Cathy conducted a survey on the relationship between substance abuse and average annual income of an individual. She divided the annual incomes into three ranges, labelled them as low income, middle income, and high income, and found the groups to be present in the target population in the ratio of 4:5:1 . Cathy needed a sample of 100 participants. She selected 40, 50, and 10 people from each income group in a manner such that each individual in a subgroup had equal chance of getting selected into the respective subsample. Which of the following sampling techniques has Cathy used in this scenario?
a. Stratified random sampling
b. Convenience sampling
c. Cluster sampling
d. Quota sampling
Question 2
Which of the following statements is TRUE, when viewing the family as a system?
a. One single person in the family orchestrates the interactional patterns
b. All behavior makes sense in context
c. One single person can be blamed for family distress
d. Personal characteristic are independent of the system
Structure of the ovary and uterine (fallopian) tube. Figure illustrates stages of ovum development a
Relationship of the conduction system to an ECG strip.
Average Global Temperature Rise over the Past Century
Prevalence of drug use in the United States. Figures are based on a survey of people 12 years of age ...
Average household size
A patient is talking to the nurse about her husband’s abuse and attempt to strangle her. She ...