Please enable JavaScript.
Coggle requires JavaScript to display documents.
SAMPLING - Coggle Diagram
SAMPLING
RANDOM SAMPLE
-
STRENGTHS
Method is unbiased, likely to be representative (if sample is big enough)
-
-
SYSTEMATIC SAMPLE
-
STRENGTHS
AVOIDS EXPERIMENTER BIAS, MORE REPRESENTATIVE THAN A SIMPLE RANDOM SAMPLE
FOR A LIST OF THE POPULATION, EVERY NTH PERSON IS SELECTED TO BE IN THE SAMPLE
WEAKNESSES
NOT FULLY RANDOM, THERE MAY BE PATTERNS IN THE LIST THAT LEAD TO A BIASED SAMPLE
STRATIFIED SAMPLE
-
STRENGTHS
AVOIDS RESEARCHER BIAS, MORE REPRESENTATIVE THAN RANDOM SAMPLE
-
OPPORTUNITY SAMPLE
DEFINITION
-
WEAKNESSES
Biased, as drawn from a small part of target population (examples?)
-
-
-
