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'?