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
92.78%
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 | 799 days | 100% |
| Lisa | 10/10 | 1498 days | 18% |
| Michael Holm | 9/10 | 3015 days | 4% |
| Stefan Zink | 10/10 | 3267 days | 3% |
| Fentrup | 9/10 | 3273 days | 3% |
| Katharina Koch | 10/10 | 3277 days | 3% |
| Aurelie and Ben Marie | 9/10 | 3279 days | 3% |
| Sebastian Braun | 9/10 | 3367 days | 3% |
| Joanne Woo | 10/10 | 3384 days | 3% |
| Chris | 6/10 | 3415 days | 3% |
| Olivier Reculeau | 10/10 | 3601 days | 2% |
| Susanne Breudel | 10/10 | 3606 days | 2% |
| Josh Legge | 10/10 | 3614 days | 2% |
| Daniel Weber | 9/10 | 3616 days | 2% |
| Virginia Fradin | 10/10 | 3620 days | 2% |
| Olivier Anciaux | 9/10 | 3623 days | 2% |
| Wendy van Boom | 10/10 | 3623 days | 2% |
| Bas Hoogteijling | 10/10 | 3626 days | 2% |
| Mira Huckfield | 10/10 | 3636 days | 2% |
| Maike Santelmann | 10/10 | 3648 days | 2% |
| Levin Stuers | 10/10 | 3653 days | 2% |
| magdalena gomez haedo | 9/10 | 3656 days | 2% |
| Lucca Weisbender | 10/10 | 3658 days | 2% |
| Anna Scholten | 10/10 | 3659 days | 2% |
| Nils Kissel | 10/10 | 3669 days | 2% |
| Madita and Lisann | 10/10 | 3705 days | 2% |
| sanneke tangel | 10/10 | 3711 days | 2% |
| Georgia Coleman | 10/10 | 3711 days | 2% |
| Virgil Spruit | 8/10 | 3715 days | 2% |
| Xue Rong Kok | 7/10 | 3720 days | 2% |
| Anthony Jacobs | 10/10 | 3842 days | 2% |
| Sofie Jebsen | 10/10 | 3985 days | 1% |
| Tobias | 10/10 | 3985 days | 1% |
| Annika Funk | 10/10 | 4021 days | 1% |
| Dawn Mulligan | 10/10 | 4037 days | 1% |
| Christophe Scieszka | 10/10 | 4054 days | 1% |
| Hubert | 8/10 | 4094 days | 1% |
| Ondrej Stepanek | 8/10 | 4330 days | 0% |
| Boneschova Jarka | 10/10 | 4330 days | 0% |
| Heike Heller | 10/10 | 4339 days | 0% |
| Andreas Mouteiro | 9/10 | 4339 days | 0% |
| Josefin Lind | 10/10 | 4340 days | 0% |
| Herman Holmgist | 10/10 | 4340 days | 0% |
| Felicitas | 9/10 | 4362 days | 0% |
| Antoine | 8/10 | 4370 days | 0% |
| Mara K | 10/10 | 4389 days | 2% |
| Emilie Chanbon | 10/10 | 4392 days | 2% |
| Alexis Redor | 10/10 | 4392 days | 2% |
| Julia Amberger | 8/10 | 4411 days | 2% |
| Annalina Drebald | 8/10 | 4411 days | 2% |
| balesdent | 9/10 | 4417 days | 2% |
| Alineet Gautier | 10/10 | 4420 days | 2% |
| Annika Schmidt | 10/10 | 4700 days | 2% |
| Patrick Stoeit | 10/10 | 4700 days | 2% |
| Audrey Ripoche | 9/10 | 4702 days | 2% |
| Rey Germain | 9/10 | 4702 days | 2% |
| Christofer Tonn | 10/10 | 4712 days | 2% |
| Ann Furlong | 10/10 | 4720 days | 2% |
| Trudy Ryan | 8/10 | 4720 days | 2% |
| Jill Fischer | 10/10 | 4726 days | 2% |
| Kim | 10/10 | 4726 days | 2% |
