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
92.74%
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 | 868 days | 100% |
| Lisa | 10/10 | 1567 days | 15% |
| Michael Holm | 9/10 | 3084 days | 4% |
| Stefan Zink | 10/10 | 3336 days | 3% |
| Fentrup | 9/10 | 3342 days | 3% |
| Katharina Koch | 10/10 | 3346 days | 3% |
| Aurelie and Ben Marie | 9/10 | 3348 days | 3% |
| Sebastian Braun | 9/10 | 3436 days | 3% |
| Joanne Woo | 10/10 | 3453 days | 2% |
| Chris | 6/10 | 3484 days | 2% |
| Olivier Reculeau | 10/10 | 3670 days | 2% |
| Susanne Breudel | 10/10 | 3675 days | 2% |
| Josh Legge | 10/10 | 3683 days | 2% |
| Daniel Weber | 9/10 | 3685 days | 2% |
| Virginia Fradin | 10/10 | 3689 days | 2% |
| Olivier Anciaux | 9/10 | 3692 days | 2% |
| Wendy van Boom | 10/10 | 3692 days | 2% |
| Bas Hoogteijling | 10/10 | 3695 days | 2% |
| Mira Huckfield | 10/10 | 3705 days | 2% |
| Maike Santelmann | 10/10 | 3717 days | 2% |
| Levin Stuers | 10/10 | 3722 days | 2% |
| magdalena gomez haedo | 9/10 | 3725 days | 2% |
| Lucca Weisbender | 10/10 | 3727 days | 2% |
| Anna Scholten | 10/10 | 3728 days | 2% |
| Nils Kissel | 10/10 | 3738 days | 1% |
| Madita and Lisann | 10/10 | 3774 days | 1% |
| sanneke tangel | 10/10 | 3780 days | 1% |
| Georgia Coleman | 10/10 | 3780 days | 1% |
| Virgil Spruit | 8/10 | 3784 days | 1% |
| Xue Rong Kok | 7/10 | 3789 days | 1% |
| Anthony Jacobs | 10/10 | 3911 days | 1% |
| Sofie Jebsen | 10/10 | 4054 days | 0% |
| Tobias | 10/10 | 4054 days | 0% |
| Annika Funk | 10/10 | 4090 days | 0% |
| Dawn Mulligan | 10/10 | 4106 days | 0% |
| Christophe Scieszka | 10/10 | 4123 days | 0% |
| Hubert | 8/10 | 4163 days | 0% |
| Ondrej Stepanek | 8/10 | 4399 days | 1% |
| Boneschova Jarka | 10/10 | 4399 days | 1% |
| Heike Heller | 10/10 | 4408 days | 1% |
| Andreas Mouteiro | 9/10 | 4408 days | 1% |
| Josefin Lind | 10/10 | 4409 days | 1% |
| Herman Holmgist | 10/10 | 4409 days | 1% |
| Felicitas | 9/10 | 4431 days | 1% |
| Antoine | 8/10 | 4439 days | 1% |
| Mara K | 10/10 | 4458 days | 1% |
| Emilie Chanbon | 10/10 | 4461 days | 1% |
| Alexis Redor | 10/10 | 4461 days | 1% |
| Julia Amberger | 8/10 | 4480 days | 1% |
| Annalina Drebald | 8/10 | 4480 days | 1% |
| balesdent | 9/10 | 4486 days | 1% |
| Alineet Gautier | 10/10 | 4489 days | 1% |
| Annika Schmidt | 10/10 | 4769 days | 1% |
| Patrick Stoeit | 10/10 | 4769 days | 1% |
| Audrey Ripoche | 9/10 | 4771 days | 1% |
| Rey Germain | 9/10 | 4771 days | 1% |
| Christofer Tonn | 10/10 | 4781 days | 1% |
| Ann Furlong | 10/10 | 4789 days | 1% |
| Trudy Ryan | 8/10 | 4789 days | 1% |
| Jill Fischer | 10/10 | 4795 days | 1% |
| Kim | 10/10 | 4795 days | 1% |
