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