Hey, 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 Doubtful Sound Day Cruise.
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.
Doubtful Sound Day Cruise
Valid Reviews
284 Valid Reviews
The Doubtful Sound Day Cruise experience has a total of 286 reviews. There are 284 valid reviews that are included when calculating the ranking score and 2 invalid reviews 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 284 valid reviews:
| Rating | Count | Percentage | |
|---|---|---|---|
| 10/10 | 105 |
|
37% |
| 9/10 | 93 |
|
33% |
| 8/10 | 55 |
|
19% |
| 7/10 | 15 |
|
5% |
| 6/10 | 6 |
|
2% |
| 5/10 | 8 |
|
3% |
| 4/10 | 1 |
|
0% |
| 3/10 | 1 |
|
0% |
| 2/10 | 0 |
|
0% |
| 1/10 | 0 |
|
0% |
88.56% Average
The raw data average (mean) for all the Doubtful Sound Day Cruise valid reviews is 88.56% and is based on 284 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
262 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 284 valid reviews, the experience has 262 face-to-face reviews collected during interviews by our team.
Below is the distribution of ratings for the 262 face-to-face reviews:
| Rating | Count | Percentage | |
|---|---|---|---|
| 10/10 | 92 |
|
35% |
| 9/10 | 87 |
|
33% |
| 8/10 | 53 |
|
20% |
| 7/10 | 14 |
|
5% |
| 6/10 | 6 |
|
2% |
| 5/10 | 8 |
|
3% |
| 4/10 | 1 |
|
0% |
| 3/10 | 1 |
|
0% |
| 2/10 | 0 |
|
0% |
| 1/10 | 0 |
|
0% |
88.09% Average
The raw data average (mean) for all the Doubtful Sound Day Cruise face-to-face reviews is 88.09% and is based on 262 face-to-face reviews. This value is not used to calculate the ranking score and it only provided here for comparison purposes.
Weighted Average
92.02%
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 |
|---|---|---|---|
| Cees Koeman | 10/10 | 100 days | 100% |
| Nanay | 10/10 | 1806 days | 5% |
| Joanne&Ian | 10/10 | 1898 days | 5% |
| Geoff Steele | 8/10 | 3174 days | 2% |
| Axel and Patricia G | 6/10 | 3363 days | 2% |
| Leonie Westerhot | 8/10 | 3435 days | 2% |
| Ivanova R | 9/10 | 3692 days | 1% |
| Lorenz Pfisterer | 10/10 | 3704 days | 1% |
| Heidi et Mat | 8/10 | 3713 days | 1% |
| Anke Vater | 10/10 | 3714 days | 1% |
| Anouk Jongsma | 9/10 | 3722 days | 1% |
| Robin WUERFEL | 9/10 | 3794 days | 1% |
| Helen Parsons | 10/10 | 4114 days | 0% |
| Peter Beeloo | 9/10 | 4117 days | 0% |
| Laurent Arditi | 9/10 | 4302 days | 0% |
| Sheila Galpin | 9/10 | 4453 days | 1% |
| Simon Galpin | 9/10 | 4453 days | 1% |
| Douglas Dean | 10/10 | 4455 days | 1% |
| Stina Hultberg | 4/10 | 4459 days | 1% |
| Alexander Zimmer | 7/10 | 4460 days | 1% |
| Linus Larsson | 3/10 | 4461 days | 0% |
| Leon Courtney | 10/10 | 4462 days | 1% |
| Libby | 10/10 | 4476 days | 1% |
| Colin Billington | 7/10 | 4477 days | 1% |
| Don Wallis | 10/10 | 4480 days | 1% |
| Bill | 7/10 | 4481 days | 1% |
| Saskia | 5/10 | 4481 days | 1% |
| Terry Seaman | 8/10 | 4483 days | 1% |
| S B | 10/10 | 4496 days | 1% |
| M K | 10/10 | 4496 days | 1% |
| Alacchi Moustier | 10/10 | 4496 days | 1% |
