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
92.71%
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 | 837 days | 100% |
| Lisa | 10/10 | 1536 days | 16% |
| Michael Holm | 9/10 | 3053 days | 4% |
| Stefan Zink | 10/10 | 3305 days | 4% |
| Fentrup | 9/10 | 3311 days | 3% |
| Katharina Koch | 10/10 | 3315 days | 3% |
| Aurelie and Ben Marie | 9/10 | 3317 days | 3% |
| Sebastian Braun | 9/10 | 3405 days | 3% |
| Joanne Woo | 10/10 | 3423 days | 3% |
| Chris | 6/10 | 3454 days | 3% |
| Olivier Reculeau | 10/10 | 3639 days | 2% |
| Susanne Breudel | 10/10 | 3644 days | 2% |
| Josh Legge | 10/10 | 3652 days | 2% |
| Daniel Weber | 9/10 | 3654 days | 2% |
| Virginia Fradin | 10/10 | 3658 days | 2% |
| Olivier Anciaux | 9/10 | 3661 days | 2% |
| Wendy van Boom | 10/10 | 3661 days | 2% |
| Bas Hoogteijling | 10/10 | 3664 days | 2% |
| Mira Huckfield | 10/10 | 3674 days | 2% |
| Maike Santelmann | 10/10 | 3686 days | 2% |
| Levin Stuers | 10/10 | 3691 days | 2% |
| magdalena gomez haedo | 9/10 | 3694 days | 2% |
| Lucca Weisbender | 10/10 | 3697 days | 2% |
| Anna Scholten | 10/10 | 3697 days | 2% |
| Nils Kissel | 10/10 | 3707 days | 2% |
| Madita and Lisann | 10/10 | 3743 days | 2% |
| sanneke tangel | 10/10 | 3749 days | 2% |
| Georgia Coleman | 10/10 | 3749 days | 2% |
| Virgil Spruit | 8/10 | 3753 days | 2% |
| Xue Rong Kok | 7/10 | 3759 days | 2% |
| Anthony Jacobs | 10/10 | 3881 days | 2% |
| Sofie Jebsen | 10/10 | 4023 days | 1% |
| Tobias | 10/10 | 4023 days | 1% |
| Annika Funk | 10/10 | 4059 days | 1% |
| Dawn Mulligan | 10/10 | 4075 days | 1% |
| Christophe Scieszka | 10/10 | 4093 days | 1% |
| Hubert | 8/10 | 4132 days | 1% |
| Ondrej Stepanek | 8/10 | 4368 days | 0% |
| Boneschova Jarka | 10/10 | 4368 days | 0% |
| Heike Heller | 10/10 | 4377 days | 0% |
| Andreas Mouteiro | 9/10 | 4377 days | 0% |
| Josefin Lind | 10/10 | 4378 days | 0% |
| Herman Holmgist | 10/10 | 4378 days | 0% |
| Felicitas | 9/10 | 4400 days | 2% |
| Antoine | 8/10 | 4408 days | 2% |
| Mara K | 10/10 | 4427 days | 2% |
| Emilie Chanbon | 10/10 | 4430 days | 2% |
| Alexis Redor | 10/10 | 4430 days | 2% |
| Julia Amberger | 8/10 | 4449 days | 2% |
| Annalina Drebald | 8/10 | 4449 days | 2% |
| balesdent | 9/10 | 4455 days | 2% |
| Alineet Gautier | 10/10 | 4458 days | 2% |
| Annika Schmidt | 10/10 | 4738 days | 2% |
| Patrick Stoeit | 10/10 | 4738 days | 2% |
| Audrey Ripoche | 9/10 | 4740 days | 2% |
| Rey Germain | 9/10 | 4740 days | 2% |
| Christofer Tonn | 10/10 | 4750 days | 2% |
| Ann Furlong | 10/10 | 4758 days | 2% |
| Trudy Ryan | 8/10 | 4758 days | 2% |
| Jill Fischer | 10/10 | 4764 days | 2% |