| Francois Marchar | 9/10 | 4805 days | 1% |
| Jan Zimmerman | 10/10 | 4810 days | 1% |
| Elvin Teo | 10/10 | 4823 days | 1% |
| Rob | 9/10 | 4871 days | 1% |
| Andreas Garbin | 10/10 | 4873 days | 1% |
| Joanna | 9/10 | 4891 days | 1% |
| Mellow | 10/10 | 4915 days | 1% |
| whalelover88 | 10/10 | 5068 days | 1% |
| Jos Schieveen | 8/10 | 5139 days | 1% |
| Goran Backlund | 9/10 | 5145 days | 1% |
| Nathan Sait | 10/10 | 5152 days | 1% |
| Toby Clark | 10/10 | 5152 days | 1% |
| Maxine Gilman | 10/10 | 5155 days | 1% |
| Harald | 9/10 | 5169 days | 1% |
| Dominik Langenegger | 9/10 | 5171 days | 1% |
| Rebecca Richardson | 9/10 | 5171 days | 1% |
| Andrew Powell | 9/10 | 5171 days | 1% |
| Peter Field | 10/10 | 5171 days | 1% |
| Eric Lombaard | 8/10 | 5172 days | 1% |
| Nicholas Prakenhammar | 10/10 | 5173 days | 1% |
| Peter Wall | 7/10 | 5173 days | 1% |
| Verne Heath | 8/10 | 5174 days | 1% |
| John O'Donnell | 10/10 | 5175 days | 1% |
| Paul Fairbrass | 10/10 | 5182 days | 1% |
| Frank Krivauek | 10/10 | 5183 days | 1% |
| Rocco Christian | 7/10 | 5183 days | 1% |
| Kurt & Noemi Buhler | 7/10 | 5184 days | 1% |
| Therese | 7/10 | 5187 days | 1% |
| Katie K | 9/10 | 5198 days | 1% |
| CMJ | 10/10 | 5220 days | 1% |
| Jacqueline | 10/10 | 5251 days | 1% |
| Marc & Pauline | 9/10 | 5257 days | 1% |
| Kevin & Chris | 9/10 | 5258 days | 1% |
| Robin & Sandra Dijke | 9/10 | 5260 days | 1% |
| Laura McCusker | 8/10 | 5267 days | 1% |
| Dexter | 10/10 | 5465 days | 1% |
| Jasmin Loeffler | 10/10 | 5471 days | 1% |
| Natascha Rachel | 10/10 | 5471 days | 1% |
| Res Kormann | 10/10 | 5484 days | 1% |
| Sarah James | 10/10 | 5494 days | 1% |
| Nick Taylor | 10/10 | 5494 days | 1% |
| Nicola Young | 10/10 | 5494 days | 1% |
| Stefan Elsenbruch | 9/10 | 5499 days | 1% |
| Stefanie | 7/10 | 5509 days | 1% |
| Koen Vanlede | 10/10 | 5512 days | 1% |
| Van Vliet | 8/10 | 5513 days | 1% |
| Vanessa Vogel | 10/10 | 5516 days | 1% |
| Marcel Camsch | 9/10 | 5518 days | 1% |
| Keely & Mark Haynes | 10/10 | 5519 days | 1% |
| Svea Sauter | 10/10 | 5519 days | 1% |
| henriket | 10/10 | 5520 days | 1% |
| Amanda Wells | 10/10 | 5520 days | 1% |
| K & J Overton | 9/10 | 5520 days | 1% |
| Jerry & Floon | 9/10 | 5524 days | 1% |
| Bartl | 10/10 | 5524 days | 1% |
| travellingfamilyof6 | 10/10 | 5526 days | 1% |
| WeddingMaven | 10/10 | 5526 days | 1% |
| Lieve Verdonck | 8/10 | 5527 days | 1% |
| Victoria Purver | 8/10 | 5529 days | 1% |
| Thelia Beament | 9/10 | 5529 days | 1% |
| Edwards | 9/10 | 5533 days | 1% |
| Mark Irwin | 9/10 | 5537 days | 1% |
| Agnes McMillan | 10/10 | 5538 days | 1% |
| Leslie | 9/10 | 5538 days | 1% |
| Selina Mueller | 10/10 | 5540 days | 1% |
