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
92.73%
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 | 919 days | 100% |
| Lisa | 10/10 | 1618 days | 14% |
| Michael Holm | 9/10 | 3135 days | 4% |
| Stefan Zink | 10/10 | 3387 days | 3% |
| Fentrup | 9/10 | 3393 days | 3% |
| Katharina Koch | 10/10 | 3397 days | 3% |
| Aurelie and Ben Marie | 9/10 | 3399 days | 3% |
| Sebastian Braun | 9/10 | 3487 days | 3% |
| Joanne Woo | 10/10 | 3505 days | 3% |
| Chris | 6/10 | 3536 days | 2% |
| Olivier Reculeau | 10/10 | 3721 days | 2% |
| Susanne Breudel | 10/10 | 3726 days | 2% |
| Josh Legge | 10/10 | 3734 days | 2% |
| Daniel Weber | 9/10 | 3736 days | 2% |
| Virginia Fradin | 10/10 | 3740 days | 2% |
| Olivier Anciaux | 9/10 | 3743 days | 2% |
| Wendy van Boom | 10/10 | 3743 days | 2% |
| Bas Hoogteijling | 10/10 | 3746 days | 2% |
| Mira Huckfield | 10/10 | 3756 days | 2% |
| Maike Santelmann | 10/10 | 3768 days | 2% |
| Levin Stuers | 10/10 | 3773 days | 2% |
| magdalena gomez haedo | 9/10 | 3776 days | 2% |
| Lucca Weisbender | 10/10 | 3779 days | 2% |
| Anna Scholten | 10/10 | 3779 days | 2% |
| Nils Kissel | 10/10 | 3789 days | 2% |
| Madita and Lisann | 10/10 | 3825 days | 2% |
| sanneke tangel | 10/10 | 3831 days | 1% |
| Georgia Coleman | 10/10 | 3831 days | 1% |
| Virgil Spruit | 8/10 | 3835 days | 1% |
| Xue Rong Kok | 7/10 | 3841 days | 1% |
| Anthony Jacobs | 10/10 | 3963 days | 1% |
| Sofie Jebsen | 10/10 | 4105 days | 0% |
| Tobias | 10/10 | 4105 days | 0% |
| Annika Funk | 10/10 | 4141 days | 0% |
| Dawn Mulligan | 10/10 | 4157 days | 0% |
| Christophe Scieszka | 10/10 | 4175 days | 0% |
| Hubert | 8/10 | 4214 days | 0% |
| Ondrej Stepanek | 8/10 | 4450 days | 1% |
| Boneschova Jarka | 10/10 | 4450 days | 1% |
| Heike Heller | 10/10 | 4459 days | 1% |
| Andreas Mouteiro | 9/10 | 4459 days | 1% |
| Josefin Lind | 10/10 | 4460 days | 1% |
| Herman Holmgist | 10/10 | 4460 days | 1% |
| Felicitas | 9/10 | 4482 days | 1% |
| Antoine | 8/10 | 4490 days | 1% |
| Mara K | 10/10 | 4509 days | 1% |
| Emilie Chanbon | 10/10 | 4512 days | 1% |
| Alexis Redor | 10/10 | 4512 days | 1% |
| Julia Amberger | 8/10 | 4531 days | 1% |
| Annalina Drebald | 8/10 | 4531 days | 1% |
| balesdent | 9/10 | 4537 days | 1% |
| Alineet Gautier | 10/10 | 4540 days | 1% |
| Annika Schmidt | 10/10 | 4820 days | 1% |
| Patrick Stoeit | 10/10 | 4820 days | 1% |
| Audrey Ripoche | 9/10 | 4822 days | 1% |
| Rey Germain | 9/10 | 4822 days | 1% |
| Christofer Tonn | 10/10 | 4832 days | 1% |
| Ann Furlong | 10/10 | 4840 days | 1% |
| Trudy Ryan | 8/10 | 4840 days | 1% |
| Jill Fischer | 10/10 | 4846 days | 1% |
| Kim | 10/10 | 4846 days | 1% |
| Francois Marchar | 9/10 | 4856 days | 1% |
| Jan Zimmerman | 10/10 | 4861 days | 1% |
| Elvin Teo | 10/10 | 4874 days | 1% |
| Rob | 9/10 | 4922 days | 1% |
| Andreas Garbin | 10/10 | 4924 days | 1% |
| Joanna | 9/10 | 4942 days | 1% |
| Mellow | 10/10 | 4966 days | 1% |
| whalelover88 | 10/10 | 5119 days | 1% |
