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
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 | 892 days | 100% |
| Lisa | 10/10 | 1591 days | 14% |
| Michael Holm | 9/10 | 3108 days | 4% |
| Stefan Zink | 10/10 | 3360 days | 3% |
| Fentrup | 9/10 | 3366 days | 3% |
| Katharina Koch | 10/10 | 3370 days | 3% |
| Aurelie and Ben Marie | 9/10 | 3372 days | 3% |
| Sebastian Braun | 9/10 | 3460 days | 3% |
| Joanne Woo | 10/10 | 3477 days | 3% |
| Chris | 6/10 | 3508 days | 2% |
| Olivier Reculeau | 10/10 | 3694 days | 2% |
| Susanne Breudel | 10/10 | 3699 days | 2% |
| Josh Legge | 10/10 | 3707 days | 2% |
| Daniel Weber | 9/10 | 3709 days | 2% |
| Virginia Fradin | 10/10 | 3713 days | 2% |
| Olivier Anciaux | 9/10 | 3716 days | 2% |
| Wendy van Boom | 10/10 | 3716 days | 2% |
| Bas Hoogteijling | 10/10 | 3719 days | 2% |
| Mira Huckfield | 10/10 | 3729 days | 2% |
| Maike Santelmann | 10/10 | 3741 days | 2% |
| Levin Stuers | 10/10 | 3746 days | 2% |
| magdalena gomez haedo | 9/10 | 3749 days | 2% |
| Lucca Weisbender | 10/10 | 3751 days | 2% |
| Anna Scholten | 10/10 | 3752 days | 2% |
| Nils Kissel | 10/10 | 3762 days | 2% |
| Madita and Lisann | 10/10 | 3798 days | 1% |
| sanneke tangel | 10/10 | 3804 days | 1% |
| Georgia Coleman | 10/10 | 3804 days | 1% |
| Virgil Spruit | 8/10 | 3808 days | 1% |
| Xue Rong Kok | 7/10 | 3813 days | 1% |
| Anthony Jacobs | 10/10 | 3935 days | 1% |
| Sofie Jebsen | 10/10 | 4078 days | 0% |
| Tobias | 10/10 | 4078 days | 0% |
| Annika Funk | 10/10 | 4114 days | 0% |
| Dawn Mulligan | 10/10 | 4130 days | 0% |
| Christophe Scieszka | 10/10 | 4147 days | 0% |
| Hubert | 8/10 | 4187 days | 0% |
| Ondrej Stepanek | 8/10 | 4423 days | 1% |
| Boneschova Jarka | 10/10 | 4423 days | 1% |
| Heike Heller | 10/10 | 4432 days | 1% |
| Andreas Mouteiro | 9/10 | 4432 days | 1% |
| Josefin Lind | 10/10 | 4433 days | 1% |
| Herman Holmgist | 10/10 | 4433 days | 1% |
| Felicitas | 9/10 | 4455 days | 1% |
| Antoine | 8/10 | 4463 days | 1% |
| Mara K | 10/10 | 4482 days | 1% |
| Emilie Chanbon | 10/10 | 4485 days | 1% |
| Alexis Redor | 10/10 | 4485 days | 1% |
| Julia Amberger | 8/10 | 4504 days | 1% |
| Annalina Drebald | 8/10 | 4504 days | 1% |
| balesdent | 9/10 | 4510 days | 1% |
| Alineet Gautier | 10/10 | 4513 days | 1% |
| Annika Schmidt | 10/10 | 4793 days | 1% |
| Patrick Stoeit | 10/10 | 4793 days | 1% |
| Audrey Ripoche | 9/10 | 4795 days | 1% |
| Rey Germain | 9/10 | 4795 days | 1% |
| Christofer Tonn | 10/10 | 4805 days | 1% |
| Ann Furlong | 10/10 | 4813 days | 1% |
| Trudy Ryan | 8/10 | 4813 days | 1% |
| Jill Fischer | 10/10 | 4819 days | 1% |
| Kim | 10/10 | 4819 days | 1% |