| Kim | 10/10 | 4764 days | 2% |
| Francois Marchar | 9/10 | 4774 days | 2% |
| Jan Zimmerman | 10/10 | 4779 days | 2% |
| Elvin Teo | 10/10 | 4792 days | 2% |
| Rob | 9/10 | 4840 days | 2% |
| Andreas Garbin | 10/10 | 4842 days | 2% |
| Joanna | 9/10 | 4860 days | 2% |
| Mellow | 10/10 | 4884 days | 2% |
| whalelover88 | 10/10 | 5037 days | 2% |
| Jos Schieveen | 8/10 | 5108 days | 2% |
| Goran Backlund | 9/10 | 5114 days | 2% |
| Nathan Sait | 10/10 | 5121 days | 2% |
| Toby Clark | 10/10 | 5121 days | 2% |
| Maxine Gilman | 10/10 | 5124 days | 2% |
| Harald | 9/10 | 5138 days | 2% |
| Dominik Langenegger | 9/10 | 5140 days | 2% |
| Rebecca Richardson | 9/10 | 5140 days | 2% |
| Andrew Powell | 9/10 | 5140 days | 2% |
| Peter Field | 10/10 | 5140 days | 2% |
| Eric Lombaard | 8/10 | 5141 days | 2% |
| Nicholas Prakenhammar | 10/10 | 5142 days | 2% |
| Peter Wall | 7/10 | 5142 days | 2% |
| Verne Heath | 8/10 | 5143 days | 2% |
| John O'Donnell | 10/10 | 5144 days | 2% |
| Paul Fairbrass | 10/10 | 5151 days | 2% |
| Frank Krivauek | 10/10 | 5152 days | 2% |
| Rocco Christian | 7/10 | 5152 days | 2% |
| Kurt & Noemi Buhler | 7/10 | 5153 days | 2% |
| Therese | 7/10 | 5156 days | 2% |
| Katie K | 9/10 | 5167 days | 2% |
| CMJ | 10/10 | 5189 days | 2% |
| Jacqueline | 10/10 | 5220 days | 2% |
| Marc & Pauline | 9/10 | 5226 days | 2% |
| Kevin & Chris | 9/10 | 5227 days | 2% |
| Robin & Sandra Dijke | 9/10 | 5229 days | 2% |
| Laura McCusker | 8/10 | 5236 days | 2% |
| Dexter | 10/10 | 5434 days | 2% |
| Jasmin Loeffler | 10/10 | 5440 days | 2% |
| Natascha Rachel | 10/10 | 5440 days | 2% |
| Res Kormann | 10/10 | 5453 days | 2% |
| Sarah James | 10/10 | 5463 days | 2% |
| Nick Taylor | 10/10 | 5463 days | 2% |
| Nicola Young | 10/10 | 5463 days | 2% |
| Stefan Elsenbruch | 9/10 | 5468 days | 2% |
| Stefanie | 7/10 | 5478 days | 2% |
| Koen Vanlede | 10/10 | 5481 days | 2% |
| Van Vliet | 8/10 | 5482 days | 2% |
| Vanessa Vogel | 10/10 | 5485 days | 2% |
| Marcel Camsch | 9/10 | 5487 days | 2% |
| Keely & Mark Haynes | 10/10 | 5488 days | 2% |
| Svea Sauter | 10/10 | 5488 days | 2% |
| henriket | 10/10 | 5489 days | 2% |
| Amanda Wells | 10/10 | 5489 days | 2% |
| K & J Overton | 9/10 | 5489 days | 2% |
| Jerry & Floon | 9/10 | 5493 days | 2% |
| Bartl | 10/10 | 5493 days | 2% |
| travellingfamilyof6 | 10/10 | 5495 days | 2% |
| WeddingMaven | 10/10 | 5495 days | 2% |
| Lieve Verdonck | 8/10 | 5496 days | 2% |
| Victoria Purver | 8/10 | 5498 days | 2% |
| Thelia Beament | 9/10 | 5498 days | 2% |
| Edwards | 9/10 | 5502 days | 2% |
| Mark Irwin | 9/10 | 5506 days | 2% |
| Agnes McMillan | 10/10 | 5507 days | 2% |
