Hi, 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
93.11%
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 | 384 days | 100% |
| Lisa | 10/10 | 1083 days | 40% |
| Michael Holm | 9/10 | 2600 days | 4% |
| Stefan Zink | 10/10 | 2852 days | 3% |
| Fentrup | 9/10 | 2858 days | 3% |
| Katharina Koch | 10/10 | 2862 days | 3% |
| Aurelie and Ben Marie | 9/10 | 2864 days | 3% |
| Sebastian Braun | 9/10 | 2952 days | 3% |
| Joanne Woo | 10/10 | 2969 days | 3% |
| Chris | 6/10 | 3000 days | 2% |
| Olivier Reculeau | 10/10 | 3186 days | 2% |
| Susanne Breudel | 10/10 | 3191 days | 2% |
| Josh Legge | 10/10 | 3199 days | 2% |
| Daniel Weber | 9/10 | 3201 days | 2% |
| Virginia Fradin | 10/10 | 3205 days | 2% |
| Olivier Anciaux | 9/10 | 3208 days | 2% |
| Wendy van Boom | 10/10 | 3208 days | 2% |
| Bas Hoogteijling | 10/10 | 3211 days | 2% |
| Mira Huckfield | 10/10 | 3221 days | 2% |
| Maike Santelmann | 10/10 | 3233 days | 2% |
| Levin Stuers | 10/10 | 3238 days | 2% |
| magdalena gomez haedo | 9/10 | 3241 days | 2% |
| Lucca Weisbender | 10/10 | 3243 days | 2% |
| Anna Scholten | 10/10 | 3244 days | 2% |
| Nils Kissel | 10/10 | 3254 days | 2% |
| Madita and Lisann | 10/10 | 3290 days | 2% |
| sanneke tangel | 10/10 | 3296 days | 2% |
| Georgia Coleman | 10/10 | 3296 days | 2% |
| Virgil Spruit | 8/10 | 3300 days | 2% |
| Xue Rong Kok | 7/10 | 3305 days | 2% |
| Anthony Jacobs | 10/10 | 3427 days | 2% |
| Sofie Jebsen | 10/10 | 3570 days | 2% |
| Tobias | 10/10 | 3570 days | 2% |
| Annika Funk | 10/10 | 3606 days | 2% |
| Dawn Mulligan | 10/10 | 3622 days | 2% |
| Christophe Scieszka | 10/10 | 3639 days | 2% |
| Hubert | 8/10 | 3679 days | 1% |
| Ondrej Stepanek | 8/10 | 3915 days | 1% |
| Boneschova Jarka | 10/10 | 3915 days | 1% |
| Heike Heller | 10/10 | 3924 days | 1% |
| Andreas Mouteiro | 9/10 | 3924 days | 1% |
| Josefin Lind | 10/10 | 3925 days | 1% |
| Herman Holmgist | 10/10 | 3925 days | 1% |
| Felicitas | 9/10 | 3947 days | 1% |
| Antoine | 8/10 | 3955 days | 1% |
| Mara K | 10/10 | 3974 days | 1% |
| Emilie Chanbon | 10/10 | 3977 days | 1% |
| Alexis Redor | 10/10 | 3977 days | 1% |
| Julia Amberger | 8/10 | 3996 days | 1% |
| Annalina Drebald | 8/10 | 3996 days | 1% |
| balesdent | 9/10 | 4002 days | 1% |
| Alineet Gautier | 10/10 | 4005 days | 1% |
| Annika Schmidt | 10/10 | 4285 days | 0% |
| Patrick Stoeit | 10/10 | 4285 days | 0% |
| Audrey Ripoche | 9/10 | 4287 days | 0% |
| Rey Germain | 9/10 | 4287 days | 0% |
| Christofer Tonn | 10/10 | 4297 days | 0% |
| Ann Furlong | 10/10 | 4305 days | 0% |
| Trudy Ryan | 8/10 | 4305 days | 0% |
| Jill Fischer | 10/10 | 4311 days | 0% |
| Kim | 10/10 | 4311 days | 0% |
