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
92.71%
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 | 836 days | 100% |
| Lisa | 10/10 | 1535 days | 16% |
| Michael Holm | 9/10 | 3052 days | 4% |
| Stefan Zink | 10/10 | 3304 days | 4% |
| Fentrup | 9/10 | 3310 days | 3% |
| Katharina Koch | 10/10 | 3314 days | 3% |
| Aurelie and Ben Marie | 9/10 | 3316 days | 3% |
| Sebastian Braun | 9/10 | 3404 days | 3% |
| Joanne Woo | 10/10 | 3421 days | 3% |
| Chris | 6/10 | 3452 days | 3% |
| Olivier Reculeau | 10/10 | 3638 days | 2% |
| Susanne Breudel | 10/10 | 3643 days | 2% |
| Josh Legge | 10/10 | 3651 days | 2% |
| Daniel Weber | 9/10 | 3653 days | 2% |
| Virginia Fradin | 10/10 | 3657 days | 2% |
| Olivier Anciaux | 9/10 | 3660 days | 2% |
| Wendy van Boom | 10/10 | 3660 days | 2% |
| Bas Hoogteijling | 10/10 | 3663 days | 2% |
| Mira Huckfield | 10/10 | 3673 days | 2% |
| Maike Santelmann | 10/10 | 3685 days | 2% |
| Levin Stuers | 10/10 | 3690 days | 2% |
| magdalena gomez haedo | 9/10 | 3693 days | 2% |
| Lucca Weisbender | 10/10 | 3695 days | 2% |
| Anna Scholten | 10/10 | 3696 days | 2% |
| Nils Kissel | 10/10 | 3706 days | 2% |
| Madita and Lisann | 10/10 | 3742 days | 2% |
| sanneke tangel | 10/10 | 3748 days | 2% |
| Georgia Coleman | 10/10 | 3748 days | 2% |
| Virgil Spruit | 8/10 | 3752 days | 2% |
| Xue Rong Kok | 7/10 | 3757 days | 2% |
| Anthony Jacobs | 10/10 | 3879 days | 2% |
| Sofie Jebsen | 10/10 | 4022 days | 1% |
| Tobias | 10/10 | 4022 days | 1% |
| Annika Funk | 10/10 | 4058 days | 1% |
| Dawn Mulligan | 10/10 | 4074 days | 1% |
| Christophe Scieszka | 10/10 | 4091 days | 1% |
| Hubert | 8/10 | 4131 days | 1% |
| Ondrej Stepanek | 8/10 | 4367 days | 0% |
| Boneschova Jarka | 10/10 | 4367 days | 0% |
| Heike Heller | 10/10 | 4376 days | 0% |
| Andreas Mouteiro | 9/10 | 4376 days | 0% |
| Josefin Lind | 10/10 | 4377 days | 0% |
| Herman Holmgist | 10/10 | 4377 days | 0% |
| Felicitas | 9/10 | 4399 days | 2% |
| Antoine | 8/10 | 4407 days | 2% |
| Mara K | 10/10 | 4426 days | 2% |
| Emilie Chanbon | 10/10 | 4429 days | 2% |
| Alexis Redor | 10/10 | 4429 days | 2% |
| Julia Amberger | 8/10 | 4448 days | 2% |
| Annalina Drebald | 8/10 | 4448 days | 2% |
| balesdent | 9/10 | 4454 days | 2% |
| Alineet Gautier | 10/10 | 4457 days | 2% |
| Annika Schmidt | 10/10 | 4737 days | 2% |
| Patrick Stoeit | 10/10 | 4737 days | 2% |
| Audrey Ripoche | 9/10 | 4739 days | 2% |
| Rey Germain | 9/10 | 4739 days | 2% |
| Christofer Tonn | 10/10 | 4749 days | 2% |
| Ann Furlong | 10/10 | 4757 days | 2% |
| Trudy Ryan | 8/10 | 4757 days | 2% |
| Jill Fischer | 10/10 | 4763 days | 2% |
| Kim | 10/10 | 4763 days | 2% |
