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
92.72%
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 | 982 days | 100% |
| Lisa | 10/10 | 1681 days | 13% |
| Michael Holm | 9/10 | 3198 days | 5% |
| Stefan Zink | 10/10 | 3450 days | 4% |
| Fentrup | 9/10 | 3456 days | 4% |
| Katharina Koch | 10/10 | 3460 days | 4% |
| Aurelie and Ben Marie | 9/10 | 3462 days | 4% |
| Sebastian Braun | 9/10 | 3550 days | 3% |
| Joanne Woo | 10/10 | 3567 days | 3% |
| Chris | 6/10 | 3598 days | 2% |
| Olivier Reculeau | 10/10 | 3784 days | 2% |
| Susanne Breudel | 10/10 | 3789 days | 2% |
| Josh Legge | 10/10 | 3797 days | 2% |
| Daniel Weber | 9/10 | 3799 days | 2% |
| Virginia Fradin | 10/10 | 3803 days | 2% |
| Olivier Anciaux | 9/10 | 3806 days | 2% |
| Wendy van Boom | 10/10 | 3806 days | 2% |
| Bas Hoogteijling | 10/10 | 3809 days | 2% |
| Mira Huckfield | 10/10 | 3819 days | 2% |
| Maike Santelmann | 10/10 | 3831 days | 2% |
| Levin Stuers | 10/10 | 3836 days | 2% |
| magdalena gomez haedo | 9/10 | 3839 days | 2% |
| Lucca Weisbender | 10/10 | 3841 days | 2% |
| Anna Scholten | 10/10 | 3842 days | 2% |
| Nils Kissel | 10/10 | 3852 days | 2% |
| Madita and Lisann | 10/10 | 3888 days | 2% |
| sanneke tangel | 10/10 | 3894 days | 2% |
| Georgia Coleman | 10/10 | 3894 days | 2% |
| Virgil Spruit | 8/10 | 3898 days | 2% |
| Xue Rong Kok | 7/10 | 3903 days | 1% |
| Anthony Jacobs | 10/10 | 4025 days | 1% |
| Sofie Jebsen | 10/10 | 4168 days | 0% |
| Tobias | 10/10 | 4168 days | 0% |
| Annika Funk | 10/10 | 4204 days | 0% |
| Dawn Mulligan | 10/10 | 4220 days | 0% |
| Christophe Scieszka | 10/10 | 4237 days | 0% |
| Hubert | 8/10 | 4277 days | 0% |
| Ondrej Stepanek | 8/10 | 4513 days | 2% |
| Boneschova Jarka | 10/10 | 4513 days | 2% |
| Heike Heller | 10/10 | 4522 days | 2% |
| Andreas Mouteiro | 9/10 | 4522 days | 2% |
| Josefin Lind | 10/10 | 4523 days | 2% |
| Herman Holmgist | 10/10 | 4523 days | 2% |
| Felicitas | 9/10 | 4545 days | 2% |
| Antoine | 8/10 | 4553 days | 2% |
| Mara K | 10/10 | 4572 days | 2% |
| Emilie Chanbon | 10/10 | 4575 days | 2% |
| Alexis Redor | 10/10 | 4575 days | 2% |
| Julia Amberger | 8/10 | 4594 days | 2% |
| Annalina Drebald | 8/10 | 4594 days | 2% |
| balesdent | 9/10 | 4600 days | 2% |
| Alineet Gautier | 10/10 | 4603 days | 2% |
| Annika Schmidt | 10/10 | 4883 days | 2% |
| Patrick Stoeit | 10/10 | 4883 days | 2% |
| Audrey Ripoche | 9/10 | 4885 days | 2% |
| Rey Germain | 9/10 | 4885 days | 2% |
| Christofer Tonn | 10/10 | 4895 days | 2% |
| Ann Furlong | 10/10 | 4903 days | 2% |
| Trudy Ryan | 8/10 | 4903 days | 2% |
| Jill Fischer | 10/10 | 4909 days | 2% |
| Kim | 10/10 | 4909 days | 2% |
