Two observers described the same event using different words. What should be done to make comparison easier?

Correct answer: Use predefined criteria and a common recording table

When different observers describe the same event in different words, their observations cannot be compared fairly unless the information is recorded in a common way. Predetermined criteria tell everyone what features to look for, while a shared recording table gives the same headings, units, and type of entry. This reduces differences caused only by wording or personal judgement. Therefore option B is the scientifically appropriate choice.

The procedure should be decided before observation begins, so that one observer is not allowed to change the rules after seeing the result. Stopping observation gives no comparable evidence. Keeping only the senior observer's account replaces standardisation with authority and may discard useful data. Mixing descriptions without a common structure can make the information more confusing. A common table does not remove every possible error, but it makes the records clearer and more consistent.