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 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
92.82%
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 | 737 days | 100% |
| Lisa | 10/10 | 1436 days | 20% |
| Michael Holm | 9/10 | 2953 days | 4% |
| Stefan Zink | 10/10 | 3205 days | 3% |
| Fentrup | 9/10 | 3211 days | 3% |
| Katharina Koch | 10/10 | 3215 days | 3% |
| Aurelie and Ben Marie | 9/10 | 3217 days | 3% |
| Sebastian Braun | 9/10 | 3305 days | 3% |
| Joanne Woo | 10/10 | 3322 days | 3% |
| Chris | 6/10 | 3353 days | 2% |
| Olivier Reculeau | 10/10 | 3539 days | 2% |
| Susanne Breudel | 10/10 | 3544 days | 2% |
| Josh Legge | 10/10 | 3552 days | 2% |
| Daniel Weber | 9/10 | 3554 days | 2% |
| Virginia Fradin | 10/10 | 3558 days | 2% |
| Olivier Anciaux | 9/10 | 3561 days | 2% |
| Wendy van Boom | 10/10 | 3561 days | 2% |
| Bas Hoogteijling | 10/10 | 3564 days | 2% |
| Mira Huckfield | 10/10 | 3574 days | 2% |
| Maike Santelmann | 10/10 | 3586 days | 2% |
| Levin Stuers | 10/10 | 3591 days | 2% |
| magdalena gomez haedo | 9/10 | 3594 days | 2% |
| Lucca Weisbender | 10/10 | 3596 days | 2% |
| Anna Scholten | 10/10 | 3597 days | 2% |
| Nils Kissel | 10/10 | 3607 days | 2% |
| Madita and Lisann | 10/10 | 3643 days | 2% |
| sanneke tangel | 10/10 | 3649 days | 2% |
| Georgia Coleman | 10/10 | 3649 days | 2% |
| Virgil Spruit | 8/10 | 3653 days | 2% |
| Xue Rong Kok | 7/10 | 3658 days | 2% |
| Anthony Jacobs | 10/10 | 3780 days | 2% |
| Sofie Jebsen | 10/10 | 3923 days | 1% |
| Tobias | 10/10 | 3923 days | 1% |
| Annika Funk | 10/10 | 3959 days | 1% |
| Dawn Mulligan | 10/10 | 3975 days | 1% |
| Christophe Scieszka | 10/10 | 3992 days | 1% |
| Hubert | 8/10 | 4032 days | 1% |
| Ondrej Stepanek | 8/10 | 4268 days | 0% |
| Boneschova Jarka | 10/10 | 4268 days | 0% |
| Heike Heller | 10/10 | 4277 days | 0% |
| Andreas Mouteiro | 9/10 | 4277 days | 0% |
| Josefin Lind | 10/10 | 4278 days | 0% |
| Herman Holmgist | 10/10 | 4278 days | 0% |
| Felicitas | 9/10 | 4300 days | 0% |
| Antoine | 8/10 | 4308 days | 0% |
| Mara K | 10/10 | 4327 days | 0% |
| Emilie Chanbon | 10/10 | 4330 days | 0% |
| Alexis Redor | 10/10 | 4330 days | 0% |
| Julia Amberger | 8/10 | 4349 days | 0% |
| Annalina Drebald | 8/10 | 4349 days | 0% |
| balesdent | 9/10 | 4355 days | 0% |
| Alineet Gautier | 10/10 | 4358 days | 0% |
| Annika Schmidt | 10/10 | 4638 days | 1% |
| Patrick Stoeit | 10/10 | 4638 days | 1% |
| Audrey Ripoche | 9/10 | 4640 days | 1% |
| Rey Germain | 9/10 | 4640 days | 1% |
| Christofer Tonn | 10/10 | 4650 days | 1% |
| Ann Furlong | 10/10 | 4658 days | 1% |
| Trudy Ryan | 8/10 | 4658 days | 1% |
| Jill Fischer | 10/10 | 4664 days | 1% |