| Francois Marchar | 9/10 | 4321 days | 0% |
| Jan Zimmerman | 10/10 | 4326 days | 0% |
| Elvin Teo | 10/10 | 4339 days | 0% |
| Rob | 9/10 | 4387 days | 1% |
| Andreas Garbin | 10/10 | 4389 days | 1% |
| Joanna | 9/10 | 4407 days | 1% |
| Mellow | 10/10 | 4431 days | 1% |
| whalelover88 | 10/10 | 4584 days | 1% |
| Jos Schieveen | 8/10 | 4655 days | 1% |
| Goran Backlund | 9/10 | 4661 days | 1% |
| Nathan Sait | 10/10 | 4668 days | 1% |
| Toby Clark | 10/10 | 4668 days | 1% |
| Maxine Gilman | 10/10 | 4671 days | 1% |
| Harald | 9/10 | 4685 days | 1% |
| Dominik Langenegger | 9/10 | 4687 days | 1% |
| Rebecca Richardson | 9/10 | 4687 days | 1% |
| Andrew Powell | 9/10 | 4687 days | 1% |
| Peter Field | 10/10 | 4687 days | 1% |
| Eric Lombaard | 8/10 | 4688 days | 1% |
| Nicholas Prakenhammar | 10/10 | 4689 days | 1% |
| Peter Wall | 7/10 | 4689 days | 1% |
| Verne Heath | 8/10 | 4690 days | 1% |
| John O'Donnell | 10/10 | 4691 days | 1% |
| Paul Fairbrass | 10/10 | 4698 days | 1% |
| Frank Krivauek | 10/10 | 4699 days | 1% |
| Rocco Christian | 7/10 | 4699 days | 1% |
| Kurt & Noemi Buhler | 7/10 | 4700 days | 1% |
| Therese | 7/10 | 4703 days | 1% |
| Katie K | 9/10 | 4714 days | 1% |
| CMJ | 10/10 | 4736 days | 1% |
| Jacqueline | 10/10 | 4767 days | 1% |
| Marc & Pauline | 9/10 | 4773 days | 1% |
| Kevin & Chris | 9/10 | 4774 days | 1% |
| Robin & Sandra Dijke | 9/10 | 4776 days | 1% |
| Laura McCusker | 8/10 | 4783 days | 1% |
| Dexter | 10/10 | 4981 days | 1% |
| Jasmin Loeffler | 10/10 | 4987 days | 1% |
| Natascha Rachel | 10/10 | 4987 days | 1% |
| Res Kormann | 10/10 | 5000 days | 1% |
| Sarah James | 10/10 | 5010 days | 1% |
| Nick Taylor | 10/10 | 5010 days | 1% |
| Nicola Young | 10/10 | 5010 days | 1% |
| Stefan Elsenbruch | 9/10 | 5015 days | 1% |
| Stefanie | 7/10 | 5025 days | 1% |
| Koen Vanlede | 10/10 | 5028 days | 1% |
| Van Vliet | 8/10 | 5029 days | 1% |
| Vanessa Vogel | 10/10 | 5032 days | 1% |
| Marcel Camsch | 9/10 | 5034 days | 1% |
| Keely & Mark Haynes | 10/10 | 5035 days | 1% |
| Svea Sauter | 10/10 | 5035 days | 1% |
| henriket | 10/10 | 5036 days | 1% |
| Amanda Wells | 10/10 | 5036 days | 1% |
| K & J Overton | 9/10 | 5036 days | 1% |
| Jerry & Floon | 9/10 | 5040 days | 1% |
| Bartl | 10/10 | 5040 days | 1% |
| travellingfamilyof6 | 10/10 | 5042 days | 1% |
| WeddingMaven | 10/10 | 5042 days | 1% |
| Lieve Verdonck | 8/10 | 5043 days | 1% |
| Victoria Purver | 8/10 | 5045 days | 1% |
| Thelia Beament | 9/10 | 5045 days | 1% |
| Edwards | 9/10 | 5049 days | 1% |
| Mark Irwin | 9/10 | 5053 days | 1% |
| Agnes McMillan | 10/10 | 5054 days | 1% |
| Leslie | 9/10 | 5054 days | 1% |
| Selina Mueller | 10/10 | 5056 days | 1% |