| Jos Schieveen | 8/10 | 5190 days | 1% |
| Goran Backlund | 9/10 | 5196 days | 1% |
| Nathan Sait | 10/10 | 5203 days | 1% |
| Toby Clark | 10/10 | 5203 days | 1% |
| Maxine Gilman | 10/10 | 5206 days | 1% |
| Harald | 9/10 | 5220 days | 1% |
| Dominik Langenegger | 9/10 | 5222 days | 1% |
| Rebecca Richardson | 9/10 | 5222 days | 1% |
| Andrew Powell | 9/10 | 5222 days | 1% |
| Peter Field | 10/10 | 5222 days | 1% |
| Eric Lombaard | 8/10 | 5223 days | 1% |
| Nicholas Prakenhammar | 10/10 | 5224 days | 1% |
| Peter Wall | 7/10 | 5224 days | 1% |
| Verne Heath | 8/10 | 5225 days | 1% |
| John O'Donnell | 10/10 | 5226 days | 1% |
| Paul Fairbrass | 10/10 | 5233 days | 1% |
| Frank Krivauek | 10/10 | 5234 days | 1% |
| Rocco Christian | 7/10 | 5234 days | 1% |
| Kurt & Noemi Buhler | 7/10 | 5235 days | 1% |
| Therese | 7/10 | 5238 days | 1% |
| Katie K | 9/10 | 5249 days | 1% |
| CMJ | 10/10 | 5271 days | 1% |
| Jacqueline | 10/10 | 5302 days | 1% |
| Marc & Pauline | 9/10 | 5308 days | 1% |
| Kevin & Chris | 9/10 | 5309 days | 1% |
| Robin & Sandra Dijke | 9/10 | 5311 days | 1% |
| Laura McCusker | 8/10 | 5318 days | 1% |
| Dexter | 10/10 | 5516 days | 1% |
| Jasmin Loeffler | 10/10 | 5522 days | 1% |
| Natascha Rachel | 10/10 | 5522 days | 1% |
| Res Kormann | 10/10 | 5535 days | 1% |
| Sarah James | 10/10 | 5545 days | 1% |
| Nick Taylor | 10/10 | 5545 days | 1% |
| Nicola Young | 10/10 | 5545 days | 1% |
| Stefan Elsenbruch | 9/10 | 5550 days | 1% |
| Stefanie | 7/10 | 5560 days | 1% |
| Koen Vanlede | 10/10 | 5563 days | 1% |
| Van Vliet | 8/10 | 5564 days | 1% |
| Vanessa Vogel | 10/10 | 5567 days | 1% |
| Marcel Camsch | 9/10 | 5569 days | 1% |
| Keely & Mark Haynes | 10/10 | 5570 days | 1% |
| Svea Sauter | 10/10 | 5570 days | 1% |
| henriket | 10/10 | 5571 days | 1% |
| Amanda Wells | 10/10 | 5571 days | 1% |
| K & J Overton | 9/10 | 5571 days | 1% |
| Jerry & Floon | 9/10 | 5575 days | 1% |
| Bartl | 10/10 | 5575 days | 1% |
| travellingfamilyof6 | 10/10 | 5577 days | 1% |
| WeddingMaven | 10/10 | 5577 days | 1% |
| Lieve Verdonck | 8/10 | 5578 days | 1% |
| Victoria Purver | 8/10 | 5580 days | 1% |
| Thelia Beament | 9/10 | 5580 days | 1% |
| Edwards | 9/10 | 5584 days | 1% |
| Mark Irwin | 9/10 | 5588 days | 1% |
| Agnes McMillan | 10/10 | 5589 days | 1% |
| Leslie | 9/10 | 5589 days | 1% |
| Selina Mueller | 10/10 | 5591 days | 1% |
| Jill Dean | 10/10 | 5592 days | 1% |
| Chloe Finster | 10/10 | 5592 days | 1% |
| Vanderhorst | 9/10 | 5593 days | 1% |
| Judith K. | 10/10 | 5595 days | 1% |
| Amanda Wallace | 9/10 | 5595 days | 1% |
| Mark Aarts | 10/10 | 5596 days | 1% |
| Forestal Youri | 9/10 | 5597 days | 1% |
| Dave and Lin Mungham | 10/10 | 5598 days | 1% |
| Jane Hancock | 10/10 | 5600 days | 1% |
| Stephi | 10/10 | 5605 days | 1% |
| Amanda | 10/10 | 5605 days | 1% |
| Mick Doherty | 9/10 | 5636 days | 1% |
| hendrik king | 7/10 | 5636 days | 1% |
| Shoe | 10/10 | 5667 days | 1% |
| marcvergroesen | 9/10 | 5881 days | 1% |
