AOS1 - Skills & Developmental Psychology Flashcards
Independent Variable
The variable you CHANGE
Dependant Variable
The variable you MEASURE
Hypothesis
The prediction of the effect of the IV on the DV
Controlled variables
these should be EVERYTHING else in the experiment- and they should be kept the same.
Extraneous variables
anything other than the IV that could have an effect on the DV
Confounding variables
variables that ALREADY had an impact on your DV
Population
The group you are studying
Sample
who actually takes place in your experiment.
Random sampling
each person in the whole population has an equal chance of being selected to be in the experiment
Stratified sampling
you manipulate the sample so that one unique characteristic is represented in your sample
Convenience sampling
People are grabbed to take part because they are available
Random allocation
People are divided up randomly
Objective data
neutral in attitude. e.g temperature
Subjective Data
Opinion based. e.g how much you like school
Qualitative Data
descriptive data
Quantitative data
numerical, numbers, scales. e.g scale of 1 to 5
Primary Data
you collect it yourself
Secondary Data
You get the data from others.
Between-subjects
half the group is allocated to the control group, the other to the experimental group, then their results are compared
Within-subjects
the whole group does both the control and the experimental test.
Mixed-design
the experiment has some elements of between and some of within (e.g. sometimes measuring multiple variables at once, or having multiple test conditions)
Can I Watch (a) DVD
What does this stand for?
Confidentiality, Informed consent, withdrawal rights, deception, voluntary participation, debriefing.
Justice
the research doesn’t disadvantage any one group, being fair
Integrity
the results are published regardless of what the outcome is/ whether it refutes their aim.