| Francois Marchar | 9/10 | 4736 days | 2% |
| Jan Zimmerman | 10/10 | 4741 days | 2% |
| Elvin Teo | 10/10 | 4754 days | 2% |
| Rob | 9/10 | 4802 days | 2% |
| Andreas Garbin | 10/10 | 4804 days | 2% |
| Joanna | 9/10 | 4822 days | 2% |
| Mellow | 10/10 | 4846 days | 2% |
| whalelover88 | 10/10 | 4999 days | 2% |
| Jos Schieveen | 8/10 | 5070 days | 2% |
| Goran Backlund | 9/10 | 5076 days | 2% |
| Nathan Sait | 10/10 | 5083 days | 2% |
| Toby Clark | 10/10 | 5083 days | 2% |
| Maxine Gilman | 10/10 | 5086 days | 2% |
| Harald | 9/10 | 5100 days | 2% |
| Dominik Langenegger | 9/10 | 5102 days | 2% |
| Rebecca Richardson | 9/10 | 5102 days | 2% |
| Andrew Powell | 9/10 | 5102 days | 2% |
| Peter Field | 10/10 | 5102 days | 2% |
| Eric Lombaard | 8/10 | 5103 days | 2% |
| Nicholas Prakenhammar | 10/10 | 5104 days | 2% |
| Peter Wall | 7/10 | 5104 days | 1% |
| Verne Heath | 8/10 | 5105 days | 2% |
| John O'Donnell | 10/10 | 5106 days | 2% |
| Paul Fairbrass | 10/10 | 5113 days | 2% |
| Frank Krivauek | 10/10 | 5114 days | 2% |
| Rocco Christian | 7/10 | 5114 days | 1% |
| Kurt & Noemi Buhler | 7/10 | 5115 days | 1% |
| Therese | 7/10 | 5118 days | 1% |
| Katie K | 9/10 | 5129 days | 2% |
| CMJ | 10/10 | 5151 days | 2% |
| Jacqueline | 10/10 | 5182 days | 2% |
| Marc & Pauline | 9/10 | 5188 days | 2% |
| Kevin & Chris | 9/10 | 5189 days | 2% |
| Robin & Sandra Dijke | 9/10 | 5191 days | 2% |
| Laura McCusker | 8/10 | 5198 days | 2% |
| Dexter | 10/10 | 5396 days | 2% |
| Jasmin Loeffler | 10/10 | 5402 days | 2% |
| Natascha Rachel | 10/10 | 5402 days | 2% |
| Res Kormann | 10/10 | 5415 days | 2% |
| Sarah James | 10/10 | 5425 days | 2% |
| Nick Taylor | 10/10 | 5425 days | 2% |
| Nicola Young | 10/10 | 5425 days | 2% |
| Stefan Elsenbruch | 9/10 | 5430 days | 2% |
| Stefanie | 7/10 | 5440 days | 1% |
| Koen Vanlede | 10/10 | 5443 days | 2% |
| Van Vliet | 8/10 | 5444 days | 2% |
| Vanessa Vogel | 10/10 | 5447 days | 2% |
| Marcel Camsch | 9/10 | 5449 days | 2% |
| Keely & Mark Haynes | 10/10 | 5450 days | 2% |
| Svea Sauter | 10/10 | 5450 days | 2% |
| henriket | 10/10 | 5451 days | 2% |
| Amanda Wells | 10/10 | 5451 days | 2% |
| K & J Overton | 9/10 | 5451 days | 2% |
| Jerry & Floon | 9/10 | 5455 days | 2% |
| Bartl | 10/10 | 5455 days | 2% |
| travellingfamilyof6 | 10/10 | 5457 days | 2% |
| WeddingMaven | 10/10 | 5457 days | 2% |
| Lieve Verdonck | 8/10 | 5458 days | 2% |
| Victoria Purver | 8/10 | 5460 days | 2% |
| Thelia Beament | 9/10 | 5460 days | 2% |
| Edwards | 9/10 | 5464 days | 2% |
| Mark Irwin | 9/10 | 5468 days | 2% |
| Agnes McMillan | 10/10 | 5469 days | 2% |
| Leslie | 9/10 | 5469 days | 2% |
| Selina Mueller | 10/10 | 5471 days | 2% |
