Kia ora, 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 Dolphin Encounter Kaikoura.
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.
Dolphin Encounter Kaikoura
Valid Reviews
256 Valid Reviews
The Dolphin Encounter Kaikoura experience has a total of 258 reviews. There are 256 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 256 valid reviews:
| Rating | Count | Percentage | |
|---|---|---|---|
| 10/10 | 136 |
|
53% |
| 9/10 | 75 |
|
29% |
| 8/10 | 31 |
|
12% |
| 7/10 | 13 |
|
5% |
| 6/10 | 1 |
|
0% |
| 5/10 | 0 |
|
0% |
| 4/10 | 0 |
|
0% |
| 3/10 | 0 |
|
0% |
| 2/10 | 0 |
|
0% |
| 1/10 | 0 |
|
0% |
92.97% Average
The raw data average (mean) for all the Dolphin Encounter Kaikoura valid reviews is 92.97% and is based on 256 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
210 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 256 valid reviews, the experience has 210 face-to-face reviews collected during interviews by our team.
Below is the distribution of ratings for the 210 face-to-face reviews:
| Rating | Count | Percentage | |
|---|---|---|---|
| 10/10 | 104 |
|
50% |
| 9/10 | 66 |
|
31% |
| 8/10 | 30 |
|
14% |
| 7/10 | 10 |
|
5% |
| 6/10 | 0 |
|
0% |
| 5/10 | 0 |
|
0% |
| 4/10 | 0 |
|
0% |
| 3/10 | 0 |
|
0% |
| 2/10 | 0 |
|
0% |
| 1/10 | 0 |
|
0% |
92.57% Average
The raw data average (mean) for all the Dolphin Encounter Kaikoura face-to-face reviews is 92.57% and is based on 210 face-to-face reviews. This value is not used to calculate the ranking score and it only provided here for comparison purposes.
Weighted Average
92.74%
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 |
|---|---|---|---|
| Wil | 9/10 | 893 days | 100% |
| Lisa | 10/10 | 1592 days | 14% |
| Michael Holm | 9/10 | 3109 days | 4% |
| Stefan Zink | 10/10 | 3361 days | 3% |
| Fentrup | 9/10 | 3367 days | 3% |
| Katharina Koch | 10/10 | 3371 days | 3% |
| Aurelie and Ben Marie | 9/10 | 3373 days | 3% |
| Sebastian Braun | 9/10 | 3461 days | 3% |
| Joanne Woo | 10/10 | 3478 days | 3% |
| Chris | 6/10 | 3509 days | 2% |
| Olivier Reculeau | 10/10 | 3695 days | 2% |
| Susanne Breudel | 10/10 | 3700 days | 2% |
| Josh Legge | 10/10 | 3708 days | 2% |
| Daniel Weber | 9/10 | 3710 days | 2% |
| Virginia Fradin | 10/10 | 3714 days | 2% |
| Olivier Anciaux | 9/10 | 3717 days | 2% |
| Wendy van Boom | 10/10 | 3717 days | 2% |
| Bas Hoogteijling | 10/10 | 3720 days | 2% |
| Mira Huckfield | 10/10 | 3730 days | 2% |
| Maike Santelmann | 10/10 | 3742 days | 2% |
| Levin Stuers | 10/10 | 3747 days | 2% |
| magdalena gomez haedo | 9/10 | 3750 days | 2% |
| Lucca Weisbender | 10/10 | 3752 days | 2% |
| Anna Scholten | 10/10 | 3753 days | 2% |
| Nils Kissel | 10/10 | 3763 days | 2% |
| Madita and Lisann | 10/10 | 3799 days | 1% |
| sanneke tangel | 10/10 | 3805 days | 1% |
| Georgia Coleman | 10/10 | 3805 days | 1% |
| Virgil Spruit | 8/10 | 3809 days | 1% |
| Xue Rong Kok | 7/10 | 3814 days | 1% |
| Anthony Jacobs | 10/10 | 3936 days | 1% |
| Sofie Jebsen | 10/10 | 4079 days | 0% |
| Tobias | 10/10 | 4079 days | 0% |
| Annika Funk | 10/10 | 4115 days | 0% |
| Dawn Mulligan | 10/10 | 4131 days | 0% |
| Christophe Scieszka | 10/10 | 4148 days | 0% |
