Which piece of evidence would be most effective to persuade a reader to support a claim that middle-school student should be required to wear uniforms?

a compared to the cost of regular clothes, the cost of uniforms is often quite less
b school uniforms can be ordered online, which is much easier than going to a store
c in a school district that recently made school uniforms a requirement, attendance rates and grades have increased
d when everyone looks the same in their uniforms, students begin to lose their uniqueness

c in a school district that recently made school uniforms a requirement, attendance rates and grades have increased

The most effective piece of evidence to persuade a reader to support the claim that middle-school students should be required to wear uniforms would be option c: in a school district that recently made school uniforms a requirement, attendance rates and grades have increased. This evidence directly demonstrates a positive impact on student performance and engagement, suggesting that uniforms could have similar benefits in other schools.

To determine which piece of evidence would be most effective in persuading a reader to support the claim that middle-school students should be required to wear uniforms, let's examine each option:

a) Compared to the cost of regular clothes, the cost of uniforms is often quite less.
This piece of evidence could be effective in persuading someone who is concerned about the financial burden of purchasing clothes for their children. To support this claim, you would need to provide specific examples or data comparing the costs of regular clothes with uniforms.

b) School uniforms can be ordered online, which is much easier than going to a store.
This evidence appeals to convenience and may be persuasive to readers who value efficiency. However, it may not be the most convincing because ease of purchase does not necessarily justify a requirement for uniforms. To strengthen this point, you could provide statistics or testimonials about the efficiency of online ordering.

c) In a school district that recently made school uniforms a requirement, attendance rates and grades have increased.
This evidence appeals to the idea that uniforms can have a positive impact on academic performance and attendance. It presents empirical data to support the claim. This evidence would be more persuasive to readers who prioritize these outcomes and value evidence-based decision-making.

d) When everyone looks the same in their uniforms, students begin to lose their uniqueness.
This evidence appeals to the value of individuality and self-expression. However, it may not be as convincing to readers who prioritize other factors, such as academic performance or discipline. It is important to provide additional evidence to support this claim, such as anecdotes or research on the impact of uniforms on self-expression.

Considering the effectiveness of each option, evidence (c) stands out as the most persuasive. It provides concrete data suggesting a positive correlation between the introduction of uniforms and improved attendance rates and grades.