Tricks and tips for everyone


When a probability sample is used the researcher is able to specify the probability that?

When a probability sample is used the researcher is able to specify the probability that?

Sampling falls into two broad categories. Probability sampling occurs when the researcher can specify the probability that each member of the population will be selected for the sample. Nonprobability sampling occurs when the researcher cannot specify these probabilities.

What is a disadvantage of the direct observational method of research?

What is a disadvantage of the direct observational method of research? The subjects’ behaviors may be influenced by the presence of an observer.

When evaluating a scientific research study which of the following questions can help in determining the strength of the evidence?

What four questions can you ask to help determine the strength of the evidence? Is the evidence quantifiable? Is it the correct population? Were there proper controls?

What should be the determining factor for a researcher to conduct qualitative research?

The determining factor for the researcher in selecting a qualitative research approach should be: The nature of the research question. Which of these terms is synonymous with paradigm?

Can we use Nonprobability sampling in quantitative research?

Non-probability sampling represents a valuable group of sampling techniques that can be used in research that follows qualitative, mixed methods, and even quantitative research designs.

What are limitations of direct observation?

Direct observation does not assess the higher-order levels of learning outcomes, and is often not adequate for a full assessment; oral questioning or other supplementary assessments may be required.

What challenges does participant observation have for the researcher and for those who are being observed?

The challenges to be faced include: access to the participants and obtaining informed consents, the role to be adopted during data collection by the researcher, establishing a trusting relationship with the participants (nurses, families and children), the effect that feeling observed may have on participants’ …

What happens if the data does not support your research question or hypothesis?

If the data consistently do not support the hypothesis, then CLEARLY, the hypothesis is NOT a reasonable explanation of what you are investigating. The hypothesis is rejected, and we search for a new interpretation, an new hypothesis that supports the experimental data.

How do researchers test models to make sure that they will be accurate?

Scientific models are tested by making predictions and checking them against real world data. Good scientists make models and then try to break them.

What should a researcher needs to avoid in qualitative research?

Ask general questions first, before moving to specific or sensitive questions. Leading questions and wording bias. Questions that lead or prompt the participants in the direction of probable outcomes may result in biased answers. Keep the questions simple and be careful to avoid words that could introduce bias.

Which sampling method is best for qualitative research?

Purposeful sampling is widely used in qualitative research for the identification and selection of information-rich cases related to the phenomenon of interest. Although there are several different purposeful sampling strategies, criterion sampling appears to be used most commonly in implementation research.

What is non-probability sampling?

Non-probability sampling is a more conducive and practical method for researchers deploying survey in the real world. Although statisticians prefer probability sampling because it yields data in the form of numbers.

Why do researchers use convenience sampling instead of probability sampling?

But, in some research, the population is too large to examine and consider the entire population. It is one of the reasons why researchers rely on convenience sampling, which is the most common non-probability sampling method, because of its speed, cost-effectiveness, and ease of availability of the sample. Consecutive sampling:

Which non-probability sampling techniques include an element of subjective judgement?

Therefore, the majority of non-probability sampling techniques include an element of subjective judgement. Non-probability sampling is the most helpful for exploratory stages of studies such as a pilot survey.

What is purposive sampling?

Purposive sampling is recruiting specific people because of the various characteristics and perspectives they bring to your sample. Imagine we were creating a focus group. A purposive sample might gather clinicians, patients, administrators, staff, and former patients together so they can talk as a group.

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