| Jill Dean | 10/10 | 5472 days | 2% |
| Chloe Finster | 10/10 | 5472 days | 2% |
| Vanderhorst | 9/10 | 5473 days | 2% |
| Judith K. | 10/10 | 5475 days | 2% |
| Amanda Wallace | 9/10 | 5475 days | 2% |
| Mark Aarts | 10/10 | 5476 days | 2% |
| Forestal Youri | 9/10 | 5477 days | 2% |
| Dave and Lin Mungham | 10/10 | 5478 days | 2% |
| Jane Hancock | 10/10 | 5480 days | 2% |
| Stephi | 10/10 | 5485 days | 2% |
| Amanda | 10/10 | 5485 days | 2% |
| Mick Doherty | 9/10 | 5516 days | 2% |
| hendrik king | 7/10 | 5516 days | 1% |
| Shoe | 10/10 | 5547 days | 2% |
| marcvergroesen | 9/10 | 5761 days | 2% |
| Jenny Leyland | 9/10 | 5761 days | 2% |
| MarcyMark | 10/10 | 5791 days | 2% |
| katrina Marshall | 10/10 | 5808 days | 2% |
| Von | 9/10 | 5822 days | 2% |
| Judith | 8/10 | 5828 days | 2% |
| Doris Resch | 10/10 | 5828 days | 2% |
| Sheila Morgan | 10/10 | 5831 days | 2% |
| Maria Newton | 9/10 | 5832 days | 2% |
| Faller | 10/10 | 5845 days | 2% |
| Wim Van Gastel | 8/10 | 5848 days | 2% |
| Laura Walters | 9/10 | 5849 days | 2% |
| Chance McGuire | 10/10 | 5850 days | 2% |
| cees juffermans | 9/10 | 5863 days | 2% |
| Markus | 10/10 | 5866 days | 2% |
| Grainne Ahern | 10/10 | 5881 days | 2% |
| sutuckey | 10/10 | 5881 days | 2% |
| Honeymooners | 10/10 | 5881 days | 2% |
| sophiep | 9/10 | 5896 days | 2% |
| chuckchallenger | 10/10 | 5912 days | 2% |
| mdarras | 9/10 | 5916 days | 2% |
| joramv | 9/10 | 5916 days | 2% |
| Michelle Kraemer | 10/10 | 5919 days | 2% |
| Kimberly Skyes | 10/10 | 5919 days | 2% |
| Ruth Colmer | 9/10 | 5922 days | 2% |
| maleta | 8/10 | 5933 days | 2% |
| Simon_and_Jane_OZ | 9/10 | 6126 days | 2% |
| JoF | 10/10 | 6148 days | 2% |
| Christian Kamm | 10/10 | 6153 days | 2% |
| Michael Maddams | 7/10 | 6154 days | 1% |
| Joanna Harrnon | 10/10 | 6155 days | 2% |
| Sarah | 8/10 | 6155 days | 2% |
| David | 10/10 | 6156 days | 2% |
| jjakkeren | 9/10 | 6156 days | 2% |
| Alanna | 10/10 | 6157 days | 2% |
| ElissaH | 10/10 | 6158 days | 2% |
| Andrew Smith | 9/10 | 6162 days | 2% |
| Jean | 10/10 | 6172 days | 2% |
| CarinaB1 | 10/10 | 6177 days | 2% |
| Lindsey | 9/10 | 6187 days | 2% |
| Lisa | 10/10 | 6192 days | 2% |
| Laura | 8/10 | 6195 days | 2% |
| kiwibrit86 | 9/10 | 6197 days | 2% |
| Visken | 10/10 | 6199 days | 2% |
| Christina | 10/10 | 6204 days | 2% |
| RachaelO | 10/10 | 6206 days | 2% |
| Marianne | 10/10 | 6206 days | 2% |
| Peppa | 10/10 | 6206 days | 2% |
| Jackie | 9/10 | 6220 days | 2% |
| Patrick | 9/10 | 6220 days | 2% |
| Carla | 8/10 | 6222 days | 2% |
| Keith | 10/10 | 6227 days | 2% |
| Saskia | 9/10 | 6228 days | 2% |
| Patrick | 10/10 | 6232 days | 2% |
