Sampling 0.0 / 5 ? Psychologyresearch methodsA2/A-levelAQA Created by: KatieCreated on: 10-09-19 17:05 what is a population a large group of individuals a researcher is interested in studying 1 of 17 what is a target population a subset of the general population 2 of 17 what is a sample a smaller group of a population 3 of 17 what does a sample need to be representative of the target population 4 of 17 why you can generalise 5 of 17 why do most samples have bias its impossible to represent the diverse nature of populations 6 of 17 what is a random sample memebers of a population ahve an equal chance of being selected 7 of 17 what are the 3 steps to getting a random sample 1. list memebers of target population 2. assign a number 3. lottery system 8 of 17 what is good about a random sample free from researcher bias 9 of 17 what limits a random sample time consuming. also, probbility doesn't necesarily mean everyone will be represented. also pp might drop out 10 of 17 what is a systematic sample every nth member of a population is selected 11 of 17 what does a systematic sample produce a sampling frame 12 of 17 what is a sampling frame list of people organised in some way 13 of 17 what is good about systematic sampling avoids researcher bias + is often very representative 14 of 17 what is a stratified sample a sample which relects the different groups/strata in a population 15 of 17 steps to work out a stratified sample 1. find the strata (%) 2. apply this to your sample 3 16 of 17 what is good/ bad about stratified sampling avoids researcher bias + representative of the population BUT complete representation is not possible 17 of 17
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