| Jill Dean | 10/10 | 5057 days | 1% |
| Chloe Finster | 10/10 | 5057 days | 1% |
| Vanderhorst | 9/10 | 5058 days | 1% |
| Judith K. | 10/10 | 5060 days | 1% |
| Amanda Wallace | 9/10 | 5060 days | 1% |
| Mark Aarts | 10/10 | 5061 days | 1% |
| Forestal Youri | 9/10 | 5062 days | 1% |
| Dave and Lin Mungham | 10/10 | 5063 days | 1% |
| Jane Hancock | 10/10 | 5065 days | 1% |
| Stephi | 10/10 | 5070 days | 1% |
| Amanda | 10/10 | 5070 days | 1% |
| Mick Doherty | 9/10 | 5101 days | 1% |
| hendrik king | 7/10 | 5101 days | 1% |
| Shoe | 10/10 | 5132 days | 1% |
| marcvergroesen | 9/10 | 5346 days | 1% |
| Jenny Leyland | 9/10 | 5346 days | 1% |
| MarcyMark | 10/10 | 5376 days | 1% |
| katrina Marshall | 10/10 | 5393 days | 1% |
| Von | 9/10 | 5407 days | 1% |
| Judith | 8/10 | 5413 days | 1% |
| Doris Resch | 10/10 | 5413 days | 1% |
| Sheila Morgan | 10/10 | 5416 days | 1% |
| Maria Newton | 9/10 | 5417 days | 1% |
| Faller | 10/10 | 5430 days | 1% |
| Wim Van Gastel | 8/10 | 5433 days | 1% |
| Laura Walters | 9/10 | 5434 days | 1% |
| Chance McGuire | 10/10 | 5435 days | 1% |
| cees juffermans | 9/10 | 5448 days | 1% |
| Markus | 10/10 | 5451 days | 1% |
| Grainne Ahern | 10/10 | 5466 days | 1% |
| sutuckey | 10/10 | 5466 days | 1% |
| Honeymooners | 10/10 | 5466 days | 1% |
| sophiep | 9/10 | 5481 days | 1% |
| chuckchallenger | 10/10 | 5497 days | 1% |
| mdarras | 9/10 | 5501 days | 1% |
| joramv | 9/10 | 5501 days | 1% |
| Michelle Kraemer | 10/10 | 5504 days | 1% |
| Kimberly Skyes | 10/10 | 5504 days | 1% |
| Ruth Colmer | 9/10 | 5507 days | 1% |
| maleta | 8/10 | 5518 days | 1% |
| Simon_and_Jane_OZ | 9/10 | 5711 days | 1% |
| JoF | 10/10 | 5733 days | 1% |
| Christian Kamm | 10/10 | 5738 days | 1% |
| Michael Maddams | 7/10 | 5739 days | 1% |
| Joanna Harrnon | 10/10 | 5740 days | 1% |
| Sarah | 8/10 | 5740 days | 1% |
| David | 10/10 | 5741 days | 1% |
| jjakkeren | 9/10 | 5741 days | 1% |
| Alanna | 10/10 | 5742 days | 1% |
| ElissaH | 10/10 | 5743 days | 1% |
| Andrew Smith | 9/10 | 5747 days | 1% |
| Jean | 10/10 | 5757 days | 1% |
| CarinaB1 | 10/10 | 5762 days | 1% |
| Lindsey | 9/10 | 5772 days | 1% |
| Lisa | 10/10 | 5777 days | 1% |
| Laura | 8/10 | 5780 days | 1% |
| kiwibrit86 | 9/10 | 5782 days | 1% |
| Visken | 10/10 | 5784 days | 1% |
| Christina | 10/10 | 5789 days | 1% |
| RachaelO | 10/10 | 5791 days | 1% |
| Marianne | 10/10 | 5791 days | 1% |
| Peppa | 10/10 | 5791 days | 1% |
| Jackie | 9/10 | 5805 days | 1% |
| Patrick | 9/10 | 5805 days | 1% |
| Carla | 8/10 | 5807 days | 1% |
| Keith | 10/10 | 5812 days | 1% |
| Saskia | 9/10 | 5813 days | 1% |
| Patrick | 10/10 | 5817 days | 1% |
| Charlie | 9/10 | 5821 days | 1% |
| Ten | 10/10 | 5821 days | 1% |
