Descriptor
Sampling | 3 |
Comparative Analysis | 2 |
Research Design | 2 |
Research Methodology | 2 |
Research Problems | 2 |
Bias | 1 |
Causal Models | 1 |
Community Colleges | 1 |
Community Needs | 1 |
Community Study | 1 |
Control Groups | 1 |
More ▼ |
Source
Publication Type
ERIC Publications | 3 |
ERIC Digests in Full Text | 2 |
Guides - Non-Classroom | 1 |
Education Level
Audience
Location
Laws, Policies, & Programs
Assessments and Surveys
What Works Clearinghouse Rating
Gribbons, Barry; Herman, Joan – 1997
Among the different types of experimental design are two general categories: true experimental designs and quasi- experimental designs. True experimental designs include more than one purposively created group, common measured outcomes, and random assignment. Quasi-experimental designs are commonly used when random assignment is not practical or…
Descriptors: Comparative Analysis, Control Groups, Evaluation Methods, Evaluation Utilization
Helberg, Clay – 1996
Abuses and misuses of statistics are frequent. This digest attempts to warn against these in three broad classes of pitfalls: sources of bias, errors of methodology, and misinterpretation of results. Sources of bias are conditions or circumstances that affect the external validity of statistical results. In order for a researcher to make…
Descriptors: Causal Models, Comparative Analysis, Data Analysis, Error of Measurement
Dzierlenga, Donna; Friedlander, Jack – 1981
Practical information is provided, in a question and answer format, for community college officials who are planning to conduct a community needs assessment. A brief discussion of the usefulness of needs assessment surveys to the college planning process is followed by descriptions of eight steps to be followed in planning and conducting a survey:…
Descriptors: Bias, Community Colleges, Community Needs, Community Study