| Maya Bakker-deDreu | 8/10 | 4504 days | 1% |
| Stuart Wilson | 8/10 | 4510 days | 1% |
| Fabian Lee | 5/10 | 4513 days | 1% |
| paul beacock | 10/10 | 4514 days | 1% |
| Gal Bero | 10/10 | 4517 days | 1% |
| Elly Zimmer | 6/10 | 4521 days | 1% |
| Bjorn Van Mulders | 10/10 | 4524 days | 1% |
| Kim Maertens | 9/10 | 4524 days | 1% |
| Steve Warren | 10/10 | 4636 days | 1% |
| hendrik king | 7/10 | 4728 days | 1% |
| Peter Jolliffe | 10/10 | 4820 days | 1% |
| Helen Dean | 10/10 | 4820 days | 1% |
| Dave Mertzig | 10/10 | 4820 days | 1% |
| Kathryn Pisco | 9/10 | 4826 days | 1% |
| Mike Pisco | 9/10 | 4826 days | 1% |
| Sebastian and Peter Beate | 10/10 | 4843 days | 1% |
| Fraser Goldsmith | 8/10 | 4844 days | 1% |
| Bucher | 9/10 | 4895 days | 1% |
| Marieke | 8/10 | 4896 days | 1% |
| Chew (Peter) | 7/10 | 4901 days | 1% |
| Natalie Nubler | 6/10 | 4902 days | 1% |
| Frans Derks | 9/10 | 4903 days | 1% |
| Meryem Buchwitz | 9/10 | 4923 days | 1% |
| roos wubben | 9/10 | 4926 days | 1% |
| Dagette | 9/10 | 4971 days | 1% |
| Teri C | 10/10 | 5001 days | 1% |
| Rob Klauer | 5/10 | 5173 days | 1% |
| Oliver Hardt | 9/10 | 5174 days | 1% |
| Val Phillips | 8/10 | 5178 days | 1% |
| Peter Adams | 9/10 | 5179 days | 1% |
| Harry Ruys | 8/10 | 5181 days | 1% |
| John McAllister | 9/10 | 5182 days | 1% |
| Keith Helen | 10/10 | 5185 days | 1% |
| Daniel Patricia | 9/10 | 5188 days | 1% |
| Laura Diepeveen | 8/10 | 5190 days | 1% |
| Fries | 10/10 | 5194 days | 1% |
| Karin Laurev | 10/10 | 5194 days | 1% |
| Gillian Rowe | 9/10 | 5195 days | 1% |
| Nigel Horrocks | 7/10 | 5195 days | 1% |
| Dieter Mangold | 10/10 | 5197 days | 1% |
| Lyn Deavin | 8/10 | 5197 days | 1% |
| Sabine & Stefan | 10/10 | 5198 days | 1% |
| Randewyk | 8/10 | 5198 days | 1% |
| Koster | 6/10 | 5200 days | 1% |
| Peter Aertssen | 7/10 | 5200 days | 1% |
| John A Jerome | 8/10 | 5200 days | 1% |
| Lynn Robinson | 10/10 | 5206 days | 1% |
| Heike | 9/10 | 5209 days | 1% |
| Robert MacLeod-Smith | 8/10 | 5210 days | 1% |
| Carel | 8/10 | 5211 days | 1% |
| Anna | 9/10 | 5212 days | 1% |
| Barrie Corless | 9/10 | 5213 days | 1% |
| Urban Reifler | 10/10 | 5225 days | 1% |
| Lyn Stainton | 10/10 | 5288 days | 1% |
| John & Vicki | 8/10 | 5292 days | 1% |
| jenckes | 9/10 | 5367 days | 1% |
| Debbie Smithers | 10/10 | 5509 days | 1% |
| Julie and Russ Charles | 10/10 | 5533 days | 1% |
| Kevin Wong | 10/10 | 5533 days | 1% |
| Rocipon | 8/10 | 5534 days | 1% |
| Margit and Corein Groenevelt | 7/10 | 5537 days | 1% |
| Richard Dudfield | 10/10 | 5537 days | 1% |
| John Duffy | 10/10 | 5537 days | 1% |
| Richard Gallichan | 9/10 | 5538 days | 1% |
| Jean Barker | 8/10 | 5538 days | 1% |
| Bette Eh | 10/10 | 5540 days | 1% |
| bryfrance | 10/10 | 5541 days | 1% |
| Juliane Kleiu | 10/10 | 5541 days | 1% |
| Claudia | 8/10 | 5541 days | 1% |
| E Brockbank | 9/10 | 5542 days | 1% |
| David Mellard | 10/10 | 5543 days | 1% |
| Bruce & Elaine Chote | 10/10 | 5543 days | 1% |
