HESI Nursing Research II
HESI Nursing Research II ( 54 Questions)
In this statement describing the methodology of a research study, how was the snowball sample obtained? "From 2000 to 2004, a sample of 30 nonhospitalized women, self-identified as having postpartum depression, was recruited by network and "snowball sampling" to discuss their beliefs about postpartum depression.".
The description of snowball sampling does not involve stratified random sampling based on whether women reported having postpartum depression. Snowball sampling relies on initial participants referring or recruiting additional participants who meet the criteria. Stratified sampling is a different sampling method.
This is the correct answer. Snowball sampling involves participants who have experienced postpartum depression volunteering and referring others. It relies on a chain-referral process where participants recruit additional participants, which is typical in qualitative research to identify individuals with specific experiences.
While volunteers did agree to participate, the key aspect of snowball sampling is the referral process, where existing participants refer others who meet the criteria. It is not based solely on volunteers learning about others being interviewed.
Listing postpartum clients sequentially and selecting every 4th client does not describe snowball sampling. This approach is more characteristic of systematic or stratified sampling methods, where participants are selected based on predetermined criteria or a specific sampling interval.
Choice A rationale:
The description of snowball sampling does not involve stratified random sampling based on whether women reported having postpartum depression. Snowball sampling relies on initial participants referring or recruiting additional participants who meet the criteria. Stratified sampling is a different sampling method.
Choice B rationale:
This is the correct answer. Snowball sampling involves participants who have experienced postpartum depression volunteering and referring others. It relies on a chain-referral process where participants recruit additional participants, which is typical in qualitative research to identify individuals with specific experiences.
Choice C rationale:
While volunteers did agree to participate, the key aspect of snowball sampling is the referral process, where existing participants refer others who meet the criteria. It is not based solely on volunteers learning about others being interviewed.
Choice D rationale:
Listing postpartum clients sequentially and selecting every 4th client does not describe snowball sampling. This approach is more characteristic of systematic or stratified sampling methods, where participants are selected based on predetermined criteria or a specific sampling interval.