Hello, Everyone.\n\nI need your help, I have a question regarding quota, stratified\nsampling and area sampling. so it is not directly SPSS related\nIf a quota has been picked including key variables such as region,age\nand gender. Then the researcher went to each region and start\nselecting households randomly in that region and filling\nquestionnaires with individuals to fill the quota.\n\nThe sampling method here is still quota sampling? or is it a mixed of\nstratified and quota sampling?\n\n\nAlso, since quota sampling is regarded as stratified sampling with a\nmore or less non-random selection of units within strata, sampling\nerror formulas cannot be applied to the results of quota samples. And\nI gather we should not apply the stratified random mean calculations\nto results obtained through quota sampling, or can we?\n\nHow do we weight the results when there is now an element of\nrandomness in the quota sampling? That is to say, the selection of\nrespondents is done randomly until the pre-set quotas are reached.\n\n\nI'd love to hear what you think please.