| Roland Berger | 7/10 | 5544 days | 1% |
| Ross | 9/10 | 5544 days | 1% |
| Gerstmann | 9/10 | 5545 days | 1% |
| Ekhard Wittkugel | 10/10 | 5547 days | 1% |
| Stephen Shearer | 10/10 | 5548 days | 1% |
| Monika | 10/10 | 5549 days | 1% |
| Betten | 9/10 | 5550 days | 1% |
| Stephen Jones | 9/10 | 5551 days | 1% |
| Mike and Diane Baker | 10/10 | 5552 days | 1% |
| Lenore Dejong | 10/10 | 5553 days | 1% |
| Andreas Fritesche | 8/10 | 5554 days | 1% |
| Matthys Kikke | 9/10 | 5555 days | 1% |
| Bucher Weruer | 10/10 | 5555 days | 1% |
| Camilla Andersson | 7/10 | 5556 days | 1% |
| Bob Adams | 10/10 | 5563 days | 1% |
| John | 8/10 | 5563 days | 1% |
| Katie Nicol | 10/10 | 5564 days | 1% |
| Martin Current | 9/10 | 5566 days | 1% |
| Teum and Orselien | 8/10 | 5567 days | 1% |
| Vanderhorst | 8/10 | 5567 days | 1% |
| John Price | 9/10 | 5569 days | 1% |
| Doris Schollenberger | 10/10 | 5569 days | 1% |
| Phil Hunter | 9/10 | 5570 days | 1% |
| Chris | 8/10 | 5571 days | 1% |
| Gordon Daniels | 8/10 | 5574 days | 1% |
| Hull | 9/10 | 5574 days | 1% |
| Lizzie | 10/10 | 5641 days | 1% |
| allesca | 10/10 | 5671 days | 1% |
| M Schram | 8/10 | 5834 days | 1% |
| Versteeg | 9/10 | 5837 days | 1% |
| Lomas | 10/10 | 5846 days | 1% |
| Maureen | 10/10 | 5850 days | 1% |
| Amy | 9/10 | 5855 days | 1% |
| Don & Geraldine | 10/10 | 5891 days | 1% |
| Hans and Astrid | 10/10 | 5893 days | 1% |
| Agnes | 10/10 | 5895 days | 1% |
| maggie Webster | 10/10 | 5902 days | 1% |
| Keita-Karen Buchanan | 10/10 | 5902 days | 1% |
| Lars Taarnhoej | 7/10 | 5902 days | 1% |
| markus Brandenberger | 10/10 | 5903 days | 1% |
| Jvjm Family | 9/10 | 5904 days | 1% |
| David B | 7/10 | 5911 days | 1% |
| Margaret O'Sullivan | 8/10 | 5911 days | 1% |
| Chris el capitan | 9/10 | 5921 days | 1% |
| John Cox | 9/10 | 5922 days | 1% |
| Muller Weissert | 8/10 | 5923 days | 1% |
| Brian Morris | 9/10 | 5925 days | 1% |
| Jobbs | 10/10 | 5925 days | 1% |
| Maria Newton | 9/10 | 5926 days | 1% |
| Dieter Groscurth | 8/10 | 5926 days | 1% |
| Gordon and Joyce | 9/10 | 5926 days | 1% |
| Remko Ebbens | 9/10 | 5929 days | 1% |
| Thijs Schoemaker | 8/10 | 5930 days | 1% |
| Armand | 5/10 | 5930 days | 1% |
| Ferth | 10/10 | 5930 days | 1% |
| J Kempeneers | 10/10 | 5930 days | 1% |
| Thea X | 5/10 | 5939 days | 1% |
| Keith Wilde | 10/10 | 5939 days | 1% |
| Dick Rosman | 9/10 | 5940 days | 1% |
| Terry Phillips | 5/10 | 5941 days | 1% |
| Jules | 8/10 | 5941 days | 1% |
| Carl Diehl | 9/10 | 5942 days | 1% |
| Paul Schoepfer | 9/10 | 5942 days | 1% |
| Uwe Rieper | 10/10 | 5943 days | 1% |
| Yvonne Ing | 10/10 | 5943 days | 1% |
| Diane Chapple | 9/10 | 5943 days | 1% |
| wannab | 9/10 | 5944 days | 1% |
| Kevin and Teresa | 9/10 | 5944 days | 1% |
| Christiane Lindenberg | 9/10 | 5953 days | 1% |
| Nigel Armstrong | 9/10 | 5955 days | 1% |
| Buss | 10/10 | 5957 days | 1% |
| John J | 9/10 | 5958 days | 1% |
| Heinrich Hax | 10/10 | 5964 days | 1% |
