Ranking Score Explained

Hi there, thanks for your interest in how we calculate an experience's ranking score. It's at the core of Rankers so I'm pleased you're curious.

The ranking score percentage is used to compare and sort experiences in ranking tables. It is not necessarily a direct measurement of the quality of a particular experience as rated by its customers. I've found it a useful tool to allow me to find the best experiences with confidence. But I've also found it important to read the customer reviews before making any final judgements!

We calculate an experience's ranking score using a multi-factor data model instead of a raw data average (mean). This model takes into account several important questions. For instance - is there a trusted body of reviews? What is the age of a review and is the review from a credible source?

Below you'll find details around some of the important factors that went into calculating the ranking score for Otago Central Rail Trail.

If you have any questions or comments about our ranking score calculation please get in touch at info@rankers.co.nz. We don't believe this is perfect or complete so we're always interested in ways we might make improvements.

Nick Morrison's avatar

Nick Morrison

Rankers owner

Otago Central Rail Trail

Valid Reviews

27 Valid Reviews

The Otago Central Rail Trail experience has a total of 28 reviews. There are 27 valid reviews that are included when calculating the ranking score and 1 invalid review that are excluded from the calculation. Reviews can be excluded only when a reviewer is not verified or after an investigation by our team determines the reviewer is not genuine.

Below is the distribution of ratings for the 27 valid reviews:

Rating Count Percentage
10/10 11
41%
9/10 9
33%
8/10 4
15%
7/10 2
7%
6/10 1
4%
5/10 0
0%
4/10 0
0%
3/10 0
0%
2/10 0
0%
1/10 0
0%

90.00% Average

The raw data average (mean) for all the Otago Central Rail Trail valid reviews is 90.00% and is based on 27 valid reviews. This value is not used to calculate the ranking score and it only provided here as a comparison to the weighted average.

Face-to-Face Reviews

21 Face-to-Face Reviews

The Rankers team meets with travellers while they’re in New Zealand and conducts face-to-face surveys. These reviews, in our opinion, are the most trusted in the industry and represent a critical control sample. To our knowledge, we are the only travel review website in the world that has gone to this extent.

More about face-to-face reviews

Within the 27 valid reviews, the experience has 21 face-to-face reviews collected during interviews by our team.

Below is the distribution of ratings for the 21 face-to-face reviews:

Rating Count Percentage
10/10 8
38%
9/10 9
43%
8/10 2
10%
7/10 1
5%
6/10 1
5%
5/10 0
0%
4/10 0
0%
3/10 0
0%
2/10 0
0%
1/10 0
0%

90.48% Average

The raw data average (mean) for all the Otago Central Rail Trail face-to-face reviews is 90.48% and is based on 21 face-to-face reviews. This value is not used to calculate the ranking score and it only provided here for comparison purposes.

Weighted Average

91.12%

Rankers calculates a weighted mean as a base average on which we can improve. Individual review's ratings are given a weight based on several factors. The weight of a review determines the overall impact it'll have on the final weighted average.

Recent reviews have more weight as they are more relevant and reflect the experience as it currently operates. Over time reviews become less relevant and loose their impact on the ranking score.

Low rating reviews carry slightly less weight. This dampens the effect of very low ratings for every experience across the board. This is especially important when the experience has few reviews overall and a single negative rating can grossly mischaracterise an experience. Consistent poor reviews will still result in the experience receiving a comparitively low ranking score.

Credible sources provide reviews that can be trusted. If we have verified a reviewer is genuine via a face-to-face meeting then the review carries additional weight.

Reviewer Rating Age Relative Weight
Rob Manson 9/10 1902 days 100%
Alan West 10/10 1961 days 97%
Rebecca Wharton 9/10 2248 days 80%
Don Wallis 8/10 2623 days 55%
Helen and Ogi 10/10 2976 days 37%
Bill and Noreen 9/10 2989 days 36%
Loesje 10/10 3083 days 31%
AnthonyWaygood 10/10 3267 days 20%
Karl Brachtl 9/10 3337 days 16%
AndreF 7/10 3449 days 8%
cruisysue 8/10 3541 days 3%
Extremo 10/10 3602 days 0%
Margaret & Donald Finlayson 7/10 3675 days 25%
Celia Murphy 10/10 3712 days 27%
Friedli Manuela 10/10 3717 days 27%
victoriauk 9/10 3967 days 27%
Chris & Rob 10/10 3991 days 27%
jenniferuk 9/10 3998 days 27%
Agnes 6/10 4038 days 22%
Kevin F 10/10 4041 days 27%
R Bakker 9/10 4050 days 27%
Maureen Pearman 10/10 4060 days 27%
Yasmin Abrahams 8/10 4061 days 26%
Bob and Carol Duncan 10/10 4079 days 27%
SonjaG 9/10 4427 days 27%
jaejacobson 8/10 4560 days 26%
Vicky Elliott 9/10 4804 days 27%

Adjustments

No Adjustment

Several adjustments to the weighted average may be added to improve relevancy and credibility. Otago Central Rail Trail does not meet the criteria for any of these adjustments to apply.

Final Ranking Score

91%

The final ranking score once rounding has been applied. This value is cached and recalculated each day. Therefore it may not be precisely accurate based on the other values presented.

If you have any questions or comments about our ranking score calculation please get in touch at info@rankers.co.nz.