Question

Representative Sampling Technique:

A) Dr. James uses stratified random sampling, dividing the population into relevant subgroups (e.g., different types of mental disorders) and randomly selecting patients from each subgroup to ensure representation. This method helps ensure that the sample reflects the population's diversity.

B) Dr. James implements convenience sampling by selecting patients based on ease of access or proximity. This approach could lead to selection bias and may not represent the entire population accurately.

Answer 1

The student's question relates to the sampling technique used in research studies, specifically comparing stratified sampling, which ensures diverse population representation, with convenience sampling, which might lead to biased results.

Step-by-step explanation:

The subject of this question involves the sampling technique used in statistical studies. Sampling is the process of selecting a subset of individuals from a population to estimate characteristics of the whole population. Researchers use various sampling techniques to ensure that the sample reflects the population and to enhance the validity of their study. For example, stratified sampling divides the population into strata, and random samples are drawn from each stratum to ensure subgroups are adequately represented. Unlike stratified sampling, convenience sampling involves selecting samples based on ease or proximity, which can lead to selection bias and may not accurately represent the entire population.