- What are the most common types of evaluation?
- Formative Evaluation
- Summative Evaluation
- Process Evaluation or Implementation Evaluation
- Outcome Evaluation or Effectiveness Evaluation
- Impact Evaluation
- Performance Evaluation
- Cost-Benefit Analysis
- Understand the difference between the different types of evaluations
- Pros and cons of different types of evaluations
- Conclusion in types of Evaluation

Evaluations are an important part of any organization, whether it’s a school, a business, or a government agency. There are many different types of evaluation methods, each with its own unique strengths and weaknesses. Once you’ve determined which program activities in your logic model should be evaluated, you can begin to identify the types of evaluation you can conduct.
In this blog post, we’ll provide an overview of the different types of evaluations and their uses. Read on to learn more!
Table of contents
- What are the most common types of evaluation?
- Formative Evaluation
- Summative Evaluation
- Process Evaluation or Implementation Evaluation
- Outcome Evaluation or Effectiveness Evaluation
- Impact Evaluation
- Performance Evaluation
- Cost-Benefit Analysis
- Understand the difference between the different types of evaluations
- Pros and cons of different types of evaluations
- Conclusion
What are the most common types of evaluation? #
There are several types of evaluations that can be used to assess the effectiveness and impact of programs, policies, and projects. Different types of evaluations can be used to assess various aspects of a program, policy, or project, and to answer different questions about its effectiveness, impact, or implementation.
The different types of evaluation are used in various settings to assess the effectiveness, efficiency, and impact of programs, policies, and projects. The selection of the most appropriate type of evaluation depends also on what is being evaluated, the purpose of the evaluation, and the available resources. Here are some common types of evaluations.
Formative Evaluation #
Formative evaluation ensures that a program or program activity is feasible, appropriate, and acceptable before it is fully implemented. It takes place during the design and implementation phase of a program or when an existing one is being adapted or modified. Read more: Formative Evaluation.
Summative Evaluation #
Summative evaluation looks at the impact of an intervention on the target group. It occurs after the program has been completed. The focus is on measuring the overall impact and effectiveness of the program. As such, summative evaluation can also be referred to as ex-post evaluation (meaning after the event). Read more: Summative Evaluation.
Process Evaluation or Implementation Evaluation #
Process evaluation or implementation evaluation determines whether program activities have been implemented as intended. It evaluates the implementation process of the program. The focus is on understanding the activities and methods used in the program, and how well they were carried out. Read more: Monitoring and Evaluation Process: Steps and Challenges.
Outcome Evaluation or Effectiveness Evaluation #
Outcome evaluation or effectiveness evaluation measures program effects on the target population by assessing the progress in the outcomes or outcome objectives that the program is to achieve. It measures the results or outcomes of the program. The focus is on the impact the program has had on participants and the larger community. Read more: Outcome Evaluation and Effectiveness Evaluation.
Impact Evaluation #
An impact evaluation provides information about the impacts produced by an intervention. Impact evaluation assesses program effectiveness in achieving its ultimate goals. It evaluates the long-term effects of the program and measures changes that can be attributed to it. An impact evaluation must establish the cause of the observed changes. Read more: “What is Impact Evaluation?”.
Performance Evaluation #
It evaluates the performance of individuals or teams involved in the program, and assesses their ability to carry out specific tasks. Performance Evaluation strives to assess the success of projects, programs, or initiatives by collecting evidence and making a judgment about the success or failure of that project. Performance Evaluation also helps organizations identify areas for improvement, which can guide decisions about how best to allocate resources. Read more: Performance Evaluation.
Cost-Benefit Analysis #
It evaluates the financial aspects of the program and determines whether the benefits outweigh the costs. The cost-benefit analyst sums the potential rewards expected from a situation or action and then subtracts the total costs associated with taking that action. Read more: “Cost-Benefit Analysis“.
Understand the difference between the different types of evaluations #
It is important to understand the difference between the different types of evaluations in order to be able to plan the evaluation in accordance with the most appropriate evaluation method

Related: What is the difference between monitoring and evaluation
Pros and cons of different types of evaluations #
When considering the pros and cons of different types of evaluations, it is important to look at the overall goals of the evaluation. For example, if the goal is to assess impact, then a statistical analysis evaluation might provide more accurate results than an observation-based approach.
It is also important to consider the cost. For instance, some statistical analysis approaches may require more labour and resources than a qualitative approach. On the other hand, a statistical analysis approach might yield more valuable insights than an observation-based approach in terms of accuracy and reliability.
Applying a Cost-Benefit Analysis to any proposed monitoring and evaluation approach can be a valuable way to ensure that resources are allocated efficiently, and identify where further discussion or assessment of a proposed approach may be needed. Such an approach can help decision-makers assess the costs of implementation and the benefits which might accrue from the proposed evaluation, including cost savings, improved efficiency, or better outcomes. This can help manage risk, inform decision making and optimize resource allocation.

The observation-based approach evaluation can be highly effective when utilized as a supplemental method; They can provide greater context and qualitative data that can help inform decisions made based on quantitative approaches.
However, the most effective evaluation method should be tailored to meet the needs of each particular situation.
- It is important to consider all available options carefully in order to determine which approach would be most suitable for achieving desired results.
- Besides, it is essential to consider the various monitoring and evaluation methods available for each situation before deciding on the most appropriate one.
- It is important to take into account the type of results needed and the resources available when evaluating which approach is best suited for successfully obtaining desired outcomes.
- Ultimately, tailored evaluation methods are necessary to ensure that desired goals can be achieved.
Conclusion in types of Evaluation #
In conclusion, there are various types of evaluation that can provide valuable insight into how well a program or intervention is working. Each type of evaluation has its own advantages and disadvantages, so it is important to choose the right one for the circumstances.
Choosing the right type of evaluation can help organizations make informed decisions, increase effectiveness and efficiency in program delivery, and demonstrate accountability and results to funders.
Each type of evaluation serves a different purpose and provides important information for decision-making. It is important to select the appropriate type of evaluation based on the goals and objectives of the program being evaluated.