Research Design Concepts Survey
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Questions and Answers

What is the concept being studied that usually indicates the influence or cause?

Independent variable

What is the extent to which a study measures what it is supposed to measure?

Validity

What type of research design is used to find 'cause-effect' relationships?

Experimental design

What is the score that occurs the most in a dataset?

<p>Mode</p> Signup and view all the answers

What is the basis for the qualitative research approach?

<p>Premises</p> Signup and view all the answers

What is the arithmetic average of a set of values called?

<p>Mean</p> Signup and view all the answers

What is the difference between basic research and applied research?

<p>Basic research is conducted to generate knowledge and test theories, while applied research aims to influence or improve practice.</p> Signup and view all the answers

Define the term 'Control group' in an experiment.

<p>The control group is the group in an experiment that does not receive the treatment or intervention being studied.</p> Signup and view all the answers

What is the dependent variable in a research study?

<p>The dependent variable is the variable that is being measured or tested in an experiment; it is the outcome variable affected by the independent variable.</p> Signup and view all the answers

Explain the term 'Null Hypothesis'.

<p>The null hypothesis states that there is no significant difference or relationship between the variables being studied.</p> Signup and view all the answers

What is the role of the Independent variable in an experiment?

<p>The independent variable is the variable that is manipulated or controlled by the researcher; it is the variable that is hypothesized to cause an effect on the dependent variable.</p> Signup and view all the answers

Define 'Internal validity' in a research study.

<p>Internal validity refers to the extent to which a study is free from confounding variables and accurately shows a causal relationship between the independent and dependent variables.</p> Signup and view all the answers

What is the purpose of qualitative research?

<p>Trying to verify or generate descriptive theory that is grounded in the data gleaned from the investigation (naturalistic).</p> Signup and view all the answers

Define random sample.

<p>Everybody has the same chance of being assigned to any group.</p> Signup and view all the answers

Who is the principle investigator in a research study?

<p>The person who oversees a research population, the target group under investigation.</p> Signup and view all the answers

What is the purpose of quantitative research?

<p>To answer a specific research question by showing statistical evidence that the data may be addressed in a particular way (experimental).</p> Signup and view all the answers

What is a questionnaire in the context of research?

<p>Structured sets of questions on specified subjects that are used to gather information.</p> Signup and view all the answers

What is the role of research design in a study?

<p>The method for finding out what the researcher wants to know, experiment, and correlate.</p> Signup and view all the answers

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