| Hubert | 8/10 | 4188 days | 0% |
| Ondrej Stepanek | 8/10 | 4424 days | 1% |
| Boneschova Jarka | 10/10 | 4424 days | 1% |
| Heike Heller | 10/10 | 4433 days | 1% |
| Andreas Mouteiro | 9/10 | 4433 days | 1% |
| Josefin Lind | 10/10 | 4434 days | 1% |
| Herman Holmgist | 10/10 | 4434 days | 1% |
| Felicitas | 9/10 | 4456 days | 1% |
| Antoine | 8/10 | 4464 days | 1% |
| Mara K | 10/10 | 4483 days | 1% |
| Emilie Chanbon | 10/10 | 4486 days | 1% |
| Alexis Redor | 10/10 | 4486 days | 1% |
| Julia Amberger | 8/10 | 4505 days | 1% |
| Annalina Drebald | 8/10 | 4505 days | 1% |
| balesdent | 9/10 | 4511 days | 1% |
| Alineet Gautier | 10/10 | 4514 days | 1% |
| Annika Schmidt | 10/10 | 4794 days | 1% |
| Patrick Stoeit | 10/10 | 4794 days | 1% |
| Audrey Ripoche | 9/10 | 4796 days | 1% |
| Rey Germain | 9/10 | 4796 days | 1% |
| Christofer Tonn | 10/10 | 4806 days | 1% |
| Ann Furlong | 10/10 | 4814 days | 1% |
| Trudy Ryan | 8/10 | 4814 days | 1% |
| Jill Fischer | 10/10 | 4820 days | 1% |
| Kim | 10/10 | 4820 days | 1% |
| Francois Marchar | 9/10 | 4830 days | 1% |
| Jan Zimmerman | 10/10 | 4835 days | 1% |
| Elvin Teo | 10/10 | 4848 days | 1% |
| Rob | 9/10 | 4896 days | 1% |
| Andreas Garbin | 10/10 | 4898 days | 1% |
| Joanna | 9/10 | 4916 days | 1% |
| Mellow | 10/10 | 4940 days | 1% |
| whalelover88 | 10/10 | 5093 days | 1% |
| Jos Schieveen | 8/10 | 5164 days | 1% |
| Goran Backlund | 9/10 | 5170 days | 1% |
| Nathan Sait | 10/10 | 5177 days | 1% |
| Toby Clark | 10/10 | 5177 days | 1% |
| Maxine Gilman | 10/10 | 5180 days | 1% |
| Harald | 9/10 | 5194 days | 1% |
| Dominik Langenegger | 9/10 | 5196 days | 1% |
| Rebecca Richardson | 9/10 | 5196 days | 1% |
| Andrew Powell | 9/10 | 5196 days | 1% |
| Peter Field | 10/10 | 5196 days | 1% |
| Eric Lombaard | 8/10 | 5197 days | 1% |
| Nicholas Prakenhammar | 10/10 | 5198 days | 1% |
| Peter Wall | 7/10 | 5198 days | 1% |
| Verne Heath | 8/10 | 5199 days | 1% |
| John O'Donnell | 10/10 | 5200 days | 1% |
| Paul Fairbrass | 10/10 | 5207 days | 1% |
| Frank Krivauek | 10/10 | 5208 days | 1% |
| Rocco Christian | 7/10 | 5208 days | 1% |
| Kurt & Noemi Buhler | 7/10 | 5209 days | 1% |
| Therese | 7/10 | 5212 days | 1% |
| Katie K | 9/10 | 5223 days | 1% |
| CMJ | 10/10 | 5245 days | 1% |
| Jacqueline | 10/10 | 5276 days | 1% |
| Marc & Pauline | 9/10 | 5282 days | 1% |
| Kevin & Chris | 9/10 | 5283 days | 1% |
| Robin & Sandra Dijke | 9/10 | 5285 days | 1% |
| Laura McCusker | 8/10 | 5292 days | 1% |
| Dexter | 10/10 | 5490 days | 1% |
| Jasmin Loeffler | 10/10 | 5496 days | 1% |
| Natascha Rachel | 10/10 | 5496 days | 1% |
| Res Kormann | 10/10 | 5509 days | 1% |
| Sarah James | 10/10 | 5519 days | 1% |
| Nick Taylor | 10/10 | 5519 days | 1% |
| Nicola Young | 10/10 | 5519 days | 1% |
| Stefan Elsenbruch | 9/10 | 5524 days | 1% |
| Stefanie | 7/10 | 5534 days | 1% |
| Koen Vanlede | 10/10 | 5537 days | 1% |
| Van Vliet | 8/10 | 5538 days | 1% |
| Vanessa Vogel | 10/10 | 5541 days | 1% |
| Marcel Camsch | 9/10 | 5543 days | 1% |
| Keely & Mark Haynes | 10/10 | 5544 days | 1% |
| Svea Sauter | 10/10 | 5544 days | 1% |
| henriket | 10/10 | 5545 days | 1% |
