Research Methodology Revision

Mixed-method research refers to use of both:

• Experimental and correlational methods

• Quantitative and qualitative methods

• Description and intervention

• Group and single subject designs

Which of the following factors should not influence the decision when one is selecting a topic or problem for research?

• Will solution of the problem advance knowledge in my field?

• Will I be able to prove that my previously held beliefs are true?

• Will the study lead to the development of other investigations?

• Is the topic or problem amenable to research?

Operational definitions are encouraged in research in order to:

• conform to the requirement of statistical analysis

• increase the probability that experiments will succeed

• make terms used in a study as explicit as possible

• make educational research more easily understood by laypersons

"Students taught first aid by programmed instruction will achieve at a higher level than those taught first aid by the traditional method." The dependent variable in this hypothesis is:

• students

• level of achievement

• programmed instruction

• method of instruction

A researcher who decides to deceive participants in a study should:

• determine that the study cannot be done without deception

• argue convincingly that the importance of the study justifies deception

• undeceive participants as soon as possible

• all of the above

Confidentiality requires that:

• it be impossible to connect data to individuals

• all data be collected anonymously

• access to collected data be limited to research staff

• participants not be asked for personal information

The first step in selecting a sample should be to:

• define the population

• decide how to stratify the population

• compile a list of the population

• determine how to randomize

Generalizing research findings from a sample to the population is most likely to be justifiable when:

• a small systematic sample is used

• cluster sampling is used in a large, heterogeneous population

• the null hypothesis is confirmed, regardless of the sampling procedures used

• a large random sample is used

Which of the following is the best synonym for validity?

• Consistency

• Feasibility

• Truthfulness

• Economy

Which of the following is the best synonym for reliability?

• Consistency

• Usefulness

• Truthfulness

• Economy