SOWK 3070 Lecture Notes - Lecture 6: Simple Random Sample, Sample Size Determination
26 Nov 2018
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What you learn: sampling, spss, going over individual assignment, group work. There are three important technical concepts in research. They are: reliability, validity, representativeness -------> generalizability sampling. Validity whether the findings are really" about what they appear to be about. conceptualization and operationalization. Reliability refers to the consistency and stability (of the measures you are using) operationalization (measurements) One does not and cannot measure the whole. We need an accurate reflection of the whole. The manner in which the sample is drawn determines to what extent we can generalize from the findings . Two types of sampling procedure: random sampling, non-random sampling. It means that people have the same chances of being selected for the sample. Three important concepts in relation to sampling for quantitative research: representativeness: homogeneity and randomization. What you know from the sample is the same as what you would know if you studied the entire population.