| Francois Marchar | 9/10 | 4919 days | 2% |
| Jan Zimmerman | 10/10 | 4924 days | 2% |
| Elvin Teo | 10/10 | 4937 days | 2% |
| Rob | 9/10 | 4985 days | 2% |
| Andreas Garbin | 10/10 | 4987 days | 2% |
| Joanna | 9/10 | 5005 days | 2% |
| Mellow | 10/10 | 5029 days | 2% |
| whalelover88 | 10/10 | 5182 days | 2% |
| Jos Schieveen | 8/10 | 5253 days | 2% |
| Goran Backlund | 9/10 | 5259 days | 2% |
| Nathan Sait | 10/10 | 5266 days | 2% |
| Toby Clark | 10/10 | 5266 days | 2% |
| Maxine Gilman | 10/10 | 5269 days | 2% |
| Harald | 9/10 | 5283 days | 2% |
| Dominik Langenegger | 9/10 | 5285 days | 2% |
| Rebecca Richardson | 9/10 | 5285 days | 2% |
| Andrew Powell | 9/10 | 5285 days | 2% |
| Peter Field | 10/10 | 5285 days | 2% |
| Eric Lombaard | 8/10 | 5286 days | 2% |
| Nicholas Prakenhammar | 10/10 | 5287 days | 2% |
| Peter Wall | 7/10 | 5287 days | 2% |
| Verne Heath | 8/10 | 5288 days | 2% |
| John O'Donnell | 10/10 | 5289 days | 2% |
| Paul Fairbrass | 10/10 | 5296 days | 2% |
| Frank Krivauek | 10/10 | 5297 days | 2% |
| Rocco Christian | 7/10 | 5297 days | 2% |
| Kurt & Noemi Buhler | 7/10 | 5298 days | 2% |
| Therese | 7/10 | 5301 days | 2% |
| Katie K | 9/10 | 5312 days | 2% |
| CMJ | 10/10 | 5334 days | 2% |
| Jacqueline | 10/10 | 5365 days | 2% |
| Marc & Pauline | 9/10 | 5371 days | 2% |
| Kevin & Chris | 9/10 | 5372 days | 2% |
| Robin & Sandra Dijke | 9/10 | 5374 days | 2% |
| Laura McCusker | 8/10 | 5381 days | 2% |
| Dexter | 10/10 | 5579 days | 2% |
| Jasmin Loeffler | 10/10 | 5585 days | 2% |
| Natascha Rachel | 10/10 | 5585 days | 2% |
| Res Kormann | 10/10 | 5598 days | 2% |
| Sarah James | 10/10 | 5608 days | 2% |
| Nick Taylor | 10/10 | 5608 days | 2% |
| Nicola Young | 10/10 | 5608 days | 2% |
| Stefan Elsenbruch | 9/10 | 5613 days | 2% |
| Stefanie | 7/10 | 5623 days | 2% |
| Koen Vanlede | 10/10 | 5626 days | 2% |
| Van Vliet | 8/10 | 5627 days | 2% |
| Vanessa Vogel | 10/10 | 5630 days | 2% |
| Marcel Camsch | 9/10 | 5632 days | 2% |
| Keely & Mark Haynes | 10/10 | 5633 days | 2% |
| Svea Sauter | 10/10 | 5633 days | 2% |
| henriket | 10/10 | 5634 days | 2% |
| Amanda Wells | 10/10 | 5634 days | 2% |
| K & J Overton | 9/10 | 5634 days | 2% |
| Jerry & Floon | 9/10 | 5638 days | 2% |
| Bartl | 10/10 | 5638 days | 2% |
| travellingfamilyof6 | 10/10 | 5640 days | 2% |
| WeddingMaven | 10/10 | 5640 days | 2% |
| Lieve Verdonck | 8/10 | 5641 days | 2% |
| Victoria Purver | 8/10 | 5643 days | 2% |
| Thelia Beament | 9/10 | 5643 days | 2% |
| Edwards | 9/10 | 5647 days | 2% |
| Mark Irwin | 9/10 | 5651 days | 2% |
| Agnes McMillan | 10/10 | 5652 days | 2% |
| Leslie | 9/10 | 5652 days | 2% |
| Selina Mueller | 10/10 | 5654 days | 2% |