| Leslie | 9/10 | 5507 days | 2% |
| Selina Mueller | 10/10 | 5509 days | 2% |
| Jill Dean | 10/10 | 5510 days | 2% |
| Chloe Finster | 10/10 | 5510 days | 2% |
| Vanderhorst | 9/10 | 5511 days | 2% |
| Judith K. | 10/10 | 5513 days | 2% |
| Amanda Wallace | 9/10 | 5513 days | 2% |
| Mark Aarts | 10/10 | 5514 days | 2% |
| Forestal Youri | 9/10 | 5515 days | 2% |
| Dave and Lin Mungham | 10/10 | 5516 days | 2% |
| Jane Hancock | 10/10 | 5518 days | 2% |
| Stephi | 10/10 | 5523 days | 2% |
| Amanda | 10/10 | 5523 days | 2% |
| Mick Doherty | 9/10 | 5554 days | 2% |
| hendrik king | 7/10 | 5554 days | 2% |
| Shoe | 10/10 | 5585 days | 2% |
| marcvergroesen | 9/10 | 5799 days | 2% |
| Jenny Leyland | 9/10 | 5799 days | 2% |
| MarcyMark | 10/10 | 5829 days | 2% |
| katrina Marshall | 10/10 | 5846 days | 2% |
| Von | 9/10 | 5860 days | 2% |
| Judith | 8/10 | 5866 days | 2% |
| Doris Resch | 10/10 | 5866 days | 2% |
| Sheila Morgan | 10/10 | 5869 days | 2% |
| Maria Newton | 9/10 | 5870 days | 2% |
| Faller | 10/10 | 5883 days | 2% |
| Wim Van Gastel | 8/10 | 5886 days | 2% |
| Laura Walters | 9/10 | 5887 days | 2% |
| Chance McGuire | 10/10 | 5888 days | 2% |
| cees juffermans | 9/10 | 5901 days | 2% |
| Markus | 10/10 | 5904 days | 2% |
| Grainne Ahern | 10/10 | 5919 days | 2% |
| sutuckey | 10/10 | 5919 days | 2% |
| Honeymooners | 10/10 | 5919 days | 2% |
| sophiep | 9/10 | 5934 days | 2% |
| chuckchallenger | 10/10 | 5950 days | 2% |
| mdarras | 9/10 | 5954 days | 2% |
| joramv | 9/10 | 5954 days | 2% |
| Michelle Kraemer | 10/10 | 5957 days | 2% |
| Kimberly Skyes | 10/10 | 5957 days | 2% |
| Ruth Colmer | 9/10 | 5960 days | 2% |
| maleta | 8/10 | 5971 days | 2% |
| Simon_and_Jane_OZ | 9/10 | 6164 days | 2% |
| JoF | 10/10 | 6186 days | 2% |
| Christian Kamm | 10/10 | 6191 days | 2% |
| Michael Maddams | 7/10 | 6192 days | 2% |
| Joanna Harrnon | 10/10 | 6193 days | 2% |
| Sarah | 8/10 | 6194 days | 2% |
| David | 10/10 | 6194 days | 2% |
| jjakkeren | 9/10 | 6194 days | 2% |
| Alanna | 10/10 | 6196 days | 2% |
| ElissaH | 10/10 | 6197 days | 2% |
| Andrew Smith | 9/10 | 6200 days | 2% |
| Jean | 10/10 | 6211 days | 2% |
| CarinaB1 | 10/10 | 6215 days | 2% |
| Lindsey | 9/10 | 6226 days | 2% |
| Lisa | 10/10 | 6231 days | 2% |
| Laura | 8/10 | 6234 days | 2% |
| kiwibrit86 | 9/10 | 6236 days | 2% |
| Visken | 10/10 | 6238 days | 2% |
| Christina | 10/10 | 6243 days | 2% |
| RachaelO | 10/10 | 6244 days | 2% |
| Marianne | 10/10 | 6245 days | 2% |
| Peppa | 10/10 | 6245 days | 2% |
| Jackie | 9/10 | 6259 days | 2% |
| Patrick | 9/10 | 6259 days | 2% |
| Carla | 8/10 | 6261 days | 2% |
| Keith | 10/10 | 6266 days | 2% |