| marcusba | 8/10 | 5987 days | 1% |
| tanh | 9/10 | 5991 days | 1% |
| mariak | 7/10 | 5992 days | 1% |
| Silvana Thom | 10/10 | 6016 days | 1% |
| Wolfgang Dittrich | 10/10 | 6016 days | 1% |
| Chris Bulman | 10/10 | 6017 days | 1% |
| andyge | 8/10 | 6036 days | 1% |
| Ritag | 9/10 | 6122 days | 1% |
| regw | 10/10 | 6126 days | 1% |
| Cate | 9/10 | 6249 days | 1% |
| ginekek | 9/10 | 6250 days | 1% |
| geoffelizabeth | 9/10 | 6250 days | 1% |
| mikestep | 9/10 | 6250 days | 1% |
| EllenorO | 10/10 | 6250 days | 1% |
| Van Lent | 9/10 | 6251 days | 1% |
| Anna | 10/10 | 6251 days | 1% |
| Mike | 9/10 | 6254 days | 1% |
| Richard | 10/10 | 6259 days | 1% |
| Michael Walsall | 10/10 | 6260 days | 1% |
| AstridVG | 8/10 | 6266 days | 1% |
| Christine | 9/10 | 6266 days | 1% |
| Peter | 9/10 | 6266 days | 1% |
| DimitriD | 5/10 | 6267 days | 1% |
| Kitty | 9/10 | 6267 days | 1% |
| Max | 10/10 | 6269 days | 1% |
| Andy Baker | 9/10 | 6270 days | 1% |
| Francesca Sabat | 8/10 | 6272 days | 1% |
| Robert | 10/10 | 6280 days | 1% |
| Melissa Gillespie | 10/10 | 6281 days | 1% |
| Hetty | 9/10 | 6281 days | 1% |
| Charles | 7/10 | 6282 days | 1% |
| Byleveld | 8/10 | 6283 days | 1% |
| JoseB | 8/10 | 6284 days | 1% |
| MrHebbard | 10/10 | 6284 days | 1% |
| ChristineM | 10/10 | 6284 days | 1% |
| Elrik frau | 10/10 | 6284 days | 1% |
| Louise | 9/10 | 6290 days | 1% |
| Douglas | 9/10 | 6291 days | 1% |
| CSander | 9/10 | 6308 days | 1% |
| Patricia | 8/10 | 6318 days | 1% |
| Dijk | 8/10 | 6322 days | 1% |
| Josefine | 10/10 | 6322 days | 1% |
| Ducolq | 5/10 | 6322 days | 1% |
| Jacques | 8/10 | 6323 days | 1% |
| Carina | 8/10 | 6328 days | 1% |
| Michael | 9/10 | 6360 days | 1% |
| silvia | 8/10 | 6362 days | 1% |
| Anouk | 8/10 | 6362 days | 1% |
| Mat | 9/10 | 6367 days | 1% |
| Paul | 8/10 | 6413 days | 1% |
| Helga | 9/10 | 6424 days | 1% |
| Mikel | 9/10 | 6489 days | 1% |
| Christine | 6/10 | 6498 days | 1% |
| Jim Summers | 9/10 | 6498 days | 1% |
| Franz | 7/10 | 6621 days | 1% |
| Linda and Peter | 10/10 | 6629 days | 1% |
| Mike and Judy | 8/10 | 6630 days | 1% |
| Methers | 9/10 | 6630 days | 1% |
| Denise | 10/10 | 6633 days | 1% |
| Kavanagh | 8/10 | 6633 days | 1% |
| De Wijn | 8/10 | 6636 days | 1% |
| Lisa Jones | 9/10 | 6637 days | 1% |
| Christian | 9/10 | 6637 days | 1% |
| Soren Danning | 8/10 | 6637 days | 1% |
| Jones | 10/10 | 6641 days | 1% |
| Orla Hansen | 10/10 | 6642 days | 1% |
| Bauer | 10/10 | 6648 days | 1% |
| Aharon | 10/10 | 6648 days | 1% |
| D.A. Mulder | 9/10 | 6649 days | 1% |
| Jurg Meister | 8/10 | 6650 days | 1% |
| Sally and David Wallis | 10/10 | 6650 days | 1% |
| Knol | 9/10 | 6651 days | 1% |
| Sue Randall | 8/10 | 6654 days | 1% |
| Cole Penelope | 10/10 | 6654 days | 1% |
| Blenkoe | 6/10 | 6655 days | 1% |
| Erwin de Kleijn | 8/10 | 6655 days | 1% |
| Thomas | 9/10 | 6664 days | 1% |
| Bex | 10/10 | 6677 days | 1% |
| Van Hoof | 9/10 | 6690 days | 1% |
| Tim | 10/10 | 6690 days | 1% |
