Variables Flashcards
IV
What is manipulated/changed
e.g. different conditions
DV
Thing that is measured/will be affected by the changes
What is operationalisation
How we are going to measure our variables
We must define how we intend to measure the IV and DV
What is an example of operationalisation
After drinking 300ml of red bull, participants say more in the next 5 mins than participants who drank 300ml of water
What is counterbalancing
Technique to deal with order effects when using a repeated measures design
Sample divided in 1/2
1/2 does 2 conditions in one order
Other 1/2 completes conditions in reverse order
What is randomisation
Participants are assigned to condition A or B first by tossing a coin or picking out a name
What are extraneous variables
Lord knows
WELL HERE DE ANSWER
Anything that impacts the DV that is not the IV
What are confounding variables?
Anything other than the IV which has influenced your results which has not been accounted for before the experiment begins
ik what u probably thinking. extraneous and confounding r the exact same thing. frankly…i cried about it. so i googled it. here is the difference
Extraneous - any variable ur not investigating that can potentially affect the DV
Confounding - type of extraneous variable that not only affect DV, but also related to IV
ik what ur thinking again. this does not help <3 WELL IM SORRRY
What are situational variables
Type of extraneous variable found in the environment
Noise, light, time, location, temp, weather, etc
What are participant variables
Type of extraneous variable found in participants
Motivation levels, moods, skills, experience, fatigue, eyesight, etc
What are experimenter variables
Effects of experimenter’s expectations which are communicated intentionally/unintentionally (also known as investigator effects)
Experimenter might accidentally give you clues to ‘right’ answer in test by use of body language or voice tone