| Jill Dean | 10/10 | 5655 days | 2% |
| Chloe Finster | 10/10 | 5655 days | 2% |
| Vanderhorst | 9/10 | 5656 days | 2% |
| Judith K. | 10/10 | 5658 days | 2% |
| Amanda Wallace | 9/10 | 5658 days | 2% |
| Mark Aarts | 10/10 | 5659 days | 2% |
| Forestal Youri | 9/10 | 5660 days | 2% |
| Dave and Lin Mungham | 10/10 | 5661 days | 2% |
| Jane Hancock | 10/10 | 5663 days | 2% |
| Stephi | 10/10 | 5668 days | 2% |
| Amanda | 10/10 | 5668 days | 2% |
| Mick Doherty | 9/10 | 5699 days | 2% |
| hendrik king | 7/10 | 5699 days | 2% |
| Shoe | 10/10 | 5730 days | 2% |
| marcvergroesen | 9/10 | 5944 days | 2% |
| Jenny Leyland | 9/10 | 5944 days | 2% |
| MarcyMark | 10/10 | 5974 days | 2% |
| katrina Marshall | 10/10 | 5991 days | 2% |
| Von | 9/10 | 6005 days | 2% |
| Judith | 8/10 | 6011 days | 2% |
| Doris Resch | 10/10 | 6011 days | 2% |
| Sheila Morgan | 10/10 | 6014 days | 2% |
| Maria Newton | 9/10 | 6015 days | 2% |
| Faller | 10/10 | 6028 days | 2% |
| Wim Van Gastel | 8/10 | 6031 days | 2% |
| Laura Walters | 9/10 | 6032 days | 2% |
| Chance McGuire | 10/10 | 6033 days | 2% |
| cees juffermans | 9/10 | 6046 days | 2% |
| Markus | 10/10 | 6049 days | 2% |
| Grainne Ahern | 10/10 | 6064 days | 2% |
| sutuckey | 10/10 | 6064 days | 2% |
| Honeymooners | 10/10 | 6064 days | 2% |
| sophiep | 9/10 | 6079 days | 2% |
| chuckchallenger | 10/10 | 6095 days | 2% |
| mdarras | 9/10 | 6099 days | 2% |
| joramv | 9/10 | 6099 days | 2% |
| Michelle Kraemer | 10/10 | 6102 days | 2% |
| Kimberly Skyes | 10/10 | 6102 days | 2% |
| Ruth Colmer | 9/10 | 6105 days | 2% |
| maleta | 8/10 | 6116 days | 2% |
| Simon_and_Jane_OZ | 9/10 | 6309 days | 2% |
| JoF | 10/10 | 6331 days | 2% |
| Christian Kamm | 10/10 | 6336 days | 2% |
| Michael Maddams | 7/10 | 6337 days | 2% |
| Joanna Harrnon | 10/10 | 6338 days | 2% |
| Sarah | 8/10 | 6338 days | 2% |
| David | 10/10 | 6339 days | 2% |
| jjakkeren | 9/10 | 6339 days | 2% |
| Alanna | 10/10 | 6340 days | 2% |
| ElissaH | 10/10 | 6341 days | 2% |
| Andrew Smith | 9/10 | 6345 days | 2% |
| Jean | 10/10 | 6355 days | 2% |
| CarinaB1 | 10/10 | 6360 days | 2% |
| Lindsey | 9/10 | 6370 days | 2% |
| Lisa | 10/10 | 6375 days | 2% |
| Laura | 8/10 | 6378 days | 2% |
| kiwibrit86 | 9/10 | 6380 days | 2% |
| Visken | 10/10 | 6382 days | 2% |
| Christina | 10/10 | 6387 days | 2% |
| RachaelO | 10/10 | 6389 days | 2% |
| Marianne | 10/10 | 6389 days | 2% |
| Peppa | 10/10 | 6389 days | 2% |
| Jackie | 9/10 | 6403 days | 2% |
| Patrick | 9/10 | 6403 days | 2% |
| Carla | 8/10 | 6405 days | 2% |
| Keith | 10/10 | 6410 days | 2% |
| Saskia | 9/10 | 6411 days | 2% |
| Patrick | 10/10 | 6415 days | 2% |
| Charlie | 9/10 | 6419 days | 2% |
