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How We Rated the Insurers

We regularly survey area CHECKBOOK and Consumer Reports subscribers for their feedback on services they have used. For our survey on auto insurers, we asked consumers who had had a claim or claims against their auto insurance companies to rate their experiences “inferior,” “adequate,” or “superior” on several aspects of service. Policyholders could rate their companies on “simplicity of claims procedures,” “speed of claims payment,” “adequacy of payment,” “courtesy and helpfulness,” “not unreasonably cutting coverage,” and “not unreasonably raising premiums.” Our Ratings Tables show the percent of each company’s surveyed policyholders who rated it “superior” (as opposed to “adequate” or “inferior”) on each question. 

We have included in our ratings tables all of the insurance groups or companies for which we received at least 10 ratings on our customer surveys. If a company is not listed in our ratings tables, it simply means we did not receive at least 10 ratings for it; that fact has no negative or positive implications. 

The insurer names we use are short-hand and may relate to a group of companies; the customer survey ratings are all that we received from customers who identified what we judged to be the company or group associated with this name. 

Since some companies were rated by rather small numbers of raters, small differences between two firms in the percentage of raters who gave a particular rating (say, “superior”) should be ignored. The table below gives a rough guide to minimum differences you should look for in deciding on one firm over another. 

When using these survey data, remember that the questions are to some degree subjective and that the differences among firms might be explained by differences in the personalities, backgrounds, critical standards, and other characteristics of the raters or by biases these raters might have. 

Survey of Auto Body Shops 

We also sent surveys to area auto body shops, asking them to name the two insurers they considered “most desirable” for “treating their customers (car owners) fairly” and the two insurers they considered “least desirable.” 

For each company that received at least five total mentions (either favorable or unfavorable), our Ratings Tables show the total number of times the company was mentioned and the percentage of the mentions that were favorable. 

Keep in mind that in cases where shops were mentioned either favorably or unfavorably less than 10 times, a high or low score may be mostly a matter of luck. 

Complaint Counts and Rates 

On our Ratings Tables, we have reported the number of private passenger auto insurance complaints filed in 2007 with the Washington State Office of the Insurance Commissioner. We have also reported a “complaint rate” for each company. The complaint rate is intended to take into account the fact that some companies do much more business than others and therefore are more exposed to incurring complaints. It is calculated as a company’s number of 2007 complaints per $1 million in 2007 direct private passenger auto insurance premiums written. 

Sample Premiums 

Our price comparisons list companies’ annual premiums for four illustrative families for five addresses in the Puget Sound area. 

We obtained the rates whenever possible from the companies’ websites. If a company did not have a website with online rate quotes or we could not obtain quotes from a company’s website, our researchers called the company’s agents and, without disclosing their affiliation with CHECKBOOK, obtained the price quotes over the phone. 

The price comparisons pages list the details of each family’s characteristics and also the assumptions we made when collecting the rates. All premiums are annual rates and assume the policy was being written as new business for the company. Some rates were rounded to the nearest whole dollar. 

It should be noted that the premiums were collected using CHECKBOOK staff members’ actual personal information and driving histories. Since your characteristics, driving history, and other information are likely different from those of our sample drivers, the companies that are lowest priced for you may be different from the results we obtained for similar profiles. 

Our Top Ratings 

We give checkmarks to firms that score highest on a scoring system that we devise for each service field. This system weights the various data in our ratings tables based on our subjective judgment of their importance. Since the scores are based entirely on information presented, you can apply your own judgments, and decide whether you prefer firms we have not given checkmarks. 


A rough guide for deciding whether the difference between two percentages is important If one firm had this number of ratings: And a second had this number of ratings: Do not give much importance to the difference between percentages unless the difference is at least this many percentage points:
Assuming the average of the two firms' percentages is 50 percent 10
30
60
120
10
30
60
120
45
26
18
13
Assuming the average of the two firms' percentages is 80 percent 10
30
60
120
10
30
60
120
36
21
15
10

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