Purchase Solution

Type of study

Not what you're looking for?

Ask Custom Question

In conducting his study of reactions to unemployment, Peter tries to select every 10th unemployed person in his country for a telephone interview. Peter had trouble identifying the entire population (no central lists were kept) and could not contact all the potential participants he could identify, because some of them did not have telephones. Which of the following is true about his study?

a. He used systematic random sampling
b. He used simple random sampling
c. His sample is representative of the populations
d. His sample is not a truly random sample

Purchase this Solution
Solution Summary

For one multiple choice question, this solution identifies the best solution and an explanation.

Solution Preview

Answer: d. His sample is not a truly random sample

It is not a random sample; a random sample is a sample arrived at by selecting ...

Purchase this Solution
Free BrainMass Quizzes
Measures of Central Tendency

Tests knowledge of the three main measures of central tendency, including some simple calculation questions.

Terms and Definitions for Statistics

This quiz covers basic terms and definitions of statistics.

Know Your Statistical Concepts

Each question is a choice-summary multiple choice question that presents you with a statistical concept and then 4 numbered statements. You must decide which (if any) of the numbered statements is/are true as they relate to the statistical concept.

Measures of Central Tendency

This quiz evaluates the students understanding of the measures of central tendency seen in statistics. This quiz is specifically designed to incorporate the measures of central tendency as they relate to psychological research.

View More Free Quizzes
Related BrainMass Solutions

  • Study designs and validity threats

    This type of quasi-experimental design is one of the most popular used in social research; however, the lack of randomization in this study type affects the internal validity of the study.

  • Statistical analysis of the article

    What type of statistics chart or graph was used and what type of study it is? If it was a table what type it is? What type of study was performed? did it have a central tendency to dispersion to measure?

  • Ratio, Interval, Ordinal, and Nominative Scales

    (This question is the heart of the study on customer satisfaction.) Type of Data: Nominal 9. How much are you willing to deposit in the coming year? Type of Data: Ratio (This question is the heart of the study on customer satisfaction.) 10.

  • Research Methodology - Complications Related to Type of Surgery

    499872 Research Methodology - Complications Related to Type of Surgery What research methodology would you use to look at hospital ABC's complications related to type of surgery?

  • Decision Errors: Alpha and Power Relationship

    Which type of error is worse, and why? d. Power and Effect Size:Suppose the effect size of your research study is very large. What does this tell you about your results?

  • New surgical intervention

    Type of study: Randomized Controlled Trial This type of study is used to compare the outcome of an intervention (surgical intervention) on a specific population (people with gallbladder disease).

  • Public Health Pancreatic Cancer Study

    Identify the type of study proposed and indicate its specific strengths and weaknesses. This type of study would be a retrospective cohort study.

  • Case study - health and sanitation-related supplies

    What are the key relationships in the case study? 7. What are the parameters of the case study 8. What model type or types could be used to solve the case study...i.e.

  • Target population and validity

    If you took that same study and broadened the age group with a mix of type 1 and type 2 Diabetics with different lifestyles, then your conclusion may differ and may lead to a generalization.

  • Testing of Hypothesis

    (Hint: This question is asking how you might modify your study in order to minimize Type I errors.) 3. What affect will a Type II Error have on your study?

View More Related Solutions