Go-well Vitamins are made especially for teenagers. They make your skin shiny and clear. Mrs. J. Rice reports that her daughter's skin has improved dramatically, thanks to Go-well Vitamins. "I love what Go-well has done for me," Lily Rice confirms. Go-well is making teens happy throughout the Midwest. Bottles are flying off the shelves.
Why is the claim about the vitamins unsupported by sufficient evidence?
(1 point)
Responses
The passage includes references to emotions.
The passage includes references to emotions.
The passage uses a figure of speech in the last line.
The passage uses a figure of speech in the last line.
The passage includes references to scientific research.
The passage includes references to scientific research.
The passage centers on a personal testimonial.
The claim about the vitamins is unsupported by sufficient evidence because:
The passage centers on a personal testimonial.
Personal testimonials are not considered scientific evidence as they can be biased, based on placebo effects, or not representative of the general population's experience. For a claim to be substantiated, it typically needs to be supported by controlled, peer-reviewed scientific studies that can be replicated and assessed for validity.