Directions For each of the following research article excerp

Directions: For each of the following research article excerpts, (1) decide whether the sampling method presented is either a probability or nonprobability sampling method; (2) identify the specific sampling method used, which might include convenience, quota, purposive, network, or theoretical sampling for nonprobability samples or simple random, stratified random, cluster, or systematic sampling for probability samples; and (3) provide a rationale for the sampling method you selected. Some of the examples might include more than one sampling method to obtain the study sample.

3. Study excerpt: “A cross-sectional study was carried out that included 30 prevalent adult patients from a single PD [Peritoneal Dialysis] center. The sample was randomly selected from the outpatient clinic …” Vicente-Martinez, M., Martinez-Ramirez, L., Munoz, R., Avila, M., Ventura, M., Rodriguez, E., Amato, D., & Paniagua, R. (2004). Inflammation in patients on peritoneal dialysis is associated with increased extracellular fluid volume. Archives of Medical Research, 35 (3), 220–4. Excerpt from page 221.

4. Study excerpt: “Participants were recruited from one middle school and two high schools during general assemblies, homeroom classes, or in other required classes (e.g., physical education) so that no student enrolled in particular courses would be excluded … The three schools, located within a large, public school district in Houston, Texas, were selected so that (a) a wide range of socioeconomic strata, (b) a balance of males and females, and (c) a locally representative tri-ethnic sample could be attained.” Reyes, L. R., Meininger, J. C., Liehr, P., Chan, W., & Mueller, W. H. (2003). Anger in adolescents: Sex, Ethnicity, Age Differences, and Psychometric Properties. Nursing Research, 52 (1), 2–11. Excerpt from page 4.

Solution

3.

1.

It is a probability sampling method.

2.

It is convenience sampling.

3.

It is probabiility becuase patients are selected at random. It is convenience becuase due to convenience reseacher take sample only from a a single PD [Peritoneal Dialysis] center.

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4.

1.

It can be probability sampling becuase schools are selected at random.

2.

It is startified sampling.

3.

Here Houston, Texas, like a strata. And from this strata schools are selected at random.