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Sampling - Coggle Diagram
Sampling
Opportunity Sappling
recruit people who are most convenient to you
Strength
convenient
easy
low effort
Weakness
not representative of population
researcher bias
Volunteer Sampling
Involves using participants that put themselves forward to be a part of the sample. (self-selection)
Strength
minimal input
less time consuming
Weakness
volunteer bias
only attract people interested in it or outgoing people
Stratified Sampling
Produced by identifying the subgroups according to their frequency in the population.
Strength
avoids researcher bias
generalisation is possible
Weakness
does not reflect all the ways that people are different
Systematic Sampling
Obtained by selecting every nth person
Strength
avoids researcher bias
usually fairly representative
Weakness
requires close proximation of population
Random Sampling
each item in a population has equal chance of being chosen to be a part of the sample
Strength
no researcher bias since the researcher has no influence over who is selected
Weakness
difficultt
time consuming
participants may refuse
still may not be representative