Which of the following evaluations is primarily concerned with the end results of a program?

Outcomes-based evaluation is focused on assessing the results or impacts that a program has achieved in relation to its stated objectives. This type of evaluation measures the effectiveness of a program by examining the changes or benefits that occur as a result of the program's activities. It allows evaluators to determine whether the program is successful in achieving its ultimate goals and whether participants have experienced the intended outcomes.

In contrast, process-based evaluation looks at the implementation of the program—how activities are conducted and whether they adhere to the planned procedures, rather than what results those activities produced. Goals-based evaluation measures to what extent a program has achieved its specified goals, but it doesn't always focus on the actual changes experienced by the audience or participants that come about as a result of the program. Formative evaluation is typically conducted during the development or improvement phases of a program and aims to provide ongoing feedback to enhance the program rather than assess its final outcomes.

Focusing on the end results makes outcomes-based evaluation particularly important for demonstrating accountability and effectiveness to stakeholders, ensuring that the benefits of a program are clearly articulated and measured.