A fifth grade teacher wants to assess her students' ability to think creatively. The most appropriate measure for this would be a(n) _____________ assessment.

The most appropriate measure for assessing students' ability to think creatively is through an essay or a teacher conference, as both methods allow for the expression of original thoughts and ideas.

An essay provides students the opportunity to organize their thoughts, develop arguments, and present their unique perspectives on a topic, which is essential for measuring creative thinking. It encourages students to think deeply, make connections, and articulate their understanding in innovative ways.

Similarly, a teacher conference allows for a more personal and interactive evaluation of a student's thoughts. In this setting, the teacher can engage the student in discussion, prompt them with questions, and observe their thought processes in real-time, providing insights into their creative thinking abilities.

Selected response assessments, on the other hand, typically focus on factual recall and standardized answers, which do not effectively measure creativity. Therefore, the combination of essays and teacher conferences together offers a comprehensive approach to evaluating students' creative thinking skills.