In reply to Trangia:
I'm not expecting my response to be influenced, just trying to understand the nature of the response I'm being asked for. Is it my emotional reaction to the photo, or how I risk-assess the situation shown? The answers will be quite different. This questionnaire seems to confuse how you perceive risk, which should be a logical process, with how you respond emotionally to it, which is an entirely different question and doesn't always respond to logic.
I'm not being asked how I react to the photo, I'm being asked to "rate the level of risk you feel within this image", and to do so against a scale which has unrelated values at either end. I'm not sure if the question intentionally uses poor English to deliberately obscure what it means.
I'm safe and warm indoors at home. No photo is likely to alarm me, unless it were to trigger some remembered trauma (but that's different from assessing risk). If I'm being asked to consider what level of risk a scene in a photo might represent, in most cases that's difficult without more context. Is the guy with the knife a stranger in an alley or a contestant on Masterchef? Am I looking at the misty mountain through a window, or am I about to go up it? Different answers every time.