| Kim | 10/10 | 4664 days | 1% |
| Francois Marchar | 9/10 | 4674 days | 1% |
| Jan Zimmerman | 10/10 | 4679 days | 1% |
| Elvin Teo | 10/10 | 4692 days | 1% |
| Rob | 9/10 | 4740 days | 1% |
| Andreas Garbin | 10/10 | 4742 days | 1% |
| Joanna | 9/10 | 4760 days | 1% |
| Mellow | 10/10 | 4784 days | 1% |
| whalelover88 | 10/10 | 4937 days | 1% |
| Jos Schieveen | 8/10 | 5008 days | 1% |
| Goran Backlund | 9/10 | 5014 days | 1% |
| Nathan Sait | 10/10 | 5021 days | 1% |
| Toby Clark | 10/10 | 5021 days | 1% |
| Maxine Gilman | 10/10 | 5024 days | 1% |
| Harald | 9/10 | 5038 days | 1% |
| Dominik Langenegger | 9/10 | 5040 days | 1% |
| Rebecca Richardson | 9/10 | 5040 days | 1% |
| Andrew Powell | 9/10 | 5040 days | 1% |
| Peter Field | 10/10 | 5040 days | 1% |
| Eric Lombaard | 8/10 | 5041 days | 1% |
| Nicholas Prakenhammar | 10/10 | 5042 days | 1% |
| Peter Wall | 7/10 | 5042 days | 1% |
| Verne Heath | 8/10 | 5043 days | 1% |
| John O'Donnell | 10/10 | 5044 days | 1% |
| Paul Fairbrass | 10/10 | 5051 days | 1% |
| Frank Krivauek | 10/10 | 5052 days | 1% |
| Rocco Christian | 7/10 | 5052 days | 1% |
| Kurt & Noemi Buhler | 7/10 | 5053 days | 1% |
| Therese | 7/10 | 5056 days | 1% |
| Katie K | 9/10 | 5067 days | 1% |
| CMJ | 10/10 | 5089 days | 1% |
| Jacqueline | 10/10 | 5120 days | 1% |
| Marc & Pauline | 9/10 | 5126 days | 1% |
| Kevin & Chris | 9/10 | 5127 days | 1% |
| Robin & Sandra Dijke | 9/10 | 5129 days | 1% |
| Laura McCusker | 8/10 | 5136 days | 1% |
| Dexter | 10/10 | 5334 days | 1% |
| Jasmin Loeffler | 10/10 | 5340 days | 1% |
| Natascha Rachel | 10/10 | 5340 days | 1% |
| Res Kormann | 10/10 | 5353 days | 1% |
| Sarah James | 10/10 | 5363 days | 1% |
| Nick Taylor | 10/10 | 5363 days | 1% |
| Nicola Young | 10/10 | 5363 days | 1% |
| Stefan Elsenbruch | 9/10 | 5368 days | 1% |
| Stefanie | 7/10 | 5378 days | 1% |
| Koen Vanlede | 10/10 | 5381 days | 1% |
| Van Vliet | 8/10 | 5382 days | 1% |
| Vanessa Vogel | 10/10 | 5385 days | 1% |
| Marcel Camsch | 9/10 | 5387 days | 1% |
| Keely & Mark Haynes | 10/10 | 5388 days | 1% |
| Svea Sauter | 10/10 | 5388 days | 1% |
| henriket | 10/10 | 5389 days | 1% |
| Amanda Wells | 10/10 | 5389 days | 1% |
| K & J Overton | 9/10 | 5389 days | 1% |
| Jerry & Floon | 9/10 | 5393 days | 1% |
| Bartl | 10/10 | 5393 days | 1% |
| travellingfamilyof6 | 10/10 | 5395 days | 1% |
| WeddingMaven | 10/10 | 5395 days | 1% |
| Lieve Verdonck | 8/10 | 5396 days | 1% |
| Victoria Purver | 8/10 | 5398 days | 1% |
| Thelia Beament | 9/10 | 5398 days | 1% |
| Edwards | 9/10 | 5402 days | 1% |
| Mark Irwin | 9/10 | 5406 days | 1% |
| Agnes McMillan | 10/10 | 5407 days | 1% |
| Leslie | 9/10 | 5407 days | 1% |
