EXSC 525 Quiz Module 6
EXSC 525 Quiz Module 6 Various Descriptive and Experimental Research Methods
Covers the Learn material from Module 6: Week 6.
- The only true experimental design that can specifically evaluate the reactive or interactive effects of testing is the _______ design.
- Just before the posttest, students in the control group were shown a film in another class that related directly to the subject matter being studied in the treatment group. This represents what kind of threat to internal validity?
- Multiple-treatment interference and the interaction of selection bias and experimental treatment are threats to
- A job analysis is primarily a form of what research technique?
- The case study
- It is reasonable to expect volunteer participants to be similar in nature to
- In developmental studies, when one wants to determine how individual children change rather than what is typical at each stage, one would prefer the ________ method.
- In a research study in which the treatment involved quite intense physical training, 40% of the participants in the treatment group dropped out as compared with 5% of the control group. This threat to internal validity is called
- A double-blind experiment is one in which
- A pretest of knowledge about microcomputers is given to a group of students 5 minutes prior to a lm on the subject. A posttest given 10 minutes after the film shows a 10-point gain from the pretest. The researcher concludes that the film produced the gain. Which of the following is likely the threat to internal validity?
- A researcher wants to determine the percentages of time that a teacher spends in various tasks, such as demonstration, explanation, and monitoring students. Which of the following is probably the most valid way to research this?
- In experimental design, when comparisons are made of groups that have been selected on the basis of their extreme scores, the posttest means of the groups tend to move toward the mean of the entire population from which the extreme groups were selected. This threat to internal validity is called
- A basic characteristic of correlational research is that it
- A researcher finds that the control group performs above its usual performance when compared with the experimental group. This effect is named the
- Individuals performing well merely because they are being observed (and not necessarily because of any effect of treatment) are considered to be under the influence of the
- A researcher wishes to study a group of children over a period of 10 years beginning in 2016 and ending in 2025. This is an example of a ________ study.
- The A-B-A-B designation refers to which type of research design?
- A major weakness of observational research lies in the operational definitions. Which question is an example of an operational definition?
- The internal validity of an experimental design is concerned with what question?
- A major limitation in the use of video-recording in observational research is its
- First, provide a definition of both internal and external validity and explain how each affects the quality of an experimental study. Second, discuss the relationship between internal validity and external validity (10pts).
- Briey discuss three major weaknesses in observational research that could affect the validity and reliability of the measures (10pts).