Exam 8: Sampling

A researcher is conducting a program evaluation of a clinic that treats people with depression.They ask each clinician to think about two or three clients that represents an "average" client in terms of symptoms, length of treatment, etc.What type of sampling is this?

A sample of convenience is an example of probability sampling.

In probability sampling, the goal is to choose a sample that is reflective of the larger population.

When evaluating the implementation of a medication algorithm program in mental health, you notice that the average times a client changes medication dosage is 2.However, you find that for a few clients, they have had medications changed 8 or more times.You would like to interview them regarding their experiences in the program.Looking for individuals to interview such as these who are extreme on a range of factors is known as what?

A major consideration in choosing a sample size is the confidence level chosen by the researcher.

Quota sampling:

Which of the following is an example of convenience sampling?

A convenience sample is one that selected randomly using a table of random numbers.

When conducting an evaluation of child welfare supervision practices in one state, the researchers surveyed those involved in an intervention designed to improve supervision.The supervisors in the sample represented what type of sample?

You are conducting a study on illegal immigrants and employment history.You cannot post ads designed to elicit a sample due to the fear of the population regarding deportation if discovered.You know an illegal immigrant and have gained their trust.They agree to talk to you anonymously.After the interview, you ask the person to refer another immigrant to you to interview, also anonymously.After that interview, you ask for another referral from that participant, and so on.This method of obtaining a sample is known as