| Amanda Wells | 10/10 | 5545 days | 1% |
| K & J Overton | 9/10 | 5545 days | 1% |
| Jerry & Floon | 9/10 | 5549 days | 1% |
| Bartl | 10/10 | 5549 days | 1% |
| travellingfamilyof6 | 10/10 | 5551 days | 1% |
| WeddingMaven | 10/10 | 5551 days | 1% |
| Lieve Verdonck | 8/10 | 5552 days | 1% |
| Victoria Purver | 8/10 | 5554 days | 1% |
| Thelia Beament | 9/10 | 5554 days | 1% |
| Edwards | 9/10 | 5558 days | 1% |
| Mark Irwin | 9/10 | 5562 days | 1% |
| Agnes McMillan | 10/10 | 5563 days | 1% |
| Leslie | 9/10 | 5563 days | 1% |
| Selina Mueller | 10/10 | 5565 days | 1% |
| Jill Dean | 10/10 | 5566 days | 1% |
| Chloe Finster | 10/10 | 5566 days | 1% |
| Vanderhorst | 9/10 | 5567 days | 1% |
| Judith K. | 10/10 | 5569 days | 1% |
| Amanda Wallace | 9/10 | 5569 days | 1% |
| Mark Aarts | 10/10 | 5570 days | 1% |
| Forestal Youri | 9/10 | 5571 days | 1% |
| Dave and Lin Mungham | 10/10 | 5572 days | 1% |
| Jane Hancock | 10/10 | 5574 days | 1% |
| Stephi | 10/10 | 5579 days | 1% |
| Amanda | 10/10 | 5579 days | 1% |
| Mick Doherty | 9/10 | 5610 days | 1% |
| hendrik king | 7/10 | 5610 days | 1% |
| Shoe | 10/10 | 5641 days | 1% |
| marcvergroesen | 9/10 | 5855 days | 1% |
| Jenny Leyland | 9/10 | 5855 days | 1% |
| MarcyMark | 10/10 | 5885 days | 1% |
| katrina Marshall | 10/10 | 5902 days | 1% |
| Von | 9/10 | 5916 days | 1% |
| Judith | 8/10 | 5922 days | 1% |
| Doris Resch | 10/10 | 5922 days | 1% |
| Sheila Morgan | 10/10 | 5925 days | 1% |
| Maria Newton | 9/10 | 5926 days | 1% |
| Faller | 10/10 | 5939 days | 1% |
| Wim Van Gastel | 8/10 | 5942 days | 1% |
| Laura Walters | 9/10 | 5943 days | 1% |
| Chance McGuire | 10/10 | 5944 days | 1% |
| cees juffermans | 9/10 | 5957 days | 1% |
| Markus | 10/10 | 5960 days | 1% |
| Grainne Ahern | 10/10 | 5975 days | 1% |
| sutuckey | 10/10 | 5975 days | 1% |
| Honeymooners | 10/10 | 5975 days | 1% |
| sophiep | 9/10 | 5990 days | 1% |
| chuckchallenger | 10/10 | 6006 days | 1% |
| mdarras | 9/10 | 6010 days | 1% |
| joramv | 9/10 | 6010 days | 1% |
| Michelle Kraemer | 10/10 | 6013 days | 1% |
| Kimberly Skyes | 10/10 | 6013 days | 1% |
| Ruth Colmer | 9/10 | 6016 days | 1% |
| maleta | 8/10 | 6027 days | 1% |
| Simon_and_Jane_OZ | 9/10 | 6220 days | 1% |
| JoF | 10/10 | 6242 days | 1% |
| Christian Kamm | 10/10 | 6247 days | 1% |
| Michael Maddams | 7/10 | 6248 days | 1% |
| Joanna Harrnon | 10/10 | 6249 days | 1% |
| Sarah | 8/10 | 6249 days | 1% |
| David | 10/10 | 6250 days | 1% |
| jjakkeren | 9/10 | 6250 days | 1% |
| Alanna | 10/10 | 6251 days | 1% |
| ElissaH | 10/10 | 6252 days | 1% |
| Andrew Smith | 9/10 | 6256 days | 1% |
| Jean | 10/10 | 6266 days | 1% |
| CarinaB1 | 10/10 | 6271 days | 1% |
| Lindsey | 9/10 | 6281 days | 1% |
| Lisa | 10/10 | 6286 days | 1% |
| Laura | 8/10 | 6289 days | 1% |
| kiwibrit86 | 9/10 | 6291 days | 1% |
| Visken | 10/10 | 6293 days | 1% |
| Christina | 10/10 | 6298 days | 1% |
| RachaelO | 10/10 | 6300 days | 1% |
| Marianne | 10/10 | 6300 days | 1% |
| Peppa | 10/10 | 6300 days | 1% |
| Jackie | 9/10 | 6314 days | 1% |
| Patrick | 9/10 | 6314 days | 1% |
| Carla | 8/10 | 6316 days | 1% |
| Keith | 10/10 | 6321 days | 1% |
