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 Waitomo Adventures Ltd.
If you have any questions or comments about our ranking score calculation please get in touch at firstname.lastname@example.org. We don't believe this is perfect or complete so we're always interested in ways we might make improvements.
93 Valid Reviews
The Waitomo Adventures Ltd experience has a total of 94 reviews. There are 93 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 93 valid reviews:
The raw data average (mean) for all the Waitomo Adventures Ltd valid reviews is 86.13% and is based on 93 valid reviews. This value is not used to calculate the ranking score and it only provided here as a comparison to the weighted average.
77 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.
Within the 93 valid reviews, the experience has 77 face-to-face reviews collected during interviews by our team.
Below is the distribution of ratings for the 77 face-to-face reviews:
The raw data average (mean) for all the Waitomo Adventures Ltd face-to-face reviews is 85.32% and is based on 77 face-to-face reviews. This value is not used to calculate the ranking score and it only provided here for comparison purposes.
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.
|Thomas Klinting||10/10||497 days||73.03||88%|
|Franz Mesey||9/10||512 days||58.46||70%|
|Judit Van lanen||10/10||530 days||66.59||80%|
|Jack Robinson||8/10||568 days||58.81||71%|
|Mikulas and Dominika||8/10||590 days||54.49||65%|
|Elizabeth Braidotti||10/10||640 days||37.81||45%|
|Craig Forsyth||10/10||757 days||23.1||27%|
|Lea Behnem||10/10||830 days||19.35||22%|
|Nicolas Justin||7/10||1174 days||5.87||6%|
|Stephanie Piou||8/10||1174 days||5.87||6%|
|Devan Sheppard||10/10||1271 days||5.71||6%|
|Nina Coopmans||7/10||1883 days||4.7||5%|
|Lieven De Vlaminck||9/10||1913 days||4.66||4%|
|Bart Slingerland||9/10||2263 days||4.08||4%|
|Birds Tubbs||10/10||2264 days||4.08||4%|
|Ryan Pynappels||9/10||2290 days||4.04||4%|
|Tobias Forst||8/10||2371 days||3.9||4%|
|Sarah and Soren||9/10||2376 days||3.89||4%|
|Alberto Redner||10/10||2386 days||3.88||4%|
|Sarah James||10/10||2613 days||3.5||3%|
|Nick Taylor||10/10||2613 days||3.5||3%|
|Laurent Pouvreau||10/10||2617 days||3.5||3%|
|Wouter Jansen||8/10||2650 days||3.44||3%|
|Luise Jaeger||3/10||2663 days||3.17||3%|
|Sam Bishop||10/10||3010 days||2.38||2%|
|Kay Beaumont||10/10||3012 days||2.85||2%|
|Jakob Pedersen||7/10||3020 days||2.84||2%|
|Jens van Evp||9/10||3034 days||2.81||2%|
|Max Van der Zalm||8/10||3034 days||2.81||2%|
|Carolina Gonzalez||8/10||3036 days||2.81||2%|
|Chance McGuire||10/10||3038 days||2.34||2%|
|Thomas Willi||10/10||3110 days||2.69||2%|
|Jess Pasos||10/10||3119 days||2.67||2%|
|Nikki Turner||8/10||3265 days||2.43||2%|
|Ian S||8/10||3393 days||2.22||1%|
|Bronagh Mcartan||9/10||3592 days||1.9||1%|
|Brent Scanlan||10/10||3686 days||1.74||1%|
|Meike Biel||10/10||3694 days||1.73||1%|
|Peter Aston||5/10||3736 days||1.66||1%|
|Melissa Steedman||9/10||3783 days||1.58||1%|
Several adjustments to the weighted average are added to improve relevancy and credibility. These adjustments apply equally to all experiences that meet the criteria.
A reasonable number of reviews are necessary in order for the average to be credible and for an experience to take a prime position within the ranking tables. As such, experiences with only a few reviews have a moderated score. This does not mean that the experience or the reviews can't be trusted. The Waitomo Adventures Ltd experience has plenty of reviews and does not meet the criteria for any adjustment.
There may be an adjustment if an experience hasn't received any reviews within the last 60 days. However the Waitomo Adventures Ltd experience does not meet the criteria for any adjustment.
In addition, an experience's ranking score may be adjusted for each day there is no new ranking. After 1 day the adjustment comes into effect. The maximum number of days that can be adjusted for is 364 days.
The Waitomo Adventures Ltd experience has been adjusted for 187 days. Adjustments are according to the following table.
The final ranking score once adjustments and 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 email@example.com.