| Charlie | 9/10 | 6236 days | 2% |
| Ten | 10/10 | 6236 days | 2% |
| Kevin Dangerfield | 10/10 | 6245 days | 2% |
| Graham | 9/10 | 6260 days | 2% |
| David | 10/10 | 6269 days | 2% |
| Eveline | 10/10 | 6269 days | 2% |
| Mette | 10/10 | 6276 days | 2% |
| Rowan | 9/10 | 6301 days | 2% |
| Hanna | 10/10 | 6301 days | 2% |
| Sally Walker | 10/10 | 6307 days | 2% |
| abby | 10/10 | 6312 days | 2% |
| Paul | 10/10 | 6323 days | 2% |
| Peter | 10/10 | 6331 days | 2% |
| Anna | 10/10 | 6353 days | 2% |
| Liz | 9/10 | 6362 days | 2% |
| Laura | 8/10 | 6362 days | 2% |
| Amy Shields | 7/10 | 6366 days | 1% |
| Erin | 9/10 | 6374 days | 2% |
| George Burgas | 7/10 | 6380 days | 1% |
| Sharon Curly | 7/10 | 6388 days | 1% |
| Peddy | 8/10 | 6391 days | 2% |
| Christine | 9/10 | 6404 days | 2% |
| Charlie Bond | 8/10 | 6437 days | 2% |
| SandyS | 10/10 | 6491 days | 2% |
| BexStar | 10/10 | 6504 days | 2% |
| Galen | 9/10 | 6522 days | 2% |
| Monica Black | 10/10 | 6522 days | 2% |
| Denise | 10/10 | 6539 days | 2% |
| Ria | 9/10 | 6543 days | 2% |
| Christian | 7/10 | 6543 days | 1% |
| Wiebke | 9/10 | 6547 days | 2% |
| Phil Connelly | 9/10 | 6548 days | 2% |
| Amanda | 9/10 | 6554 days | 2% |
| Erwin de Kleijn | 9/10 | 6561 days | 2% |
| Nick | 10/10 | 6570 days | 2% |
| John | 9/10 | 6570 days | 2% |
| Sandra Gustafson | 10/10 | 6598 days | 2% |
| Jo | 10/10 | 6598 days | 2% |
| Helena | 10/10 | 6599 days | 2% |
| Seldam | 8/10 | 6604 days | 2% |
| Andrew Purdam | 7/10 | 6612 days | 1% |
| Gerber Liselotte | 10/10 | 6630 days | 2% |
| Gabriela Herger | 8/10 | 6638 days | 2% |
| Jane Coleman | 8/10 | 6641 days | 2% |
| Wendy Williams | 9/10 | 6648 days | 2% |
| Claire | 8/10 | 6872 days | 2% |
| Will | 9/10 | 6872 days | 2% |
| JanKovar | 10/10 | 6874 days | 2% |
| Justin | 10/10 | 6877 days | 2% |
| Beth | 9/10 | 6883 days | 2% |
| Hanneke | 9/10 | 6884 days | 2% |
| Cat | 8/10 | 6886 days | 2% |
| MartinTrenker | 9/10 | 6892 days | 2% |
| Janneke | 10/10 | 6893 days | 2% |
| Renee | 9/10 | 6896 days | 2% |
| Elke | 8/10 | 6911 days | 2% |
| Malon | 10/10 | 6912 days | 2% |
| Ralph | 10/10 | 6921 days | 2% |
| Lucy | 10/10 | 6921 days | 2% |
| Gordon | 8/10 | 6933 days | 2% |
| Beate | 9/10 | 6934 days | 2% |
| MartinJago | 8/10 | 6945 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
-4.15% Adjustment
There may be an adjustment if this experience hasn't received any reviews within the last 51 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 | -4.09% |
| 198 | -4.11% |
| 199 | -4.13% |
| 200 | -4.15% |
| 201 | -4.17% |
| 202 | -4.19% |
| 203 | -4.22% |
| … | … |
Balancing Adjustment
1.20% 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.