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
92.81%
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 | 744 days | 100% |
| Lisa | 10/10 | 1443 days | 20% |
| Michael Holm | 9/10 | 2960 days | 4% |
| Stefan Zink | 10/10 | 3212 days | 3% |
| Fentrup | 9/10 | 3218 days | 3% |
| Katharina Koch | 10/10 | 3222 days | 3% |
| Aurelie and Ben Marie | 9/10 | 3224 days | 3% |
| Sebastian Braun | 9/10 | 3312 days | 3% |
| Joanne Woo | 10/10 | 3330 days | 3% |
| Chris | 6/10 | 3361 days | 2% |
| Olivier Reculeau | 10/10 | 3546 days | 2% |
| Susanne Breudel | 10/10 | 3551 days | 2% |
| Josh Legge | 10/10 | 3559 days | 2% |
| Daniel Weber | 9/10 | 3561 days | 2% |
| Virginia Fradin | 10/10 | 3565 days | 2% |
| Olivier Anciaux | 9/10 | 3568 days | 2% |
| Wendy van Boom | 10/10 | 3568 days | 2% |
| Bas Hoogteijling | 10/10 | 3571 days | 2% |
| Mira Huckfield | 10/10 | 3581 days | 2% |
| Maike Santelmann | 10/10 | 3593 days | 2% |
| Levin Stuers | 10/10 | 3598 days | 2% |
| magdalena gomez haedo | 9/10 | 3601 days | 2% |
| Lucca Weisbender | 10/10 | 3604 days | 2% |
| Anna Scholten | 10/10 | 3604 days | 2% |
| Nils Kissel | 10/10 | 3614 days | 2% |
| Madita and Lisann | 10/10 | 3650 days | 2% |
| sanneke tangel | 10/10 | 3656 days | 2% |
| Georgia Coleman | 10/10 | 3656 days | 2% |
| Virgil Spruit | 8/10 | 3660 days | 2% |
| Xue Rong Kok | 7/10 | 3666 days | 2% |
| Anthony Jacobs | 10/10 | 3788 days | 2% |
| Sofie Jebsen | 10/10 | 3930 days | 1% |
| Tobias | 10/10 | 3930 days | 1% |
| Annika Funk | 10/10 | 3966 days | 1% |
| Dawn Mulligan | 10/10 | 3982 days | 1% |
| Christophe Scieszka | 10/10 | 4000 days | 1% |
| Hubert | 8/10 | 4039 days | 1% |
| Ondrej Stepanek | 8/10 | 4275 days | 0% |
| Boneschova Jarka | 10/10 | 4275 days | 0% |
| Heike Heller | 10/10 | 4284 days | 0% |
| Andreas Mouteiro | 9/10 | 4284 days | 0% |
| Josefin Lind | 10/10 | 4285 days | 0% |
| Herman Holmgist | 10/10 | 4285 days | 0% |
| Felicitas | 9/10 | 4307 days | 0% |
| Antoine | 8/10 | 4315 days | 0% |
| Mara K | 10/10 | 4334 days | 0% |
| Emilie Chanbon | 10/10 | 4337 days | 0% |
| Alexis Redor | 10/10 | 4337 days | 0% |
| Julia Amberger | 8/10 | 4356 days | 0% |
| Annalina Drebald | 8/10 | 4356 days | 0% |
| balesdent | 9/10 | 4362 days | 0% |
| Alineet Gautier | 10/10 | 4365 days | 0% |
| Annika Schmidt | 10/10 | 4645 days | 1% |
| Patrick Stoeit | 10/10 | 4645 days | 1% |
| Audrey Ripoche | 9/10 | 4647 days | 1% |
| Rey Germain | 9/10 | 4647 days | 1% |
| Christofer Tonn | 10/10 | 4657 days | 1% |
| Ann Furlong | 10/10 | 4665 days | 1% |
| Trudy Ryan | 8/10 | 4665 days | 1% |
| Jill Fischer | 10/10 | 4671 days | 1% |
| Kim | 10/10 | 4671 days | 1% |
