One Group Post-Test Only Design
Description: This design invovles the implementation of an intervention with a group of people whom that intervention wth a group of people for whom that intervention was designed, and then the adminstration of a simple test or other measurement to ascertain the results of that intervention.
This can be described as an A-B design, with A being the pre-intervention status and B representing the post -intervention status
- Design is simple and practical
- Intervention is intended to increase positive outcome
- Intervention delivered and measured
Limitations: There are concerns about the validity of the findings, the validity of the measurement instrument, and consequently, the inability to present the effectiveness of the intervention with a high degree of confidence