Which of the following sampling techniques poses the BIGGEST threat to the external validity of a...

Which of the following sampling techniques poses the BIGGEST threat to the external validity of a study?

Group of answer choices

simple random sampling

convenience sampling

stratified random sampling

proportional quota sampling

Expert Solution

Which of the following sampling techniques poses the BIGGEST threat to the external validity of a study?

Answer:

Answer is convenience sampling. It is because, a convenience sample is a type of non-probability sampling and in this the sample is taken as per the convenience of the investigators only. The sample is not representatives of the target population, the results of the study cannot be generalized to the entire population. This will make a low external validity of the study. External validity is the validity of generalizing or applying the results and conclusions of a scientific study outside the framework of that study. In this convenience sampling, there is no randomization and in this investigators are choosing samples based on their convenience. So this is really a threat to the external validity

About the remaining options:

Simple random sampling, Stratified random sampling and Proportional quota sampling are main types of probability sampling methods. In probability sampling every member in a target population have equal chance for being a part of the study. So this will never threat to the external validity

Nightingale answered 1 year ago

What are the threats to external validity? How could each threat affect you as a researcher?...

What are the threats to external validity? How could each threat affect you as a researcher? Come up with a research sample for each threat to external validity. What are some methods to increase external validity?

Explain the concepts of internal validity and external validity.

which one is more important internal validity or external validity and why reason for your choice

Distinguish between or among the following: a Internal validity and external validity. b Preexperimental design and...

Distinguish between or among the following: a Internal validity and external validity. b Preexperimental design and quasi-experimental design. c History and maturation. d Random sampling, randomization, and matching. e Environmental variables and extraneous variables.

What is the biggest threat the truffle industry is facing

a) What is the biggest threat the truffle industry is facing?

a) What is the biggest threat the truffle industry is facing?b) How should the industry respond to such a threat? Support your argument by using theories, principles

Can you think of an infectious disease that poses the threat of a pandemic and may...

Can you think of an infectious disease that poses the threat of a pandemic and may require isolation or quarantine efforts. What kind of social impact of isolation or quarantine should an outbreak or threat of widespread transmission occur. Would there be a question of moral responsibility or do other factors take precedence? What would you personally advise in regard to governments or healthcare organizations imposing mandatory immunization, isolation, or quarantine? What would you hope government officials, healthcare professionals, or...

Explain the concepts of internal validity and external validity and give examples. Thanks

Which poses the greatest threat: nuclear weapons, small arms proliferation, or chemical/biological weapons. Do current defense...

Which poses the greatest threat: nuclear weapons, small arms proliferation, or chemical/biological weapons. Do current defense systems protect against these threats? What needs to be done? Defend your answer.

A buyer group is powerful when , the buyer faces few switching costs, poses threat of...

A buyer group is powerful when , the buyer faces few switching costs, poses threat of backward integration, concentrated, products it purchases are undifferentiated and it earns low profits. In regards to it earns low profits what does this mean? what does it mean, when a buyer is powerful because it earns low profits? when the business earns low profits? please clarify

Question