| Francois Marchar | 9/10 | 4681 days | 1% |
| Jan Zimmerman | 10/10 | 4686 days | 1% |
| Elvin Teo | 10/10 | 4699 days | 1% |
| Rob | 9/10 | 4747 days | 1% |
| Andreas Garbin | 10/10 | 4749 days | 1% |
| Joanna | 9/10 | 4767 days | 1% |
| Mellow | 10/10 | 4791 days | 1% |
| whalelover88 | 10/10 | 4944 days | 1% |
| Jos Schieveen | 8/10 | 5015 days | 1% |
| Goran Backlund | 9/10 | 5021 days | 1% |
| Nathan Sait | 10/10 | 5028 days | 1% |
| Toby Clark | 10/10 | 5028 days | 1% |
| Maxine Gilman | 10/10 | 5031 days | 1% |
| Harald | 9/10 | 5045 days | 1% |
| Dominik Langenegger | 9/10 | 5047 days | 1% |
| Rebecca Richardson | 9/10 | 5047 days | 1% |
| Andrew Powell | 9/10 | 5047 days | 1% |
| Peter Field | 10/10 | 5047 days | 1% |
| Eric Lombaard | 8/10 | 5048 days | 1% |
| Nicholas Prakenhammar | 10/10 | 5049 days | 1% |
| Peter Wall | 7/10 | 5049 days | 1% |
| Verne Heath | 8/10 | 5050 days | 1% |
| John O'Donnell | 10/10 | 5051 days | 1% |
| Paul Fairbrass | 10/10 | 5058 days | 1% |
| Frank Krivauek | 10/10 | 5059 days | 1% |
| Rocco Christian | 7/10 | 5059 days | 1% |
| Kurt & Noemi Buhler | 7/10 | 5060 days | 1% |
| Therese | 7/10 | 5063 days | 1% |
| Katie K | 9/10 | 5074 days | 1% |
| CMJ | 10/10 | 5096 days | 1% |
| Jacqueline | 10/10 | 5127 days | 1% |
| Marc & Pauline | 9/10 | 5133 days | 1% |
| Kevin & Chris | 9/10 | 5134 days | 1% |
| Robin & Sandra Dijke | 9/10 | 5136 days | 1% |
| Laura McCusker | 8/10 | 5143 days | 1% |
| Dexter | 10/10 | 5341 days | 1% |
| Jasmin Loeffler | 10/10 | 5347 days | 1% |
| Natascha Rachel | 10/10 | 5347 days | 1% |
| Res Kormann | 10/10 | 5360 days | 1% |
| Sarah James | 10/10 | 5370 days | 1% |
| Nick Taylor | 10/10 | 5370 days | 1% |
| Nicola Young | 10/10 | 5370 days | 1% |
| Stefan Elsenbruch | 9/10 | 5375 days | 1% |
| Stefanie | 7/10 | 5385 days | 1% |
| Koen Vanlede | 10/10 | 5388 days | 1% |
| Van Vliet | 8/10 | 5389 days | 1% |
| Vanessa Vogel | 10/10 | 5392 days | 1% |
| Marcel Camsch | 9/10 | 5394 days | 1% |
| Keely & Mark Haynes | 10/10 | 5395 days | 1% |
| Svea Sauter | 10/10 | 5395 days | 1% |
| henriket | 10/10 | 5396 days | 1% |
| Amanda Wells | 10/10 | 5396 days | 1% |
| K & J Overton | 9/10 | 5396 days | 1% |
| Jerry & Floon | 9/10 | 5400 days | 1% |
| Bartl | 10/10 | 5400 days | 1% |
| travellingfamilyof6 | 10/10 | 5402 days | 1% |
| WeddingMaven | 10/10 | 5402 days | 1% |
| Lieve Verdonck | 8/10 | 5403 days | 1% |
| Victoria Purver | 8/10 | 5405 days | 1% |
| Thelia Beament | 9/10 | 5405 days | 1% |
| Edwards | 9/10 | 5409 days | 1% |
| Mark Irwin | 9/10 | 5413 days | 1% |
| Agnes McMillan | 10/10 | 5414 days | 1% |
| Leslie | 9/10 | 5414 days | 1% |