| Selina Mueller | 10/10 | 5409 days | 1% |
| Jill Dean | 10/10 | 5410 days | 1% |
| Chloe Finster | 10/10 | 5410 days | 1% |
| Vanderhorst | 9/10 | 5411 days | 1% |
| Judith K. | 10/10 | 5413 days | 1% |
| Amanda Wallace | 9/10 | 5413 days | 1% |
| Mark Aarts | 10/10 | 5414 days | 1% |
| Forestal Youri | 9/10 | 5415 days | 1% |
| Dave and Lin Mungham | 10/10 | 5416 days | 1% |
| Jane Hancock | 10/10 | 5418 days | 1% |
| Stephi | 10/10 | 5423 days | 1% |
| Amanda | 10/10 | 5423 days | 1% |
| Mick Doherty | 9/10 | 5454 days | 1% |
| hendrik king | 7/10 | 5454 days | 1% |
| Shoe | 10/10 | 5485 days | 1% |
| marcvergroesen | 9/10 | 5699 days | 1% |
| Jenny Leyland | 9/10 | 5699 days | 1% |
| MarcyMark | 10/10 | 5729 days | 1% |
| katrina Marshall | 10/10 | 5746 days | 1% |
| Von | 9/10 | 5760 days | 1% |
| Judith | 8/10 | 5766 days | 1% |
| Doris Resch | 10/10 | 5766 days | 1% |
| Sheila Morgan | 10/10 | 5769 days | 1% |
| Maria Newton | 9/10 | 5770 days | 1% |
| Faller | 10/10 | 5783 days | 1% |
| Wim Van Gastel | 8/10 | 5786 days | 1% |
| Laura Walters | 9/10 | 5787 days | 1% |
| Chance McGuire | 10/10 | 5788 days | 1% |
| cees juffermans | 9/10 | 5801 days | 1% |
| Markus | 10/10 | 5804 days | 1% |
| Grainne Ahern | 10/10 | 5819 days | 1% |
| sutuckey | 10/10 | 5819 days | 1% |
| Honeymooners | 10/10 | 5819 days | 1% |
| sophiep | 9/10 | 5834 days | 1% |
| chuckchallenger | 10/10 | 5850 days | 1% |
| mdarras | 9/10 | 5854 days | 1% |
| joramv | 9/10 | 5854 days | 1% |
| Michelle Kraemer | 10/10 | 5857 days | 1% |
| Kimberly Skyes | 10/10 | 5857 days | 1% |
| Ruth Colmer | 9/10 | 5860 days | 1% |
| maleta | 8/10 | 5871 days | 1% |
| Simon_and_Jane_OZ | 9/10 | 6064 days | 1% |
| JoF | 10/10 | 6086 days | 1% |
| Christian Kamm | 10/10 | 6091 days | 1% |
| Michael Maddams | 7/10 | 6092 days | 1% |
| Joanna Harrnon | 10/10 | 6093 days | 1% |
| Sarah | 8/10 | 6093 days | 1% |
| David | 10/10 | 6094 days | 1% |
| jjakkeren | 9/10 | 6094 days | 1% |
| Alanna | 10/10 | 6095 days | 1% |
| ElissaH | 10/10 | 6096 days | 1% |
| Andrew Smith | 9/10 | 6100 days | 1% |
| Jean | 10/10 | 6110 days | 1% |
| CarinaB1 | 10/10 | 6115 days | 1% |
| Lindsey | 9/10 | 6125 days | 1% |
| Lisa | 10/10 | 6130 days | 1% |
| Laura | 8/10 | 6133 days | 1% |
| kiwibrit86 | 9/10 | 6135 days | 1% |
| Visken | 10/10 | 6137 days | 1% |
| Christina | 10/10 | 6142 days | 1% |
| RachaelO | 10/10 | 6144 days | 1% |
| Marianne | 10/10 | 6144 days | 1% |
| Peppa | 10/10 | 6144 days | 1% |
| Jackie | 9/10 | 6158 days | 1% |
| Patrick | 9/10 | 6158 days | 1% |
| Carla | 8/10 | 6160 days | 1% |
| Keith | 10/10 | 6166 days | 1% |
| Saskia | 9/10 | 6166 days | 1% |
| Patrick | 10/10 | 6170 days | 1% |
