Fig. 7From: A valid assessment of students’ skill in determining relationships on evolutionary treesInterview question containing a node counting strategy distracter and example student response. The correct response is a. Hawk. The incorrect response demonstrates a node counting distracter; counting internal nodes between taxa, fewer internal nodes separate the platypus and the snake than separate the hawk and the snake. Student 7 employs the node counting strategy to answer the question and answers incorrectlyBack to article page