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Flashcards in Introduction Deck (14):

What is an IV?

An IV is the independent variable- is the variable which is deliberately manipulates by the experimenter


What is a DV?

A DV is the dependent variable and is what is being measured-it depends on the IV.


What is an EV?

An extraneous variable is a variable other that the IV that has an effect on the Value of The DV.


What is a CV?

A confounding variable is a variable other that the IV that has a systematic effect on the DV


How to write a hypothesis?

Make an educated guess in third person, past tense


What is the population?

The population is the group we desire to draw information from


What is a sample?

Is a smaller group of people from the population to participate in the experiment. Used to represent the population


What is random sampling?

Is when every me,bee of the population has an equal chance of selection


What is a stratified sample?

Is when a population is divided in to categories, then are selected at random in proportion equal to population


Difference between Experimental group and control group

The members of e group are exposed to the IV, whereas the c group don't. C group is used as a bases for comparison.


What is repeated measures?

Repeated measures is when each person is apart of the e group and c group.
A-participant variables eliminated
D- practice may perform enter second time
May due worse due to boredom of fatigue


What is matched participant?

To make the average of each group equal, but not the same people. Ranking to eliminates CV
D time consuming


What is the independent group design?

Participants are allocated randomly to e group or C group. Used for cross section design
A- Can be done all at once
D- must have a large number of participants to ensure same spread in population


Name and briefly describe the steps of the scientific research method

- Identify the area of research and form a aim
- collect information
- Identify research question and form a hypothesis
- design a research method to from hypothesis
- collect and analyse data
- draw a conclusion
-report findings
-test conclusion