psychology - sampling 0.0 / 5 ? PsychologyResearch methods and techniquesA2/A-levelAQA Created by: MollySmith2002Created on: 13-10-19 17:30 describe random sampling equal chance of being picked, list of all ppts , lottery method 1 of 10 describe volunteer sampling choose to be part of study, self select 2 of 10 describe stratified sampling sample reflects proportion of people in sub group, randomly select from sub group 3 of 10 describe oppurtunity sampling pick whoever is around at the time 4 of 10 describe systematic sampling every nth person of population 5 of 10 advantage and disadvantage of random sample adv=unbiased, equal chance disadv= time consuming 6 of 10 advantage and disadvantage of volunteer sample adv=quick and convenient disadv=biased, unrepresentative 7 of 10 advantage and disadvantage of stratified sample adv=unbiased, representative disadv=time consuming 8 of 10 advantage and disadvantage of opportunity sample adv=informed consent, quick disadv=unrepresentative 9 of 10 advantage and disadvantage of systematic sample adv=avoids bias, representative disadv=not equal chance 10 of 10
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