| Saskia | 9/10 | 6322 days | 1% |
| Patrick | 10/10 | 6326 days | 1% |
| Charlie | 9/10 | 6330 days | 1% |
| Ten | 10/10 | 6330 days | 1% |
| Kevin Dangerfield | 10/10 | 6339 days | 1% |
| Graham | 9/10 | 6354 days | 1% |
| David | 10/10 | 6363 days | 1% |
| Eveline | 10/10 | 6363 days | 1% |
| Mette | 10/10 | 6370 days | 1% |
| Rowan | 9/10 | 6395 days | 1% |
| Hanna | 10/10 | 6395 days | 1% |
| Sally Walker | 10/10 | 6401 days | 1% |
| abby | 10/10 | 6406 days | 1% |
| Paul | 10/10 | 6417 days | 1% |
| Peter | 10/10 | 6425 days | 1% |
| Anna | 10/10 | 6447 days | 1% |
| Liz | 9/10 | 6456 days | 1% |
| Laura | 8/10 | 6456 days | 1% |
| Amy Shields | 7/10 | 6460 days | 1% |
| Erin | 9/10 | 6468 days | 1% |
| George Burgas | 7/10 | 6474 days | 1% |
| Sharon Curly | 7/10 | 6482 days | 1% |
| Peddy | 8/10 | 6485 days | 1% |
| Christine | 9/10 | 6498 days | 1% |
| Charlie Bond | 8/10 | 6531 days | 1% |
| SandyS | 10/10 | 6585 days | 1% |
| BexStar | 10/10 | 6598 days | 1% |
| Galen | 9/10 | 6616 days | 1% |
| Monica Black | 10/10 | 6616 days | 1% |
| Denise | 10/10 | 6633 days | 1% |
| Ria | 9/10 | 6637 days | 1% |
| Christian | 7/10 | 6637 days | 1% |
| Wiebke | 9/10 | 6641 days | 1% |
| Phil Connelly | 9/10 | 6642 days | 1% |
| Amanda | 9/10 | 6648 days | 1% |
| Erwin de Kleijn | 9/10 | 6655 days | 1% |
| Nick | 10/10 | 6664 days | 1% |
| John | 9/10 | 6664 days | 1% |
| Sandra Gustafson | 10/10 | 6692 days | 1% |
| Jo | 10/10 | 6692 days | 1% |
| Helena | 10/10 | 6693 days | 1% |
| Seldam | 8/10 | 6698 days | 1% |
| Andrew Purdam | 7/10 | 6706 days | 1% |
| Gerber Liselotte | 10/10 | 6724 days | 1% |
| Gabriela Herger | 8/10 | 6732 days | 1% |
| Jane Coleman | 8/10 | 6735 days | 1% |
| Wendy Williams | 9/10 | 6742 days | 1% |
| Claire | 8/10 | 6966 days | 1% |
| Will | 9/10 | 6966 days | 1% |
| JanKovar | 10/10 | 6968 days | 1% |
| Justin | 10/10 | 6971 days | 1% |
| Beth | 9/10 | 6977 days | 1% |
| Hanneke | 9/10 | 6978 days | 1% |
| Cat | 8/10 | 6980 days | 1% |
| MartinTrenker | 9/10 | 6986 days | 1% |
| Janneke | 10/10 | 6987 days | 1% |
| Renee | 9/10 | 6990 days | 1% |
| Elke | 8/10 | 7005 days | 1% |
| Malon | 10/10 | 7006 days | 1% |
| Ralph | 10/10 | 7015 days | 1% |
| Lucy | 10/10 | 7015 days | 1% |
| Gordon | 8/10 | 7027 days | 1% |
| Beate | 9/10 | 7028 days | 1% |
| MartinJago | 8/10 | 7039 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 Dolphin Encounter Kaikoura experience has plenty of reviews and does not meet the criteria for any adjustment.
Recent Reviews Adjustment
-2.87% Adjustment
There may be an adjustment if this experience hasn't received any reviews within the last 88 days. However the Dolphin Encounter Kaikoura 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 Dolphin Encounter Kaikoura experience has been adjusted for 200 days. Adjustments are according to the following table.
| Days | Adjustment |
|---|---|
| … | … |
| 197 | -2.82% |
| 198 | -2.84% |
| 199 | -2.85% |
| 200 | -2.87% |
| 201 | -2.88% |
| 202 | -2.90% |
| 203 | -2.91% |
| … | … |
Balancing Adjustment
1.02% 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
91%
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.