Sampling, Data Collection and Measurement
Describe what sampling is and why it is necessary
Understand the distinction between probability and non-probability sampling
Describe the main types of sampling techniques and be able to identify them in the context of a research scenario.
Distinguish between dependent and independent research variables for measurement purposes
Recognise the ways that variables are measured in research, including the difference between continuous and categorical measures, and the other types of measures (i.e. binary, nominal, ordinal, interval, ratio levels, discrete and continuous)