Final answer:
The nursing professor exemplifies the cognitive technique of examining the evidence by suggesting that the partner might be contributing from home, thus encouraging a reconsideration of the evidence before making a judgment.
Step-by-step explanation:
The nursing professor's use of the cognitive technique of examining the evidence would be best exemplified by the response that directly addresses the evidence of the group member's participation. Among the provided options, response 3, "Has it occurred to you that your partner may be working on this project at home?" directly suggests examining the actual evidence of the partner's work that might not be immediately visible to others. This encourages the nursing student to consider alternative explanations for the partner's perceived lack of participation and prevents a rush to judgment without sufficient evidence.