 of 27
Matched-Pairs
Each group of participants carefully matched on all variables considered relevant to each experiment
18 of 27
Pilot study
Pre-experiment to identify any problems/changes that need to made to the study
19 of 27
Qualitative data
information collected which is non-numerical data, narrative form such as transcript
20 of 27
Quantitative data
information collected and quantified into numerical data e.g. speed of someones response in miliseconds
21 of 27
Reliabiltiy
Term which means dependability or consistency. If findings are replicated consistently then the outcome is said to be reliable
22 of 27
Validity
The extent to which an research instrument measures what it is set out to measure
23 of 27
Internal Validity
Measure of whether the experimental procedures actually worked and the results are genuine
24 of 27
External Validity
Extent to which findings can be generalised to other settings
25 of 27
Extraneous Validity
Anything other than the IV that could affect the results of the DV
26 of 27
Counterbalancing
Technique used in repeated measures to overcome impact of order effects. Involves ensuring each condition is equally likely to happen in a particular order.
27 of 27
Other cards in this set
Card 2
Front
A sample taken from a group of people with an equal chance of being picked
Back
Random Sample
Card 3
Front
A sample that consists of people whom have agreed on their own part to take part
Back
Card 4
Front
Testable statement
Back
Card 5
Front
An alternative hypothesis that predicts the direction of any differences in an investigation
Comments
No comments have yet been made