Answered: If groups of participants are selected…

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

See similar textbooks

Related questions

Question

If groups of participants are selected to represent sub-groups in the population (e.g. such as selecting an entire class of Social Work students to be compared to a group of Sociology students), this is known as

Select one:

Cluster sampling.

Haphazard sampling.

Simple random sampling.

Opportunity sampling.

Expert Solution

Step 1

In cluster sampling, population is divided into groups which is called clusters. Then, clusters are randomly selected and all the units in the selected clusters are considered as samples.

In simple random sampling, each unit in the population has equal chance of being selected. Required number of samples are selected randomly. The common methods of simple random sampling are lottery method and random number generation.

In Haphazard sampling, samples are chosen in non-systematic way, but in a random way. It usually used in vox pop surveys.

In opportunity sampling, the samples that are available and willing to take part in the study are chosen.