| Francois Marchar | 9/10 | 4829 days | 1% |
| Jan Zimmerman | 10/10 | 4834 days | 1% |
| Elvin Teo | 10/10 | 4847 days | 1% |
| Rob | 9/10 | 4895 days | 1% |
| Andreas Garbin | 10/10 | 4897 days | 1% |
| Joanna | 9/10 | 4915 days | 1% |
| Mellow | 10/10 | 4939 days | 1% |
| whalelover88 | 10/10 | 5091 days | 1% |
| Jos Schieveen | 8/10 | 5163 days | 1% |
| Goran Backlund | 9/10 | 5169 days | 1% |
| Nathan Sait | 10/10 | 5176 days | 1% |
| Toby Clark | 10/10 | 5176 days | 1% |
| Maxine Gilman | 10/10 | 5179 days | 1% |
| Harald | 9/10 | 5193 days | 1% |
| Dominik Langenegger | 9/10 | 5195 days | 1% |
| Rebecca Richardson | 9/10 | 5195 days | 1% |
| Andrew Powell | 9/10 | 5195 days | 1% |
| Peter Field | 10/10 | 5195 days | 1% |
| Eric Lombaard | 8/10 | 5196 days | 1% |
| Nicholas Prakenhammar | 10/10 | 5197 days | 1% |
| Peter Wall | 7/10 | 5197 days | 1% |
| Verne Heath | 8/10 | 5198 days | 1% |
| John O'Donnell | 10/10 | 5199 days | 1% |
| Paul Fairbrass | 10/10 | 5206 days | 1% |
| Frank Krivauek | 10/10 | 5207 days | 1% |
| Rocco Christian | 7/10 | 5207 days | 1% |
| Kurt & Noemi Buhler | 7/10 | 5208 days | 1% |
| Therese | 7/10 | 5211 days | 1% |
| Katie K | 9/10 | 5222 days | 1% |
| CMJ | 10/10 | 5244 days | 1% |
| Jacqueline | 10/10 | 5275 days | 1% |
| Marc & Pauline | 9/10 | 5281 days | 1% |
| Kevin & Chris | 9/10 | 5282 days | 1% |
| Robin & Sandra Dijke | 9/10 | 5284 days | 1% |
| Laura McCusker | 8/10 | 5291 days | 1% |
| Dexter | 10/10 | 5488 days | 1% |
| Jasmin Loeffler | 10/10 | 5494 days | 1% |
| Natascha Rachel | 10/10 | 5494 days | 1% |
| Res Kormann | 10/10 | 5507 days | 1% |
| Sarah James | 10/10 | 5518 days | 1% |
| Nick Taylor | 10/10 | 5518 days | 1% |
| Nicola Young | 10/10 | 5518 days | 1% |
| Stefan Elsenbruch | 9/10 | 5523 days | 1% |
| Stefanie | 7/10 | 5533 days | 1% |
| Koen Vanlede | 10/10 | 5536 days | 1% |
| Van Vliet | 8/10 | 5537 days | 1% |
| Vanessa Vogel | 10/10 | 5540 days | 1% |
| Marcel Camsch | 9/10 | 5542 days | 1% |
| Keely & Mark Haynes | 10/10 | 5543 days | 1% |
| Svea Sauter | 10/10 | 5543 days | 1% |
| henriket | 10/10 | 5544 days | 1% |
| Amanda Wells | 10/10 | 5544 days | 1% |
| K & J Overton | 9/10 | 5544 days | 1% |
| Jerry & Floon | 9/10 | 5548 days | 1% |
| Bartl | 10/10 | 5548 days | 1% |
| travellingfamilyof6 | 10/10 | 5550 days | 1% |
| WeddingMaven | 10/10 | 5550 days | 1% |
| Lieve Verdonck | 8/10 | 5551 days | 1% |
| Victoria Purver | 8/10 | 5553 days | 1% |
| Thelia Beament | 9/10 | 5553 days | 1% |
| Edwards | 9/10 | 5557 days | 1% |
| Mark Irwin | 9/10 | 5561 days | 1% |
| Agnes McMillan | 10/10 | 5562 days | 1% |
| Leslie | 9/10 | 5562 days | 1% |
| Selina Mueller | 10/10 | 5564 days | 1% |
