A testable statement about the relationship between 2 variables (IV & DV)
1 of 34
IV
The variable the researcher changes
2 of 34
DV
The variable the researcher measures
3 of 34
Experiment
Method of research in which the IV & DV are controlled
4 of 34
Condition
An experiment is organised into 2 trials, the performance of participant are compared
5 of 34
Independent groups
Available people for the experiment. 1 group does 1 condition and other group does 2nd condition
6 of 34
Repeated measures
1 group of participants take part in both conditions
7 of 34
Matched pairs
Available people are tested before experiment and matched into pairs for qualities one member takes part in one condition and other in remaining condition. Identical twins are perfect for this
8 of 34
+ & - of independent groups
+ no order effects . Same material can be used. Can't work out aim of experiment. . - different people in 2 conditions so different results. - need more people
9 of 34
+&- of repeated measures
+ people in both conditions are the same so no participant variables, only need 10 people. - or elder effects , may work out aim of the study
10 of 34
Matched pairs + & -
+ participant variables reduced no order effects same material used for both. - matching is difficult, time consuming and not always successful . Some participants present
11 of 34
Standardised procedures
A set order of carrying out a study that applied to all participants when necessary
12 of 34
Random allocation
A way of putting participants in conditions randomly
13 of 34
Counterbalancing
A procedure of evening out the order in which participants complete both conditions
14 of 34
Extraneous variable
Variable that is not the IV but might affect the DV
15 of 34
Briefing
Encouraging a person to participate in a study
16 of 34
Standardised instructions
Instructions of what happens in the experiment
17 of 34
Debriefing
Explains in detail
18 of 34
Randomisation
Using chance to produce an order for procedure
19 of 34
Ecological validity
The experiment can apply to real life behaviour. An accurate account of behaviour in the real world
20 of 34
Sample
A small group of participants
21 of 34
Target population
The large group of people the researcher wants to study
22 of 34
Representative
The sample of participants is made up of people wi the same characteristics as the target population
23 of 34
eneralised
The results from the sample can be said to apply to the target population
24 of 34
Random sample
Every member has equal chance of being selected for a study
25 of 34
Opportunity sample
Members of the target population are available and willing to take part
26 of 34
Systematic sample
Every nth number of population is selected for sample
27 of 34
Stratified sample
Different sub groups in target population are identified
28 of 34
Raw data
Scores collected in a study that haven't been analysed
29 of 34
Mean
Adding up all values and divided by number there are
30 of 34
Mode
Most frequently occurring number
31 of 34
Median
Middle value
32 of 34
Range
Lowest value take away from highest value
33 of 34
Anomalous result
An extremely high or low score that doesn't match the other scores
Comments
Report