must pairwise comparison be used with more than 10 potential causes?

Pairwise comparison can be used with more than 10 potential causes, but it may not be practical or efficient. The number of comparisons increases exponentially with the number of items, so with 10 items, you would have 45 comparisons. This can be time-consuming and may lead to decision fatigue.

Here are the steps to consider:

1. Identify the potential causes: List all the potential causes that you want to compare.

2. Set up a comparison matrix: Create a matrix with the potential causes on both the row and column headers.

3. Compare each pair of causes: For each pair of causes, decide which one is more important or has a greater impact.

4. Assign scores: Assign a score to represent the importance or impact of each cause.

5. Sum the scores: Add up the scores for each cause.

6. Rank the causes: Rank the causes based on their total scores.

7. Review the results: Look at the ranked list of causes to determine which ones to focus on.

However, if you have more than 10 potential causes, you might want to consider using a different method, such as a decision matrix or a Pareto analysis, which can handle larger numbers of items more efficiently.