A theory is said to be powerful if it?
- Is extremely accurate
- Has a high degree
- Provides an explanation for a large number of events
- Is valid
A post test in an experiment is sometimes called the?
- Experimental treatment
- Treatment variable
- Experimental variable
- Dependent variable
The basic goal of educational research and development is to?
- Discover new knowledge through
- Develop research-based products
- Improve existing education products
- Test educational materials
Following are the categories of research type by method?
- Action and historical
- Basic and applied
- Descriptive and action
- Experimental and casual comparative
If the results of the test and retest are the same, it is in fact?
- Stability
- Reliability
- Validity
- Objectivity
The degree to which a test consistently measures what ever it measures is called?
- Reliability
- Validity
- Objectivity
- None
The lowest level of measurement is represented by?
- Ordinal scales
- Nominal scales
- Internal scales
- Ratio scales
The highest, most precise level of measurement is?
- Ordinal scales
- Nominal scales
- Internal scales
- Ratio scales
While writing research report one should be?
- Subjective
- Objective
- Introspective
- Interpretive
Independent variable can not be manipulated, the cause and effect relationship is to be determined in the type of research called?
- Correlation
- Causal comparative
- Experimental
- Descriptive