| Jill Dean | 10/10 | 5565 days | 1% |
| Chloe Finster | 10/10 | 5565 days | 1% |
| Vanderhorst | 9/10 | 5566 days | 1% |
| Judith K. | 10/10 | 5568 days | 1% |
| Amanda Wallace | 9/10 | 5568 days | 1% |
| Mark Aarts | 10/10 | 5569 days | 1% |
| Forestal Youri | 9/10 | 5570 days | 1% |
| Dave and Lin Mungham | 10/10 | 5571 days | 1% |
| Jane Hancock | 10/10 | 5573 days | 1% |
| Stephi | 10/10 | 5578 days | 1% |
| Amanda | 10/10 | 5578 days | 1% |
| Mick Doherty | 9/10 | 5609 days | 1% |
| hendrik king | 7/10 | 5609 days | 1% |
| Shoe | 10/10 | 5640 days | 1% |
| marcvergroesen | 9/10 | 5853 days | 1% |
| Jenny Leyland | 9/10 | 5853 days | 1% |
| MarcyMark | 10/10 | 5884 days | 1% |
| katrina Marshall | 10/10 | 5901 days | 1% |
| Von | 9/10 | 5915 days | 1% |
| Judith | 8/10 | 5921 days | 1% |
| Doris Resch | 10/10 | 5921 days | 1% |
| Sheila Morgan | 10/10 | 5924 days | 1% |
| Maria Newton | 9/10 | 5925 days | 1% |
| Faller | 10/10 | 5938 days | 1% |
| Wim Van Gastel | 8/10 | 5941 days | 1% |
| Laura Walters | 9/10 | 5942 days | 1% |
| Chance McGuire | 10/10 | 5943 days | 1% |
| cees juffermans | 9/10 | 5956 days | 1% |
| Markus | 10/10 | 5959 days | 1% |
| Grainne Ahern | 10/10 | 5974 days | 1% |
| sutuckey | 10/10 | 5974 days | 1% |
| Honeymooners | 10/10 | 5974 days | 1% |
| sophiep | 9/10 | 5989 days | 1% |
| chuckchallenger | 10/10 | 6005 days | 1% |
| mdarras | 9/10 | 6009 days | 1% |
| joramv | 9/10 | 6009 days | 1% |
| Michelle Kraemer | 10/10 | 6012 days | 1% |
| Kimberly Skyes | 10/10 | 6012 days | 1% |
| Ruth Colmer | 9/10 | 6015 days | 1% |
| maleta | 8/10 | 6026 days | 1% |
| Simon_and_Jane_OZ | 9/10 | 6218 days | 1% |
| JoF | 10/10 | 6240 days | 1% |
| Christian Kamm | 10/10 | 6246 days | 1% |
| Michael Maddams | 7/10 | 6247 days | 1% |
| Joanna Harrnon | 10/10 | 6248 days | 1% |
| Sarah | 8/10 | 6248 days | 1% |
| David | 10/10 | 6249 days | 1% |
| jjakkeren | 9/10 | 6249 days | 1% |
| Alanna | 10/10 | 6250 days | 1% |
| ElissaH | 10/10 | 6251 days | 1% |
| Andrew Smith | 9/10 | 6255 days | 1% |
| Jean | 10/10 | 6265 days | 1% |
| CarinaB1 | 10/10 | 6270 days | 1% |
| Lindsey | 9/10 | 6280 days | 1% |
| Lisa | 10/10 | 6285 days | 1% |
| Laura | 8/10 | 6288 days | 1% |
| kiwibrit86 | 9/10 | 6290 days | 1% |
| Visken | 10/10 | 6292 days | 1% |
| Christina | 10/10 | 6297 days | 1% |
| RachaelO | 10/10 | 6299 days | 1% |
| Marianne | 10/10 | 6299 days | 1% |
| Peppa | 10/10 | 6299 days | 1% |
| Jackie | 9/10 | 6313 days | 1% |
| Patrick | 9/10 | 6313 days | 1% |
| Carla | 8/10 | 6315 days | 1% |
| Keith | 10/10 | 6320 days | 1% |
| Saskia | 9/10 | 6321 days | 1% |
| Patrick | 10/10 | 6325 days | 1% |
