# Comparing personalized OpenSearch results to results without personalization
Comparing results

To understand how results are re-ranked, you can run queries with the [Dev Tools console](https://opensearch.org/docs/latest/dashboards/dev-tools/run-queries) in two separate browser windows. Then you can compare results for queries with and without personalization. 

**To compare results with the Dev Tools console**

1. Make sure OpenSearch Dashboards is installed. The quickstart bash script installs OpenSearch Dashboards. If you don't use the script or already have a cluster running, you must install OpenSearch Dashboards. For more information, see [Installing OpenSearch Dashboards](https://opensearch.org/docs/latest/install-and-configure/install-dashboards/index/).

1. Launch OpenSearch Dashboards. Open `http://localhost:5601` from a browser and sign in to OpenSearch Dashboards. The default credentials are username 'admin' and password 'admin'.

1. Choose **Dev Tools** under the Management menu on the OpenSearch Dashboards home page.

1. Open a separate browser window and open the Dev Tools console again. You can use the URL from the previous window.

1. In one window, enter a query that doesn't use any re-ranking for personalization. In the other window, enter a curl command that uses a pipeline with the `personalized_search_ranking` response processor. If you paste a curl command directly into the console, the command is automatically converted into the format that the console uses. For a command example, see [Applying the Amazon Personalize Search Ranking plugin to queries in open source OpenSearch](opensource-apply-plugin.md).

1. Run both queries and compare the results.