sample selecting
TRANSCRIPT
Dolly Ramos G
After identifying the general problem What info
How to obtain
You need to select the unit of anaylisis (sample) Research and studies have numerous
however
the researcher needs to know exactly
• What to observe•Where to observe
•Whom to ask
•short “sampling”
PS=how many and how often = QN studiesNPS or purposive /purposeful= QL studies
“are logic as long as the field were experts mainly answer QL problems”
insight
Discover
understandto learn the most
In a Medical case = not any consultant is not called to provide an opinion but those who have the experience on that specific cases .
Purposive or purposeful samplingLie in selecting information rich-case (IRC)
those samples from which we can learn a great deal about issues of central importance to the purpose of the research
Fits the profileGraduate ss
Rare attribute
A prof athlete
Charact of interest
Wides range of chrac
Ongoing/aheadEmerging theory
Referring others
Name others
Ow
n b
enef
itFi
rend
or c
lass
mat
e
Get together with your peer or peers Write down a paragraph in which it states the sample the type of sampling you will
be using and how it applies to your studyType of samplingNumber of participantsWhere are they fromAge averageGenderWhy this sampling
There is no answer
It depends on: Questions being ask Data being gathered The analysis in the process The source you have to support the study
•Lincoln & Guba: Recommend sampling until a point of saturation or redundancy is reached (no new info)•Random sampling give validity to the study•Patton: specifically minimum size based reasonable coverage•Sample chosen in relevance to the research problem