| Charlie | 9/10 | 6329 days | 1% |
| Ten | 10/10 | 6329 days | 1% |
| Kevin Dangerfield | 10/10 | 6338 days | 1% |
| Graham | 9/10 | 6353 days | 1% |
| David | 10/10 | 6362 days | 1% |
| Eveline | 10/10 | 6362 days | 1% |
| Mette | 10/10 | 6369 days | 1% |
| Rowan | 9/10 | 6394 days | 1% |
| Hanna | 10/10 | 6394 days | 1% |
| Sally Walker | 10/10 | 6400 days | 1% |
| abby | 10/10 | 6405 days | 1% |
| Paul | 10/10 | 6416 days | 1% |
| Peter | 10/10 | 6424 days | 1% |
| Anna | 10/10 | 6446 days | 1% |
| Liz | 9/10 | 6455 days | 1% |
| Laura | 8/10 | 6455 days | 1% |
| Amy Shields | 7/10 | 6459 days | 1% |
| Erin | 9/10 | 6467 days | 1% |
| George Burgas | 7/10 | 6473 days | 1% |
| Sharon Curly | 7/10 | 6481 days | 1% |
| Peddy | 8/10 | 6484 days | 1% |
| Christine | 9/10 | 6497 days | 1% |
| Charlie Bond | 8/10 | 6530 days | 1% |
| SandyS | 10/10 | 6583 days | 1% |
| BexStar | 10/10 | 6597 days | 1% |
| Galen | 9/10 | 6615 days | 1% |
| Monica Black | 10/10 | 6615 days | 1% |
| Denise | 10/10 | 6632 days | 1% |
| Ria | 9/10 | 6636 days | 1% |
| Christian | 7/10 | 6636 days | 1% |
| Wiebke | 9/10 | 6640 days | 1% |
| Phil Connelly | 9/10 | 6641 days | 1% |
| Amanda | 9/10 | 6647 days | 1% |
| Erwin de Kleijn | 9/10 | 6654 days | 1% |
| Nick | 10/10 | 6663 days | 1% |
| John | 9/10 | 6663 days | 1% |
| Sandra Gustafson | 10/10 | 6691 days | 1% |
| Jo | 10/10 | 6691 days | 1% |
| Helena | 10/10 | 6692 days | 1% |
| Seldam | 8/10 | 6697 days | 1% |
| Andrew Purdam | 7/10 | 6705 days | 1% |
| Gerber Liselotte | 10/10 | 6723 days | 1% |
| Gabriela Herger | 8/10 | 6731 days | 1% |
| Jane Coleman | 8/10 | 6734 days | 1% |
| Wendy Williams | 9/10 | 6741 days | 1% |
| Claire | 8/10 | 6964 days | 1% |
| Will | 9/10 | 6964 days | 1% |
| JanKovar | 10/10 | 6966 days | 1% |
| Justin | 10/10 | 6969 days | 1% |
| Beth | 9/10 | 6975 days | 1% |
| Hanneke | 9/10 | 6976 days | 1% |
| Cat | 8/10 | 6978 days | 1% |
| MartinTrenker | 9/10 | 6984 days | 1% |
| Janneke | 10/10 | 6985 days | 1% |
| Renee | 9/10 | 6988 days | 1% |
| Elke | 8/10 | 7004 days | 1% |
| Malon | 10/10 | 7005 days | 1% |
| Ralph | 10/10 | 7014 days | 1% |
| Lucy | 10/10 | 7014 days | 1% |
| Gordon | 8/10 | 7026 days | 1% |
| Beate | 9/10 | 7027 days | 1% |
| MartinJago | 8/10 | 7038 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
-2.91% Adjustment
There may be an adjustment if this experience hasn't received any reviews within the last 86 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 | -2.87% |
| 198 | -2.88% |
| 199 | -2.90% |
| 200 | -2.91% |
| 201 | -2.93% |
| 202 | -2.94% |
| 203 | -2.96% |
| … | … |
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.