Non probability sampling, Other Management

Non Probability Sampling:

Convenient sampling or accidental sampling entails the use of the most conveniently available people  as  subjects  in  the  study. Quota sampling arises from researcher's desired quota  or  proportion for  same population variable  of interest.  It  is  similar  to  stratified random sampling  in  that  the  first  step involves dividing population into homogenous strata and selecting same elements  from each of these strata. 

i)  Purposive or Judgmental Sampling involves "hand-picking"  of  subjects. The researcher might decide to purposely select widest possible variety  of respondents or might  choose  subjects who  are judged to be typical  of population  in question or knowledgeable about the issues under study. 

Purposive Sampling  is non-probability sampling  in which  the  researcher attempts to identify typical cases whatever is being studied. For example,  if you  are  studying cardiac patients, findings  "the  typical cardiac patient" would be one approach. If the  researcher is interested in  the play patterns of  four year  old village boys, then studying a small sample of "typical" four year olds attending  the "Anganwadi"  or pre-nursery schools, would comprise the purposive study sample. Obviously, this approach  is not  often a very dependable  one, for what is  "typical"  is often a very subjective opinion. Sampling  in  this subjective manner provides  no objective method for assessing  the  typicalness  of the  selected subjects. Purposive sampling should be avoided, particularly,  if  the population is' heterogeneous, and  if  they are unavoidable,  the data  analysis and interpetation  should be done carefully.  

Posted Date: 11/2/2012 8:56:52 AM | Location : United States







Related Discussions:- Non probability sampling, Assignment Help, Ask Question on Non probability sampling, Get Answer, Expert's Help, Non probability sampling Discussions

Write discussion on Non probability sampling
Your posts are moderated
Related Questions
QUESTION 1 (a) Based on the Strategic Implementation Framework, discuss the various factors that should be considered when implementing a strategic plan. (b) What are the ma

Types and Structure: Types and Structure The  design of a useful  schedule normally  involved extensive planning, consultation with  colleagues and experts, pretesting and rev

Question 1: (a) Define the term "value". (b) Distinguish between functional value and emotional value. Illustrate by using relevant examples. (c) How can functional an

QUESTION 1 Explain each of the following concepts- (a) PESTEL analysis of the macro-environment (b) Porter's five forces (c) Value chain analysis QUESTION 2 Th

managing construction to build 15,000 sq meters office you budget is $10 per sq meter timeline is to construct 3,000 sq meters per day you finish 7,000 sq meters of parking lot yo

Question 1 Write break down or corrective or remedial maintenance. Question 2 Explain the planning principles in maintenance management, Question 3 The principles used i

ordinary share capital

The General Condition of Contract provides clauses to establish the rights and liabilities of the Purchaser and the Supplier in connection with the execution of a procurement contr

FUNCTIONS OF DOCUMENTATION AND  INFORMATION CENTRES: In general, a documentation or an, information centre brings to the attention of specialist users the current as well as r

Question 1: (i) Explain why it is not normally advisable to use the cost plus method in the pricing of rooms for first class hotels. (ii) Mention and explain four types of