| Jill Dean | 10/10 | 5541 days | 1% |
| Chloe Finster | 10/10 | 5541 days | 1% |
| Vanderhorst | 9/10 | 5542 days | 1% |
| Judith K. | 10/10 | 5544 days | 1% |
| Amanda Wallace | 9/10 | 5544 days | 1% |
| Mark Aarts | 10/10 | 5545 days | 1% |
| Forestal Youri | 9/10 | 5546 days | 1% |
| Dave and Lin Mungham | 10/10 | 5547 days | 1% |
| Jane Hancock | 10/10 | 5549 days | 1% |
| Stephi | 10/10 | 5554 days | 1% |
| Amanda | 10/10 | 5554 days | 1% |
| Mick Doherty | 9/10 | 5585 days | 1% |
| hendrik king | 7/10 | 5585 days | 1% |
| Shoe | 10/10 | 5616 days | 1% |
| marcvergroesen | 9/10 | 5830 days | 1% |
| Jenny Leyland | 9/10 | 5830 days | 1% |
| MarcyMark | 10/10 | 5860 days | 1% |
| katrina Marshall | 10/10 | 5877 days | 1% |
| Von | 9/10 | 5891 days | 1% |
| Judith | 8/10 | 5897 days | 1% |
| Doris Resch | 10/10 | 5897 days | 1% |
| Sheila Morgan | 10/10 | 5900 days | 1% |
| Maria Newton | 9/10 | 5901 days | 1% |
| Faller | 10/10 | 5914 days | 1% |
| Wim Van Gastel | 8/10 | 5917 days | 1% |
| Laura Walters | 9/10 | 5918 days | 1% |
| Chance McGuire | 10/10 | 5919 days | 1% |
| cees juffermans | 9/10 | 5932 days | 1% |
| Markus | 10/10 | 5935 days | 1% |
| Grainne Ahern | 10/10 | 5950 days | 1% |
| sutuckey | 10/10 | 5950 days | 1% |
| Honeymooners | 10/10 | 5950 days | 1% |
| sophiep | 9/10 | 5965 days | 1% |
| chuckchallenger | 10/10 | 5981 days | 1% |
| mdarras | 9/10 | 5985 days | 1% |
| joramv | 9/10 | 5985 days | 1% |
| Michelle Kraemer | 10/10 | 5988 days | 1% |
| Kimberly Skyes | 10/10 | 5988 days | 1% |
| Ruth Colmer | 9/10 | 5991 days | 1% |
| maleta | 8/10 | 6002 days | 1% |
| Simon_and_Jane_OZ | 9/10 | 6195 days | 1% |
| JoF | 10/10 | 6217 days | 1% |
| Christian Kamm | 10/10 | 6222 days | 1% |
| Michael Maddams | 7/10 | 6223 days | 1% |
| Joanna Harrnon | 10/10 | 6224 days | 1% |
| Sarah | 8/10 | 6224 days | 1% |
| David | 10/10 | 6225 days | 1% |
| jjakkeren | 9/10 | 6225 days | 1% |
| Alanna | 10/10 | 6226 days | 1% |
| ElissaH | 10/10 | 6227 days | 1% |
| Andrew Smith | 9/10 | 6231 days | 1% |
| Jean | 10/10 | 6241 days | 1% |
| CarinaB1 | 10/10 | 6246 days | 1% |
| Lindsey | 9/10 | 6256 days | 1% |
| Lisa | 10/10 | 6261 days | 1% |
| Laura | 8/10 | 6264 days | 1% |
| kiwibrit86 | 9/10 | 6266 days | 1% |
| Visken | 10/10 | 6268 days | 1% |
| Christina | 10/10 | 6273 days | 1% |
| RachaelO | 10/10 | 6275 days | 1% |
| Marianne | 10/10 | 6275 days | 1% |
| Peppa | 10/10 | 6275 days | 1% |
| Jackie | 9/10 | 6289 days | 1% |
| Patrick | 9/10 | 6289 days | 1% |
| Carla | 8/10 | 6291 days | 1% |
| Keith | 10/10 | 6297 days | 1% |
| Saskia | 9/10 | 6297 days | 1% |
| Patrick | 10/10 | 6301 days | 1% |
