Here are some specific things a critical reader might look for when evaluating the logos of an op-ed piece:
* Facts: Are the facts accurate and relevant? Are they presented in a way that is fair and unbiased?
* Statistics: Are the statistics accurate and reliable? Are they used in a way that is misleading or deceptive?
* Expert opinions: Are the expert opinions credible and relevant? Do they support the writer's claims?
* Personal anecdotes: Are the personal anecdotes relevant and illustrative? Do they support the writer's claims?
* Logic: Is the writer's logic sound? Do the premises support the conclusions? Are there any fallacies in the writer's reasoning?
By carefully evaluating the logos of an op-ed piece, a critical reader can better understand the writer's argument and make informed judgments about its validity.