| Gabriel Faber | 9/10 | 6725 days | 1% |
| Jonkers | 9/10 | 6727 days | 1% |
| Edwin | 10/10 | 6731 days | 1% |
| Lyn Saxon | 10/10 | 6735 days | 1% |
| Wendy Williams | 10/10 | 6742 days | 1% |
| Hans Knappmann | 10/10 | 6852 days | 1% |
| Phillipa | 10/10 | 6960 days | 1% |
| Stefan&Gerte | 9/10 | 6974 days | 1% |
| Cat | 9/10 | 6980 days | 1% |
| TeamFlorida | 10/10 | 6987 days | 1% |
| Jo | 9/10 | 6987 days | 1% |
| Fenke | 9/10 | 6992 days | 1% |
| Bas | 9/10 | 6992 days | 1% |
| Martin Smith | 9/10 | 6997 days | 1% |
| John Beirne | 9/10 | 7004 days | 1% |
| Palle | 9/10 | 7009 days | 1% |
| Anna | 9/10 | 7009 days | 1% |
| Svenja | 10/10 | 7015 days | 1% |
| Shirely | 10/10 | 7015 days | 1% |
| Rogier | 8/10 | 7016 days | 1% |
| Wendy | 8/10 | 7020 days | 1% |
| Kerry | 10/10 | 7025 days | 1% |
| Henrich | 10/10 | 7025 days | 1% |
| Messing | 10/10 | 7028 days | 1% |
| Rolf Kruger | 10/10 | 7028 days | 1% |
| Ian | 8/10 | 7032 days | 1% |
| Peter | 9/10 | 7032 days | 1% |
| Brian | 10/10 | 7032 days | 1% |
Adjustments
Several adjustments to the weighted average are added to improve relevancy and credibility. These adjustments apply equally to all experiences that meet the criteria.
Sample Size Adjustment
No Adjustment
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 Doubtful Sound Day Cruise experience has plenty of reviews and does not meet the criteria for any adjustment.
Recent Reviews Adjustment
-1.20% Adjustment
There may be an adjustment if this experience hasn't received any reviews within the last 88 days. However the Doubtful Sound Day Cruise 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 200 days. Due to the seasonal nature of many businesses, this adjustment is applied dynamically throughout the year.
The Doubtful Sound Day Cruise experience has been adjusted for 84 days. Adjustments are according to the following table.
| Days | Adjustment |
|---|---|
| … | … |
| 81 | -1.16% |
| 82 | -1.18% |
| 83 | -1.19% |
| 84 | -1.20% |
| 85 | -1.22% |
| 86 | -1.23% |
| 87 | -1.25% |
| … | … |
Balancing Adjustment
0.89% Adjustment
Every experience's review score is adjusted to balance out the disproportional number of negative reviews that are contributed.
You won't be surprised to learn that disgruntled customers are more likely to leave a review than happy ones. They are motivated to share their experience and warn others. We consider this a good thing and it's why reading the reviews is important. However we've learned it can misrepresent the experience in a more overall sense.
We apply a balancing adjustment to counteract this effect and ensure the ranking score is a more fair representation of the experience. This adjustment is applied equally to all experiences.
Final Ranking Score
92%
The final ranking score once any adjustments, ratings, and rounding has been applied. This value is recalculated each day and a short rolling average is applied. Therefore it may not be precisely accurate based on the other values presented.