Research Methods Flashcards
Steps of a scientific method
- Identify the area of the research and form a aim
- collect information
- Identify the research question and formulate hypothesis
- Design a research method to test hypothesis
- Collect and analysis the data
- Draw a conclusion -accept or reject the hypothesis
- Report findings
- Test conclusion
IV, DV, EV, CV
Independent variable is deliberately manipulated or varied in some way by the experimenter
Dependent variable the property that is measured in the research
Extraneous variable is a variable other than the IV that could cause changes in the of the DV
Controlled variable when the EV is removed from the experiment
How to form a hypothesis
Clear statement predicting how changes in the IV will affect the DV.
Population, sample, random and stratified sampling
The group about which we wish to draw conclusions is referred to as the population .
Smaller number of individuals from the population to participate in the research and represent the population is the sample.
Random sampling is the equal chance of being selected to participate in the research.
Stratified sampling by which the effect of a certain variable can be eliminated as a possible confound in an experiment
Difference between E and C group
The control group is the group that isn’t exposed to the IV and is use as a base line for the study whereas the experimental group is exposed to the IV. This is to show what changes happen
Repeated measures
Subject selection procedure where each participant is part of both the E-group and the C-group.
Matched participate
The researcher identifies a variable that is a likely confound and eliminates the effects of this variable from the experiment.
Participates are rank according to their sources and then will be allocated to the respective group.
Independent groups
Allocates participates to the E-group or the C-group at random
