What is sampling theory? Describe it and provide examples to illustrate your definition. Discuss generalizability as it applies to nursing research.  What is sampling theory? Describe it and provide examples to illustrate your definition. Discuss generalizability as it applies to nursing research.  What is sampling theory? Describe it and provide examples to illustrate your definition. Discuss generalizability as it applies to nursing research.  What is sampling theory? Describe it and provide examples to illustrate your definition. Discuss generalizability as it applies to nursing research.  What is sampling theory? Describe it and provide examples to illustrate your definition. Discuss generalizability as it applies to nursing research.  What is sampling theory? Describe it and provide examples to illustrate your definition. Discuss generalizability as it applies to nursing research.  What is sampling theory? Describe it and provide examples to illustrate your definition. Discuss generalizability as it applies to nursing research.