Final Study Guide
Extraneous Variable
A factor that could affect the relationship between the variables but that is not included or controlled.
Categorical Variable
A kind of independent variable that cannot be manipulated.
Alpha
A level of probability set by the experimenter before the study, sometimes referred to as 'level of significance' is called:
Is directly testable
A null hypothesis
Hypothesis
A researcher conducts a study on the effectiveness of computer-assisted instruction (CAI) by comparing classes that use this method with classes that do not. The researcher expects the CAI classes to show higher gains in achievement. This expectation is:
Research Hypothesis
A researcher predicts that there will be a positive relationship between attitude scores and grade point average. This is an example of a
Control Variable
A variable is a factor that could possibly influence the results of the study and should be kept out
True
All IRB's are mandated by the U.S. Department of Health and Human Services
Operational Definition
An observable phenomenon that enables the researcher to test empirically whether the predicted outcome can be supported
Statement of the problem (purpose of study)
At the end of a well-written introduction, the reader should be able to predict the
Conducted in educational settings involving educational practices, use of educational tests, studying existing databases
Exempt Review includes the following criteria:
High Risk Populations
Full Board review includes:
Pearson Product or 'r'
The commonly used method of computing between two variables is called:
Dependent Variable
The effect variable is also called:
Internal
The extent to which the results of the study can be attributed to the treatments used in the study is the definition of what kind of validity
External
The generalizability of the results pertains to what kind of validity?
B-6 and B-12, Omega-3 Fatty Acids, Curcumin, Tart Cherry Concentration Juice
The intervention (IV) group received high performance supplements. Which of the following were part of the High Performance Supplements
Beta
The magnitude of a type II error is called
Experimental Research
The only type of research that can manipulate treatments and establish a cause and effect is:
Independent Variable
The part of the experiment that the researcher is manipulating, also called the treatment variable.
True
The purpose of the IRB is to assess the ethical aspects of human subject research?
Research hypothesis
The researcher's statement that "the boys in the adventure program will make significantly greater gains in self-concept than the boys in the control group" is an example of a:
Null Hypothesis
Used primarily in the statistical test for the reliability of the results that says there is no differences among treatment groups is called:
Plagiarism
Using ideas, concepts, writing or drawings of others as your own is an example of
Informed consent informs the participants of the risks and benefits that could be expected; An instruction that the participant is free to withdraw consent and discontinue participation in the project at any time.
What is true about Informed Consent?
Autonomy, minimize possible harm, fairness
Which of the following are included in the Ethical Principles of the 'Common Rule'?
A factor that could possible influence the results and is kept out of the study
Which of the following is the correct definition of 'Control Variable'?
A factor that could affect the relationship between the independent variable and dependent variable but that is not included or controlled
Which of the following is the correct definition of 'Extraneous Variable'?
Part of the experiment that the researcher is manipulating or treatment variable
Which of the following is the correct definition of 'Independent Variable'?
Extend to which the results can be attributed to the treatment of the study
Which of the following is the correct definition of 'Internal Validity'?