| Ten | 10/10 | 6419 days | 2% |
| Kevin Dangerfield | 10/10 | 6428 days | 2% |
| Graham | 9/10 | 6443 days | 2% |
| David | 10/10 | 6452 days | 2% |
| Eveline | 10/10 | 6452 days | 2% |
| Mette | 10/10 | 6459 days | 2% |
| Rowan | 9/10 | 6484 days | 2% |
| Hanna | 10/10 | 6484 days | 2% |
| Sally Walker | 10/10 | 6490 days | 2% |
| abby | 10/10 | 6495 days | 2% |
| Paul | 10/10 | 6506 days | 2% |
| Peter | 10/10 | 6514 days | 2% |
| Anna | 10/10 | 6536 days | 2% |
| Liz | 9/10 | 6545 days | 2% |
| Laura | 8/10 | 6545 days | 2% |
| Amy Shields | 7/10 | 6549 days | 2% |
| Erin | 9/10 | 6557 days | 2% |
| George Burgas | 7/10 | 6563 days | 2% |
| Sharon Curly | 7/10 | 6571 days | 2% |
| Peddy | 8/10 | 6574 days | 2% |
| Christine | 9/10 | 6587 days | 2% |
| Charlie Bond | 8/10 | 6620 days | 2% |
| SandyS | 10/10 | 6674 days | 2% |
| BexStar | 10/10 | 6687 days | 2% |
| Galen | 9/10 | 6705 days | 2% |
| Monica Black | 10/10 | 6705 days | 2% |
| Denise | 10/10 | 6722 days | 2% |
| Ria | 9/10 | 6726 days | 2% |
| Christian | 7/10 | 6726 days | 2% |
| Wiebke | 9/10 | 6730 days | 2% |
| Phil Connelly | 9/10 | 6731 days | 2% |
| Amanda | 9/10 | 6737 days | 2% |
| Erwin de Kleijn | 9/10 | 6744 days | 2% |
| Nick | 10/10 | 6753 days | 2% |
| John | 9/10 | 6753 days | 2% |
| Sandra Gustafson | 10/10 | 6781 days | 2% |
| Jo | 10/10 | 6781 days | 2% |
| Helena | 10/10 | 6782 days | 2% |
| Seldam | 8/10 | 6787 days | 2% |
| Andrew Purdam | 7/10 | 6795 days | 2% |
| Gerber Liselotte | 10/10 | 6813 days | 2% |
| Gabriela Herger | 8/10 | 6821 days | 2% |
| Jane Coleman | 8/10 | 6824 days | 2% |
| Wendy Williams | 9/10 | 6831 days | 2% |
| Claire | 8/10 | 7055 days | 2% |
| Will | 9/10 | 7055 days | 2% |
| JanKovar | 10/10 | 7057 days | 2% |
| Justin | 10/10 | 7060 days | 2% |
| Beth | 9/10 | 7066 days | 2% |
| Hanneke | 9/10 | 7067 days | 2% |
| Cat | 8/10 | 7069 days | 2% |
| MartinTrenker | 9/10 | 7075 days | 2% |
| Janneke | 10/10 | 7076 days | 2% |
| Renee | 9/10 | 7079 days | 2% |
| Elke | 8/10 | 7094 days | 2% |
| Malon | 10/10 | 7095 days | 2% |
| Ralph | 10/10 | 7104 days | 2% |
| Lucy | 10/10 | 7104 days | 2% |
| Gordon | 8/10 | 7116 days | 2% |
| Beate | 9/10 | 7117 days | 2% |
| MartinJago | 8/10 | 7128 days | 2% |
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
-2.20% Adjustment
There may be an adjustment if this experience hasn't received any reviews within the last 119 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 | -2.17% |
| 198 | -2.18% |
| 199 | -2.19% |
| 200 | -2.20% |
| 201 | -2.21% |
| 202 | -2.23% |
| 203 | -2.24% |
| … | … |
Balancing Adjustment
0.93% 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.