| Selina Mueller | 10/10 | 5416 days | 1% |
| Jill Dean | 10/10 | 5417 days | 1% |
| Chloe Finster | 10/10 | 5417 days | 1% |
| Vanderhorst | 9/10 | 5418 days | 1% |
| Judith K. | 10/10 | 5420 days | 1% |
| Amanda Wallace | 9/10 | 5420 days | 1% |
| Mark Aarts | 10/10 | 5421 days | 1% |
| Forestal Youri | 9/10 | 5422 days | 1% |
| Dave and Lin Mungham | 10/10 | 5423 days | 1% |
| Jane Hancock | 10/10 | 5425 days | 1% |
| Stephi | 10/10 | 5430 days | 1% |
| Amanda | 10/10 | 5430 days | 1% |
| Mick Doherty | 9/10 | 5461 days | 1% |
| hendrik king | 7/10 | 5461 days | 1% |
| Shoe | 10/10 | 5492 days | 1% |
| marcvergroesen | 9/10 | 5706 days | 1% |
| Jenny Leyland | 9/10 | 5706 days | 1% |
| MarcyMark | 10/10 | 5736 days | 1% |
| katrina Marshall | 10/10 | 5753 days | 1% |
| Von | 9/10 | 5767 days | 1% |
| Judith | 8/10 | 5773 days | 1% |
| Doris Resch | 10/10 | 5773 days | 1% |
| Sheila Morgan | 10/10 | 5776 days | 1% |
| Maria Newton | 9/10 | 5777 days | 1% |
| Faller | 10/10 | 5790 days | 1% |
| Wim Van Gastel | 8/10 | 5793 days | 1% |
| Laura Walters | 9/10 | 5794 days | 1% |
| Chance McGuire | 10/10 | 5795 days | 1% |
| cees juffermans | 9/10 | 5808 days | 1% |
| Markus | 10/10 | 5811 days | 1% |
| Grainne Ahern | 10/10 | 5826 days | 1% |
| sutuckey | 10/10 | 5826 days | 1% |
| Honeymooners | 10/10 | 5826 days | 1% |
| sophiep | 9/10 | 5841 days | 1% |
| chuckchallenger | 10/10 | 5857 days | 1% |
| mdarras | 9/10 | 5861 days | 1% |
| joramv | 9/10 | 5861 days | 1% |
| Michelle Kraemer | 10/10 | 5864 days | 1% |
| Kimberly Skyes | 10/10 | 5864 days | 1% |
| Ruth Colmer | 9/10 | 5867 days | 1% |
| maleta | 8/10 | 5878 days | 1% |
| Simon_and_Jane_OZ | 9/10 | 6071 days | 1% |
| JoF | 10/10 | 6093 days | 1% |
| Christian Kamm | 10/10 | 6098 days | 1% |
| Michael Maddams | 7/10 | 6099 days | 1% |
| Joanna Harrnon | 10/10 | 6100 days | 1% |
| Sarah | 8/10 | 6101 days | 1% |
| David | 10/10 | 6101 days | 1% |
| jjakkeren | 9/10 | 6101 days | 1% |
| Alanna | 10/10 | 6103 days | 1% |
| ElissaH | 10/10 | 6104 days | 1% |
| Andrew Smith | 9/10 | 6107 days | 1% |
| Jean | 10/10 | 6118 days | 1% |
| CarinaB1 | 10/10 | 6122 days | 1% |
| Lindsey | 9/10 | 6133 days | 1% |
| Lisa | 10/10 | 6138 days | 1% |
| Laura | 8/10 | 6141 days | 1% |
| kiwibrit86 | 9/10 | 6143 days | 1% |
| Visken | 10/10 | 6145 days | 1% |
| Christina | 10/10 | 6150 days | 1% |
| RachaelO | 10/10 | 6151 days | 1% |
| Marianne | 10/10 | 6152 days | 1% |
| Peppa | 10/10 | 6152 days | 1% |
| Jackie | 9/10 | 6166 days | 1% |
| Patrick | 9/10 | 6166 days | 1% |
| Carla | 8/10 | 6168 days | 1% |
| Keith | 10/10 | 6173 days | 1% |
| Saskia | 9/10 | 6174 days | 1% |
| Patrick | 10/10 | 6178 days | 1% |
