I think it would be difficult to give a list of correlation indicators, as there are so many variations without typical indicators. But I would suggest your review the CC in which there is a lesson on causation. Some lessons there summarized the correlation vs. causation very well.
Basically, correlation is a prerequisite of causation, but correlation does not necessarily result in a causal relation (usually not in LSAT, as it's a common error that they test!). Given a correlation, you need to consider several things before conclude that it's a causation, like competing explanation, third common cause, chronology, competing data sets, etc.
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I think it would be difficult to give a list of correlation indicators, as there are so many variations without typical indicators. But I would suggest your review the CC in which there is a lesson on causation. Some lessons there summarized the correlation vs. causation very well.
Basically, correlation is a prerequisite of causation, but correlation does not necessarily result in a causal relation (usually not in LSAT, as it's a common error that they test!). Given a correlation, you need to consider several things before conclude that it's a causation, like competing explanation, third common cause, chronology, competing data sets, etc.