Describe cluster sampling and identify some strengths and weaknesses of this technique
What will be an ideal response?
Cluster sampling involves randomly selecting preexisting clusters or groups instead of randomly selecting individuals. The main advantages are (1) it is easy to obtain a large sample quickly, and (2) because the participants are already organized in groups, it is often easy and convenient to test them as a group. For example, you could hand out questionnaires to an entire class instead of giving questionnaires to one person at a time. The main concern with cluster sampling is that the individuals within a cluster may not be independent. If the clusters consist of families, for example, it is likely that all of the family members share some common interests and common experiences.
You might also like to view...
Prolonged stress leads to suppression of the immune system. What might explain the evolution of such a seemingly flawed reaction?
A. There is no reasonable explanation for this. B. Susceptibility to disease would increase the likelihood of an early death. C. Immune suppression has no lasting effects on overall health. D. Such immune suppression might prevent the development of autoimmune illnesses.
The defining element of separation distress in prolonged grief disorder is that it a. interferes with daily activities
b. must involve a child-parent dyad. c. is based on disbelief about death. d. is an emotionless reaction.
Promoting intellectual vigor is considered an important developmental task of later adulthood because
a. intellectual vigor influences the capacity for introspection and adaptation to change. b. most older adults have dementia. c. most older adults have a neurotic personality and lose intellectual capacities. d. intellectual vigor leads to acceptance of one's life.
________ are the typical practitioners of Freudian therapy
a. Counseling psychologists b. Social workers c. Nurses d. Psychoanalysts e. Clinical psychologists