| Charlie | 9/10 | 6182 days | 1% |
| Ten | 10/10 | 6182 days | 1% |
| Kevin Dangerfield | 10/10 | 6191 days | 1% |
| Graham | 9/10 | 6206 days | 1% |
| David | 10/10 | 6215 days | 1% |
| Eveline | 10/10 | 6215 days | 1% |
| Mette | 10/10 | 6222 days | 1% |
| Rowan | 9/10 | 6247 days | 1% |
| Hanna | 10/10 | 6247 days | 1% |
| Sally Walker | 10/10 | 6252 days | 1% |
| abby | 10/10 | 6258 days | 1% |
| Paul | 10/10 | 6269 days | 1% |
| Peter | 10/10 | 6277 days | 1% |
| Anna | 10/10 | 6299 days | 1% |
| Liz | 9/10 | 6308 days | 1% |
| Laura | 8/10 | 6308 days | 1% |
| Amy Shields | 7/10 | 6312 days | 1% |
| Erin | 9/10 | 6320 days | 1% |
| George Burgas | 7/10 | 6326 days | 1% |
| Sharon Curly | 7/10 | 6334 days | 1% |
| Peddy | 8/10 | 6336 days | 1% |
| Christine | 9/10 | 6350 days | 1% |
| Charlie Bond | 8/10 | 6383 days | 1% |
| SandyS | 10/10 | 6436 days | 1% |
| BexStar | 10/10 | 6450 days | 1% |
| Galen | 9/10 | 6467 days | 1% |
| Monica Black | 10/10 | 6467 days | 1% |
| Denise | 10/10 | 6484 days | 1% |
| Ria | 9/10 | 6488 days | 1% |
| Christian | 7/10 | 6488 days | 1% |
| Wiebke | 9/10 | 6492 days | 1% |
| Phil Connelly | 9/10 | 6493 days | 1% |
| Amanda | 9/10 | 6499 days | 1% |
| Erwin de Kleijn | 9/10 | 6507 days | 1% |
| Nick | 10/10 | 6515 days | 1% |
| John | 9/10 | 6515 days | 1% |
| Sandra Gustafson | 10/10 | 6543 days | 1% |
| Jo | 10/10 | 6543 days | 1% |
| Helena | 10/10 | 6544 days | 1% |
| Seldam | 8/10 | 6549 days | 1% |
| Andrew Purdam | 7/10 | 6557 days | 1% |
| Gerber Liselotte | 10/10 | 6575 days | 1% |
| Gabriela Herger | 8/10 | 6583 days | 1% |
| Jane Coleman | 8/10 | 6586 days | 1% |
| Wendy Williams | 9/10 | 6593 days | 1% |
| Claire | 8/10 | 6817 days | 1% |
| Will | 9/10 | 6817 days | 1% |
| JanKovar | 10/10 | 6819 days | 1% |
| Justin | 10/10 | 6822 days | 1% |
| Beth | 9/10 | 6828 days | 1% |
| Hanneke | 9/10 | 6829 days | 1% |
| Cat | 8/10 | 6831 days | 1% |
| MartinTrenker | 9/10 | 6837 days | 1% |
| Janneke | 10/10 | 6838 days | 1% |
| Renee | 9/10 | 6841 days | 1% |
| Elke | 8/10 | 6856 days | 1% |
| Malon | 10/10 | 6857 days | 1% |
| Ralph | 10/10 | 6866 days | 1% |
| Lucy | 10/10 | 6866 days | 1% |
| Gordon | 8/10 | 6878 days | 1% |
| Beate | 9/10 | 6879 days | 1% |
| MartinJago | 8/10 | 6890 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
-4.06% Adjustment
There may be an adjustment if this experience hasn't received any reviews within the last 42 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 | -4.00% |
| 198 | -4.02% |
| 199 | -4.04% |
| 200 | -4.06% |
| 201 | -4.08% |
| 202 | -4.10% |
| 203 | -4.12% |
| … | … |
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.