Monday, January 16, 2012

vu experts - Re: [ vuZs.net ] GDB SOLUTION REQUIRED urgentlyyyyyyyyyyyyyyyyyy

nowball Sampling

Snowball sampling (also called

network, chain referral, or reputational sampling) is a method for

identifying and sampling (or selecting) cases in the network. It is based on an analogy to a snowball,

which begins small but becomes larger as it is rolled on wet snow and picks up additional snow. It

begins with one or a few people or cases and spreads out on the basis of links to thee initial cases.

This design has been found quite useful where respondents are difficult to identify and are best located

through referral networks. In the initial stage of snowball sampling, individuals are discovered and may

or may not be selected through probability methods. This group is then used to locate others who

possess similar characteristics and who, in turn, identify others. The "snowball" gather subjects as it

rolls along.

For example, a researcher examines friendship networks among teenagers in a community. He or she

begins with three teenagers who do not know each other. Each teen names four close friends. The

researcher then goes to the four friends and asks each to name four close friends, then goes to those four

and does the same thing again, and so forth. Before long, a large number of people are involved. Each

person in the sample is directly or indirectly tied to the original teenagers, and several people may have

named the same person. The researcher eventually stops, either because no new names are given,

indicating a closed network, or because the network is so large that it is at thee limit of what he or she

can study.


On Mon, Jan 16, 2012 at 5:31 PM, mc090405582 Imtaiz Ahmad <mc090405582@vu.edu.pk> wrote:
Dear All
                     kindly  send me GDB solution of the following Subjects.God bless u all for helping me.

STA630      
Discussion Question Chamber of com...Jan 12, 2012
      Jan 16, 2012
6 Hours left.

ECO401  The case: If we ask from Pakistanis about their...Jan 13, 2012 Jan 17, 2012
MGT301 Discussion Question: &amp;nbsp; Telecom sector ...Jan 14, 2012 Jan 18, 2012
MGT613  Discussion Question: &amp;nbsp; Gaining...Jan 14, 2012 Jan 18, 2012
MKT501 Topics covered: &amp;nbsp; Critique of Sell...Jan 17, 2012 Jan 19, 2012


--
Regards
Imtiaz Ahmad Awan
VU MBA student
03025706184


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