Author Question: Which is the sampling design that is an example of a probability sampling method? a. Purposive ... (Read 87 times)

TVarnum

  • Hero Member
  • *****
  • Posts: 548
Which is the sampling design that is an example of a probability sampling method?
 
  a. Purposive
  b. Snowball
  c. Stratified random
  d. Quota

Question 2

A researcher attempted to recruit all 150 of the patients seen in the emergency department in a three-month period for diverticulitis, but only 120 consented to participate. What is the refusal rate?
 
  a. 100
  b. 80
  c. 20
  d. 0



Ahernandez18

  • Sr. Member
  • ****
  • Posts: 361
Answer to Question 1

ANS: D
There are several types of nonprobability (nonrandom) sampling designs. Each addresses a different research need. The five nonprobability sampling designs described in this textbook are (1) convenience sampling, (2) quota sampling, (3) purposive or purposeful sampling, (4) network or snowball sampling, and (5) theoretical sampling. These sampling methods are applied in both quantitative and qualitative research. However, convenience sampling and quota sampling are applied more often in quantitative, outcomes, and intervention research than in qualitative studies and are discussed in this section.

Answer to Question 2

ANS: C
A refusal rate is the number and percentage of subjects who declined to participate in the study. High refusal rates to participate in a study have been linked to individuals with serious physical and emotional illnesses, low socioeconomic status, and weak social networks. The higher the refusal rate, the less the sample is representative of the target population. The refusal rate is calculated by dividing the number of potential subjects refusing to participate by the number of potential subjects meeting sampling criteria and multiplying the results by 100.



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
 

Did you know?

Since 1988, the CDC has reported a 99% reduction in bacterial meningitis caused by Haemophilus influenzae, due to the introduction of the vaccine against it.

Did you know?

Most women experience menopause in their 50s. However, in 1994, an Italian woman gave birth to a baby boy when she was 61 years old.

Did you know?

Although puberty usually occurs in the early teenage years, the world's youngest parents were two Chinese children who had their first baby when they were 8 and 9 years of age.

Did you know?

Addicts to opiates often avoid treatment because they are afraid of withdrawal. Though unpleasant, with proper management, withdrawal is rarely fatal and passes relatively quickly.

Did you know?

The cure for trichomoniasis is easy as long as the patient does not drink alcoholic beverages for 24 hours. Just a single dose of medication is needed to rid the body of the disease. However, without proper precautions, an individual may contract the disease repeatedly. In fact, most people develop trichomoniasis again within three months of their last treatment.

For a complete list of videos, visit our video library