Examlex
Drum rotation adds ____________ to the brake shoes as they contact the drums. This is called self-energizing action.
Network Sampling
A method of sample selection used in research that involves choosing participants through networks or connections within a specific population.
Stratified Random Sampling
Sampling in which randomly selected units from small or minority populations are forced into the sample to ensure that they are represented in proportion to their presence in the population.
Purposive Sampling
A non-random sampling technique in which the researcher selects participants based on specific characteristics or qualities.
Convenience Sampling
A sampling technique where participants are selected based on their availability or ease of access, rather than at random.
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