| Kevin Dangerfield | 10/10 | 5830 days | 1% |
| Graham | 9/10 | 5845 days | 1% |
| David | 10/10 | 5854 days | 1% |
| Eveline | 10/10 | 5854 days | 1% |
| Mette | 10/10 | 5861 days | 1% |
| Rowan | 9/10 | 5886 days | 1% |
| Hanna | 10/10 | 5886 days | 1% |
| Sally Walker | 10/10 | 5892 days | 1% |
| abby | 10/10 | 5897 days | 1% |
| Paul | 10/10 | 5908 days | 1% |
| Peter | 10/10 | 5916 days | 1% |
| Anna | 10/10 | 5938 days | 1% |
| Liz | 9/10 | 5947 days | 1% |
| Laura | 8/10 | 5947 days | 1% |
| Amy Shields | 7/10 | 5951 days | 1% |
| Erin | 9/10 | 5959 days | 1% |
| George Burgas | 7/10 | 5965 days | 1% |
| Sharon Curly | 7/10 | 5973 days | 1% |
| Peddy | 8/10 | 5976 days | 1% |
| Christine | 9/10 | 5989 days | 1% |
| Charlie Bond | 8/10 | 6022 days | 1% |
| SandyS | 10/10 | 6076 days | 1% |
| BexStar | 10/10 | 6089 days | 1% |
| Galen | 9/10 | 6107 days | 1% |
| Monica Black | 10/10 | 6107 days | 1% |
| Denise | 10/10 | 6124 days | 1% |
| Ria | 9/10 | 6128 days | 1% |
| Christian | 7/10 | 6128 days | 1% |
| Wiebke | 9/10 | 6132 days | 1% |
| Phil Connelly | 9/10 | 6133 days | 1% |
| Amanda | 9/10 | 6139 days | 1% |
| Erwin de Kleijn | 9/10 | 6146 days | 1% |
| Nick | 10/10 | 6155 days | 1% |
| John | 9/10 | 6155 days | 1% |
| Sandra Gustafson | 10/10 | 6183 days | 1% |
| Jo | 10/10 | 6183 days | 1% |
| Helena | 10/10 | 6184 days | 1% |
| Seldam | 8/10 | 6189 days | 1% |
| Andrew Purdam | 7/10 | 6197 days | 1% |
| Gerber Liselotte | 10/10 | 6215 days | 1% |
| Gabriela Herger | 8/10 | 6223 days | 1% |
| Jane Coleman | 8/10 | 6226 days | 1% |
| Wendy Williams | 9/10 | 6233 days | 1% |
| Claire | 8/10 | 6457 days | 1% |
| Will | 9/10 | 6457 days | 1% |
| JanKovar | 10/10 | 6459 days | 1% |
| Justin | 10/10 | 6462 days | 1% |
| Beth | 9/10 | 6468 days | 1% |
| Hanneke | 9/10 | 6469 days | 1% |
| Cat | 8/10 | 6471 days | 1% |
| MartinTrenker | 9/10 | 6477 days | 1% |
| Janneke | 10/10 | 6478 days | 1% |
| Renee | 9/10 | 6481 days | 1% |
| Elke | 8/10 | 6496 days | 1% |
| Malon | 10/10 | 6497 days | 1% |
| Ralph | 10/10 | 6506 days | 1% |
| Lucy | 10/10 | 6506 days | 1% |
| Gordon | 8/10 | 6518 days | 1% |
| Beate | 9/10 | 6519 days | 1% |
| MartinJago | 8/10 | 6530 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
-4.04% Adjustment
There may be an adjustment if this experience hasn't received any reviews within the last 41 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 | -3.98% |
| 198 | -4.00% |
| 199 | -4.02% |
| 200 | -4.04% |
| 201 | -4.06% |
| 202 | -4.08% |
| 203 | -4.10% |
| … | … |
Balancing Adjustment
1.13% 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
90%
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.