| Francois Marchar | 9/10 | 4773 days | 2% |
| Jan Zimmerman | 10/10 | 4778 days | 2% |
| Elvin Teo | 10/10 | 4791 days | 2% |
| Rob | 9/10 | 4839 days | 2% |
| Andreas Garbin | 10/10 | 4841 days | 2% |
| Joanna | 9/10 | 4859 days | 2% |
| Mellow | 10/10 | 4883 days | 2% |
| whalelover88 | 10/10 | 5036 days | 2% |
| Jos Schieveen | 8/10 | 5107 days | 2% |
| Goran Backlund | 9/10 | 5113 days | 2% |
| Nathan Sait | 10/10 | 5120 days | 2% |
| Toby Clark | 10/10 | 5120 days | 2% |
| Maxine Gilman | 10/10 | 5123 days | 2% |
| Harald | 9/10 | 5137 days | 2% |
| Dominik Langenegger | 9/10 | 5139 days | 2% |
| Rebecca Richardson | 9/10 | 5139 days | 2% |
| Andrew Powell | 9/10 | 5139 days | 2% |
| Peter Field | 10/10 | 5139 days | 2% |
| Eric Lombaard | 8/10 | 5140 days | 2% |
| Nicholas Prakenhammar | 10/10 | 5141 days | 2% |
| Peter Wall | 7/10 | 5141 days | 2% |
| Verne Heath | 8/10 | 5142 days | 2% |
| John O'Donnell | 10/10 | 5143 days | 2% |
| Paul Fairbrass | 10/10 | 5150 days | 2% |
| Frank Krivauek | 10/10 | 5151 days | 2% |
| Rocco Christian | 7/10 | 5151 days | 2% |
| Kurt & Noemi Buhler | 7/10 | 5152 days | 2% |
| Therese | 7/10 | 5155 days | 2% |
| Katie K | 9/10 | 5166 days | 2% |
| CMJ | 10/10 | 5188 days | 2% |
| Jacqueline | 10/10 | 5219 days | 2% |
| Marc & Pauline | 9/10 | 5225 days | 2% |
| Kevin & Chris | 9/10 | 5226 days | 2% |
| Robin & Sandra Dijke | 9/10 | 5228 days | 2% |
| Laura McCusker | 8/10 | 5235 days | 2% |
| Dexter | 10/10 | 5433 days | 2% |
| Jasmin Loeffler | 10/10 | 5439 days | 2% |
| Natascha Rachel | 10/10 | 5439 days | 2% |
| Res Kormann | 10/10 | 5452 days | 2% |
| Sarah James | 10/10 | 5462 days | 2% |
| Nick Taylor | 10/10 | 5462 days | 2% |
| Nicola Young | 10/10 | 5462 days | 2% |
| Stefan Elsenbruch | 9/10 | 5467 days | 2% |
| Stefanie | 7/10 | 5477 days | 2% |
| Koen Vanlede | 10/10 | 5480 days | 2% |
| Van Vliet | 8/10 | 5481 days | 2% |
| Vanessa Vogel | 10/10 | 5484 days | 2% |
| Marcel Camsch | 9/10 | 5486 days | 2% |
| Keely & Mark Haynes | 10/10 | 5487 days | 2% |
| Svea Sauter | 10/10 | 5487 days | 2% |
| henriket | 10/10 | 5488 days | 2% |
| Amanda Wells | 10/10 | 5488 days | 2% |
| K & J Overton | 9/10 | 5488 days | 2% |
| Jerry & Floon | 9/10 | 5492 days | 2% |
| Bartl | 10/10 | 5492 days | 2% |
| travellingfamilyof6 | 10/10 | 5494 days | 2% |
| WeddingMaven | 10/10 | 5494 days | 2% |
| Lieve Verdonck | 8/10 | 5495 days | 2% |
| Victoria Purver | 8/10 | 5497 days | 2% |
| Thelia Beament | 9/10 | 5497 days | 2% |
| Edwards | 9/10 | 5501 days | 2% |
| Mark Irwin | 9/10 | 5505 days | 2% |
| Agnes McMillan | 10/10 | 5506 days | 2% |
| Leslie | 9/10 | 5506 days | 2% |