| Charlie | 9/10 | 6305 days | 1% |
| Ten | 10/10 | 6305 days | 1% |
| Kevin Dangerfield | 10/10 | 6314 days | 1% |
| Graham | 9/10 | 6329 days | 1% |
| David | 10/10 | 6338 days | 1% |
| Eveline | 10/10 | 6338 days | 1% |
| Mette | 10/10 | 6345 days | 1% |
| Rowan | 9/10 | 6370 days | 1% |
| Hanna | 10/10 | 6370 days | 1% |
| Sally Walker | 10/10 | 6376 days | 1% |
| abby | 10/10 | 6382 days | 1% |
| Paul | 10/10 | 6392 days | 1% |
| Peter | 10/10 | 6400 days | 1% |
| Anna | 10/10 | 6422 days | 1% |
| Liz | 9/10 | 6431 days | 1% |
| Laura | 8/10 | 6431 days | 1% |
| Amy Shields | 7/10 | 6435 days | 1% |
| Erin | 9/10 | 6443 days | 1% |
| George Burgas | 7/10 | 6449 days | 1% |
| Sharon Curly | 7/10 | 6457 days | 1% |
| Peddy | 8/10 | 6460 days | 1% |
| Christine | 9/10 | 6473 days | 1% |
| Charlie Bond | 8/10 | 6506 days | 1% |
| SandyS | 10/10 | 6560 days | 1% |
| BexStar | 10/10 | 6573 days | 1% |
| Galen | 9/10 | 6591 days | 1% |
| Monica Black | 10/10 | 6591 days | 1% |
| Denise | 10/10 | 6608 days | 1% |
| Ria | 9/10 | 6612 days | 1% |
| Christian | 7/10 | 6612 days | 1% |
| Wiebke | 9/10 | 6616 days | 1% |
| Phil Connelly | 9/10 | 6617 days | 1% |
| Amanda | 9/10 | 6623 days | 1% |
| Erwin de Kleijn | 9/10 | 6630 days | 1% |
| Nick | 10/10 | 6639 days | 1% |
| John | 9/10 | 6639 days | 1% |
| Sandra Gustafson | 10/10 | 6667 days | 1% |
| Jo | 10/10 | 6667 days | 1% |
| Helena | 10/10 | 6668 days | 1% |
| Seldam | 8/10 | 6673 days | 1% |
| Andrew Purdam | 7/10 | 6681 days | 1% |
| Gerber Liselotte | 10/10 | 6699 days | 1% |
| Gabriela Herger | 8/10 | 6707 days | 1% |
| Jane Coleman | 8/10 | 6710 days | 1% |
| Wendy Williams | 9/10 | 6717 days | 1% |
| Claire | 8/10 | 6941 days | 1% |
| Will | 9/10 | 6941 days | 1% |
| JanKovar | 10/10 | 6943 days | 1% |
| Justin | 10/10 | 6946 days | 1% |
| Beth | 9/10 | 6952 days | 1% |
| Hanneke | 9/10 | 6953 days | 1% |
| Cat | 8/10 | 6955 days | 1% |
| MartinTrenker | 9/10 | 6961 days | 1% |
| Janneke | 10/10 | 6962 days | 1% |
| Renee | 9/10 | 6965 days | 1% |
| Elke | 8/10 | 6980 days | 1% |
| Malon | 10/10 | 6981 days | 1% |
| Ralph | 10/10 | 6990 days | 1% |
| Lucy | 10/10 | 6990 days | 1% |
| Gordon | 8/10 | 7002 days | 1% |
| Beate | 9/10 | 7003 days | 1% |
| MartinJago | 8/10 | 7014 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
-3.42% Adjustment
There may be an adjustment if this experience hasn't received any reviews within the last 67 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 | -3.37% |
| 198 | -3.39% |
| 199 | -3.40% |
| 200 | -3.42% |
| 201 | -3.44% |
| 202 | -3.46% |
| 203 | -3.47% |
| … | … |
Balancing Adjustment
1.09% 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.