| Charlie | 9/10 | 6174 days | 1% |
| Ten | 10/10 | 6174 days | 1% |
| Kevin Dangerfield | 10/10 | 6183 days | 1% |
| Graham | 9/10 | 6198 days | 1% |
| David | 10/10 | 6207 days | 1% |
| Eveline | 10/10 | 6207 days | 1% |
| Mette | 10/10 | 6214 days | 1% |
| Rowan | 9/10 | 6239 days | 1% |
| Hanna | 10/10 | 6239 days | 1% |
| Sally Walker | 10/10 | 6245 days | 1% |
| abby | 10/10 | 6251 days | 1% |
| Paul | 10/10 | 6261 days | 1% |
| Peter | 10/10 | 6269 days | 1% |
| Anna | 10/10 | 6291 days | 1% |
| Liz | 9/10 | 6300 days | 1% |
| Laura | 8/10 | 6300 days | 1% |
| Amy Shields | 7/10 | 6304 days | 1% |
| Erin | 9/10 | 6312 days | 1% |
| George Burgas | 7/10 | 6318 days | 1% |
| Sharon Curly | 7/10 | 6326 days | 1% |
| Peddy | 8/10 | 6329 days | 1% |
| Christine | 9/10 | 6342 days | 1% |
| Charlie Bond | 8/10 | 6375 days | 1% |
| SandyS | 10/10 | 6429 days | 1% |
| BexStar | 10/10 | 6442 days | 1% |
| Galen | 9/10 | 6460 days | 1% |
| Monica Black | 10/10 | 6460 days | 1% |
| Denise | 10/10 | 6477 days | 1% |
| Ria | 9/10 | 6481 days | 1% |
| Christian | 7/10 | 6481 days | 1% |
| Wiebke | 9/10 | 6485 days | 1% |
| Phil Connelly | 9/10 | 6486 days | 1% |
| Amanda | 9/10 | 6492 days | 1% |
| Erwin de Kleijn | 9/10 | 6499 days | 1% |
| Nick | 10/10 | 6508 days | 1% |
| John | 9/10 | 6508 days | 1% |
| Sandra Gustafson | 10/10 | 6536 days | 1% |
| Jo | 10/10 | 6536 days | 1% |
| Helena | 10/10 | 6537 days | 1% |
| Seldam | 8/10 | 6542 days | 1% |
| Andrew Purdam | 7/10 | 6550 days | 1% |
| Gerber Liselotte | 10/10 | 6568 days | 1% |
| Gabriela Herger | 8/10 | 6576 days | 1% |
| Jane Coleman | 8/10 | 6579 days | 1% |
| Wendy Williams | 9/10 | 6586 days | 1% |
| Claire | 8/10 | 6810 days | 1% |
| Will | 9/10 | 6810 days | 1% |
| JanKovar | 10/10 | 6812 days | 1% |
| Justin | 10/10 | 6815 days | 1% |
| Beth | 9/10 | 6821 days | 1% |
| Hanneke | 9/10 | 6822 days | 1% |
| Cat | 8/10 | 6824 days | 1% |
| MartinTrenker | 9/10 | 6830 days | 1% |
| Janneke | 10/10 | 6831 days | 1% |
| Renee | 9/10 | 6834 days | 1% |
| Elke | 8/10 | 6849 days | 1% |
| Malon | 10/10 | 6850 days | 1% |
| Ralph | 10/10 | 6859 days | 1% |
| Lucy | 10/10 | 6859 days | 1% |
| Gordon | 8/10 | 6871 days | 1% |
| Beate | 9/10 | 6872 days | 1% |
| MartinJago | 8/10 | 6883 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
-4.07% Adjustment
There may be an adjustment if this experience hasn't received any reviews within the last 42 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 | -4.01% |
| 198 | -4.03% |
| 199 | -4.05% |
| 200 | -4.07% |
| 201 | -4.09% |
| 202 | -4.11% |
| 203 | -4.13% |
| … | … |
Balancing Adjustment
1.18% 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.