WorksheetsUp to Sampling
Total questions: 9
Worksheet time: 6mins
True or false, random allocation is impossible in laboratory experiments.
True
False
Which of these is a key feature of a quasi experiment...
The study controls the independent variable
The study measures the independent variable
Participants can't be randomly allocated to a group
The study takes place in a natural environment
Oscar asks one group to drink a cup of coffee for 30 minutes before completing a recall task, the other group drinks nothing. The operationalised dependent variable is...
Drink (coffee or no coffee)
Coffee or no coffee
Recall task
% score on recall task
Denise gives her participants a word recall test in the morning and then the same participants an image recall test in the afternoon. Which experimental design has she used?
Lab experiment
Quasi experiment
Independent measures
Repeated measures
Paul wanted to test participants recall of words in a silent condition and in a music condition, using a matched pairs design, which variable is most appropriate to match them on?
Their GCSE scores
Their gender
Their favourite pet
The type of phone they have
Paul is going to run the music condition experiment and his friend is going to run the silent condition, what does Paul need to do to make sure all the participants have the same experience?
Use standardised instructions
Make sure the task has experimental realism
Counterbalance the tasks
Randomly allocate the participants
Reorder the following...
Write all the names on to separate bits of paper and put them into a hat
Pick out one name out of the hat and allocate it to condition 1.
Continue picking names out of the hat until you have 20 names for the first condition.
Repeat this with condition 2, picking another 20 names
Counterbalancing...
ensures the experiment is more realistic
reduces order effects
spreads order effects evenly over all groups
requires some participants to do condition A then B and the other half to do condition B then A.
A population is...
The participants you use in the experiment
Representative
Generalisable
The people you take your sample from