| Selina Mueller | 10/10 | 5508 days | 2% |
| Jill Dean | 10/10 | 5509 days | 2% |
| Chloe Finster | 10/10 | 5509 days | 2% |
| Vanderhorst | 9/10 | 5510 days | 2% |
| Judith K. | 10/10 | 5512 days | 2% |
| Amanda Wallace | 9/10 | 5512 days | 2% |
| Mark Aarts | 10/10 | 5513 days | 2% |
| Forestal Youri | 9/10 | 5514 days | 2% |
| Dave and Lin Mungham | 10/10 | 5515 days | 2% |
| Jane Hancock | 10/10 | 5517 days | 2% |
| Stephi | 10/10 | 5522 days | 2% |
| Amanda | 10/10 | 5522 days | 2% |
| Mick Doherty | 9/10 | 5553 days | 2% |
| hendrik king | 7/10 | 5553 days | 2% |
| Shoe | 10/10 | 5584 days | 2% |
| marcvergroesen | 9/10 | 5798 days | 2% |
| Jenny Leyland | 9/10 | 5798 days | 2% |
| MarcyMark | 10/10 | 5828 days | 2% |
| katrina Marshall | 10/10 | 5845 days | 2% |
| Von | 9/10 | 5859 days | 2% |
| Judith | 8/10 | 5865 days | 2% |
| Doris Resch | 10/10 | 5865 days | 2% |
| Sheila Morgan | 10/10 | 5868 days | 2% |
| Maria Newton | 9/10 | 5869 days | 2% |
| Faller | 10/10 | 5882 days | 2% |
| Wim Van Gastel | 8/10 | 5885 days | 2% |
| Laura Walters | 9/10 | 5886 days | 2% |
| Chance McGuire | 10/10 | 5887 days | 2% |
| cees juffermans | 9/10 | 5900 days | 2% |
| Markus | 10/10 | 5903 days | 2% |
| Grainne Ahern | 10/10 | 5918 days | 2% |
| sutuckey | 10/10 | 5918 days | 2% |
| Honeymooners | 10/10 | 5918 days | 2% |
| sophiep | 9/10 | 5933 days | 2% |
| chuckchallenger | 10/10 | 5949 days | 2% |
| mdarras | 9/10 | 5953 days | 2% |
| joramv | 9/10 | 5953 days | 2% |
| Michelle Kraemer | 10/10 | 5956 days | 2% |
| Kimberly Skyes | 10/10 | 5956 days | 2% |
| Ruth Colmer | 9/10 | 5959 days | 2% |
| maleta | 8/10 | 5970 days | 2% |
| Simon_and_Jane_OZ | 9/10 | 6163 days | 2% |
| JoF | 10/10 | 6185 days | 2% |
| Christian Kamm | 10/10 | 6190 days | 2% |
| Michael Maddams | 7/10 | 6191 days | 2% |
| Joanna Harrnon | 10/10 | 6192 days | 2% |
| Sarah | 8/10 | 6192 days | 2% |
| David | 10/10 | 6193 days | 2% |
| jjakkeren | 9/10 | 6193 days | 2% |
| Alanna | 10/10 | 6194 days | 2% |
| ElissaH | 10/10 | 6195 days | 2% |
| Andrew Smith | 9/10 | 6199 days | 2% |
| Jean | 10/10 | 6209 days | 2% |
| CarinaB1 | 10/10 | 6214 days | 2% |
| Lindsey | 9/10 | 6224 days | 2% |
| Lisa | 10/10 | 6229 days | 2% |
| Laura | 8/10 | 6232 days | 2% |
| kiwibrit86 | 9/10 | 6234 days | 2% |
| Visken | 10/10 | 6236 days | 2% |
| Christina | 10/10 | 6241 days | 2% |
| RachaelO | 10/10 | 6243 days | 2% |
| Marianne | 10/10 | 6243 days | 2% |
| Peppa | 10/10 | 6243 days | 2% |
| Jackie | 9/10 | 6257 days | 2% |
| Patrick | 9/10 | 6257 days | 2% |
| Carla | 8/10 | 6259 days | 2% |
| Keith | 10/10 | 6264 days | 2% |
| Saskia | 9/10 | 6265 days | 2% |
| Patrick | 10/10 | 6269 days | 2% |