| Saskia | 9/10 | 6267 days | 2% |
| Patrick | 10/10 | 6271 days | 2% |
| Charlie | 9/10 | 6275 days | 2% |
| Ten | 10/10 | 6275 days | 2% |
| Kevin Dangerfield | 10/10 | 6284 days | 2% |
| Graham | 9/10 | 6299 days | 2% |
| David | 10/10 | 6308 days | 2% |
| Eveline | 10/10 | 6308 days | 2% |
| Mette | 10/10 | 6315 days | 2% |
| Rowan | 9/10 | 6340 days | 2% |
| Hanna | 10/10 | 6340 days | 2% |
| Sally Walker | 10/10 | 6345 days | 2% |
| abby | 10/10 | 6351 days | 2% |
| Paul | 10/10 | 6362 days | 2% |
| Peter | 10/10 | 6370 days | 2% |
| Anna | 10/10 | 6392 days | 2% |
| Liz | 9/10 | 6401 days | 2% |
| Laura | 8/10 | 6401 days | 2% |
| Amy Shields | 7/10 | 6405 days | 2% |
| Erin | 9/10 | 6413 days | 2% |
| George Burgas | 7/10 | 6419 days | 2% |
| Sharon Curly | 7/10 | 6427 days | 2% |
| Peddy | 8/10 | 6429 days | 2% |
| Christine | 9/10 | 6443 days | 2% |
| Charlie Bond | 8/10 | 6476 days | 2% |
| SandyS | 10/10 | 6529 days | 2% |
| BexStar | 10/10 | 6543 days | 2% |
| Galen | 9/10 | 6560 days | 2% |
| Monica Black | 10/10 | 6560 days | 2% |
| Denise | 10/10 | 6577 days | 2% |
| Ria | 9/10 | 6581 days | 2% |
| Christian | 7/10 | 6581 days | 2% |
| Wiebke | 9/10 | 6585 days | 2% |
| Phil Connelly | 9/10 | 6586 days | 2% |
| Amanda | 9/10 | 6592 days | 2% |
| Erwin de Kleijn | 9/10 | 6600 days | 2% |
| Nick | 10/10 | 6608 days | 2% |
| John | 9/10 | 6608 days | 2% |
| Sandra Gustafson | 10/10 | 6636 days | 2% |
| Jo | 10/10 | 6636 days | 2% |
| Helena | 10/10 | 6637 days | 2% |
| Seldam | 8/10 | 6642 days | 2% |
| Andrew Purdam | 7/10 | 6650 days | 2% |
| Gerber Liselotte | 10/10 | 6668 days | 2% |
| Gabriela Herger | 8/10 | 6676 days | 2% |
| Jane Coleman | 8/10 | 6679 days | 2% |
| Wendy Williams | 9/10 | 6686 days | 2% |
| Claire | 8/10 | 6910 days | 2% |
| Will | 9/10 | 6910 days | 2% |
| JanKovar | 10/10 | 6912 days | 2% |
| Justin | 10/10 | 6915 days | 2% |
| Beth | 9/10 | 6921 days | 2% |
| Hanneke | 9/10 | 6922 days | 2% |
| Cat | 8/10 | 6924 days | 2% |
| MartinTrenker | 9/10 | 6930 days | 2% |
| Janneke | 10/10 | 6931 days | 2% |
| Renee | 9/10 | 6934 days | 2% |
| Elke | 8/10 | 6949 days | 2% |
| Malon | 10/10 | 6950 days | 2% |
| Ralph | 10/10 | 6959 days | 2% |
| Lucy | 10/10 | 6959 days | 2% |
| Gordon | 8/10 | 6971 days | 2% |
| Beate | 9/10 | 6972 days | 2% |
| MartinJago | 8/10 | 6983 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
-3.96% 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 | -3.91% |
| 198 | -3.93% |
| 199 | -3.95% |
| 200 | -3.96% |
| 201 | -3.98% |
| 202 | -4.00% |
| 203 | -4.02% |
| … | … |
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.