Powerpoint lecture covering the following in a modern, concise format:
Specification Point 4.2.3.1 - Scientific Processes.
Aims: stating aims, the difference between aims and hypotheses.
Hypotheses: directional and non-directional.
Sampling: the difference between population and sample; sampling techniques including: random, systematic, stratified, opportunity and volunteer; implications of sampling techniques, including bias and generalisation.
Complete set of Chapter 7 Lectures are available.
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