| Charlie | 9/10 | 6273 days | 2% |
| Ten | 10/10 | 6273 days | 2% |
| Kevin Dangerfield | 10/10 | 6282 days | 2% |
| Graham | 9/10 | 6297 days | 2% |
| David | 10/10 | 6306 days | 2% |
| Eveline | 10/10 | 6306 days | 2% |
| Mette | 10/10 | 6313 days | 2% |
| Rowan | 9/10 | 6338 days | 2% |
| Hanna | 10/10 | 6338 days | 2% |
| Sally Walker | 10/10 | 6344 days | 2% |
| abby | 10/10 | 6349 days | 2% |
| Paul | 10/10 | 6360 days | 2% |
| Peter | 10/10 | 6368 days | 2% |
| Anna | 10/10 | 6390 days | 2% |
| Liz | 9/10 | 6399 days | 2% |
| Laura | 8/10 | 6399 days | 2% |
| Amy Shields | 7/10 | 6403 days | 2% |
| Erin | 9/10 | 6411 days | 2% |
| George Burgas | 7/10 | 6417 days | 2% |
| Sharon Curly | 7/10 | 6425 days | 2% |
| Peddy | 8/10 | 6428 days | 2% |
| Christine | 9/10 | 6441 days | 2% |
| Charlie Bond | 8/10 | 6474 days | 2% |
| SandyS | 10/10 | 6528 days | 2% |
| BexStar | 10/10 | 6541 days | 2% |
| Galen | 9/10 | 6559 days | 2% |
| Monica Black | 10/10 | 6559 days | 2% |
| Denise | 10/10 | 6576 days | 2% |
| Ria | 9/10 | 6580 days | 2% |
| Christian | 7/10 | 6580 days | 2% |
| Wiebke | 9/10 | 6584 days | 2% |
| Phil Connelly | 9/10 | 6585 days | 2% |
| Amanda | 9/10 | 6591 days | 2% |
| Erwin de Kleijn | 9/10 | 6598 days | 2% |
| Nick | 10/10 | 6607 days | 2% |
| John | 9/10 | 6607 days | 2% |
| Sandra Gustafson | 10/10 | 6635 days | 2% |
| Jo | 10/10 | 6635 days | 2% |
| Helena | 10/10 | 6636 days | 2% |
| Seldam | 8/10 | 6641 days | 2% |
| Andrew Purdam | 7/10 | 6649 days | 2% |
| Gerber Liselotte | 10/10 | 6667 days | 2% |
| Gabriela Herger | 8/10 | 6675 days | 2% |
| Jane Coleman | 8/10 | 6678 days | 2% |
| Wendy Williams | 9/10 | 6685 days | 2% |
| Claire | 8/10 | 6909 days | 2% |
| Will | 9/10 | 6909 days | 2% |
| JanKovar | 10/10 | 6911 days | 2% |
| Justin | 10/10 | 6914 days | 2% |
| Beth | 9/10 | 6920 days | 2% |
| Hanneke | 9/10 | 6921 days | 2% |
| Cat | 8/10 | 6923 days | 2% |
| MartinTrenker | 9/10 | 6929 days | 2% |
| Janneke | 10/10 | 6930 days | 2% |
| Renee | 9/10 | 6933 days | 2% |
| Elke | 8/10 | 6948 days | 2% |
| Malon | 10/10 | 6949 days | 2% |
| Ralph | 10/10 | 6958 days | 2% |
| Lucy | 10/10 | 6958 days | 2% |
| Gordon | 8/10 | 6970 days | 2% |
| Beate | 9/10 | 6971 days | 2% |
| MartinJago | 8/10 | 6982 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
-3.98% Adjustment
There may be an adjustment if this experience hasn't received any reviews within the last 57 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 | -3.92% |
| 198 | -3.94% |
| 199 | -3.96% |
| 200 | -3.98% |
| 201 | -4.00% |
| 202 | -4.02% |
| 203 | -4.04% |
| … | … |
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.