| Jenny Leyland | 9/10 | 5881 days | 1% |
| MarcyMark | 10/10 | 5911 days | 1% |
| katrina Marshall | 10/10 | 5928 days | 1% |
| Von | 9/10 | 5942 days | 1% |
| Judith | 8/10 | 5948 days | 1% |
| Doris Resch | 10/10 | 5948 days | 1% |
| Sheila Morgan | 10/10 | 5951 days | 1% |
| Maria Newton | 9/10 | 5952 days | 1% |
| Faller | 10/10 | 5965 days | 1% |
| Wim Van Gastel | 8/10 | 5968 days | 1% |
| Laura Walters | 9/10 | 5969 days | 1% |
| Chance McGuire | 10/10 | 5970 days | 1% |
| cees juffermans | 9/10 | 5983 days | 1% |
| Markus | 10/10 | 5986 days | 1% |
| Grainne Ahern | 10/10 | 6001 days | 1% |
| sutuckey | 10/10 | 6001 days | 1% |
| Honeymooners | 10/10 | 6001 days | 1% |
| sophiep | 9/10 | 6016 days | 1% |
| chuckchallenger | 10/10 | 6032 days | 1% |
| mdarras | 9/10 | 6036 days | 1% |
| joramv | 9/10 | 6036 days | 1% |
| Michelle Kraemer | 10/10 | 6039 days | 1% |
| Kimberly Skyes | 10/10 | 6039 days | 1% |
| Ruth Colmer | 9/10 | 6042 days | 1% |
| maleta | 8/10 | 6053 days | 1% |
| Simon_and_Jane_OZ | 9/10 | 6246 days | 1% |
| JoF | 10/10 | 6268 days | 1% |
| Christian Kamm | 10/10 | 6273 days | 1% |
| Michael Maddams | 7/10 | 6274 days | 1% |
| Joanna Harrnon | 10/10 | 6275 days | 1% |
| Sarah | 8/10 | 6276 days | 1% |
| David | 10/10 | 6276 days | 1% |
| jjakkeren | 9/10 | 6276 days | 1% |
| Alanna | 10/10 | 6278 days | 1% |
| ElissaH | 10/10 | 6279 days | 1% |
| Andrew Smith | 9/10 | 6282 days | 1% |
| Jean | 10/10 | 6293 days | 1% |
| CarinaB1 | 10/10 | 6297 days | 1% |
| Lindsey | 9/10 | 6308 days | 1% |
| Lisa | 10/10 | 6313 days | 1% |
| Laura | 8/10 | 6316 days | 1% |
| kiwibrit86 | 9/10 | 6318 days | 1% |
| Visken | 10/10 | 6320 days | 1% |
| Christina | 10/10 | 6325 days | 1% |
| RachaelO | 10/10 | 6326 days | 1% |
| Marianne | 10/10 | 6327 days | 1% |
| Peppa | 10/10 | 6327 days | 1% |
| Jackie | 9/10 | 6341 days | 1% |
| Patrick | 9/10 | 6341 days | 1% |
| Carla | 8/10 | 6342 days | 1% |
| Keith | 10/10 | 6348 days | 1% |
| Saskia | 9/10 | 6349 days | 1% |
| Patrick | 10/10 | 6353 days | 1% |
| Charlie | 9/10 | 6357 days | 1% |
| Ten | 10/10 | 6357 days | 1% |
| Kevin Dangerfield | 10/10 | 6366 days | 1% |
| Graham | 9/10 | 6381 days | 1% |
| David | 10/10 | 6390 days | 1% |
| Eveline | 10/10 | 6390 days | 1% |
| Mette | 10/10 | 6397 days | 1% |
| Rowan | 9/10 | 6422 days | 1% |
| Hanna | 10/10 | 6422 days | 1% |
| Sally Walker | 10/10 | 6427 days | 1% |
| abby | 10/10 | 6433 days | 1% |
| Paul | 10/10 | 6444 days | 1% |
| Peter | 10/10 | 6452 days | 1% |
| Anna | 10/10 | 6474 days | 1% |
| Liz | 9/10 | 6483 days | 1% |
| Laura | 8/10 | 6483 days | 1% |
| Amy Shields | 7/10 | 6487 days | 1% |
| Erin | 9/10 | 6495 days | 1% |
| George Burgas | 7/10 | 6501 days | 1% |
| Sharon Curly | 7/10 | 6509 days | 1% |
| Peddy | 8/10 | 6511 days | 1% |
| Christine | 9/10 | 6525 days | 1% |
| Charlie Bond | 8/10 | 6558 days | 1% |
| SandyS | 10/10 | 6611 days | 1% |
| BexStar | 10/10 | 6625 days | 1% |
| Galen | 9/10 | 6642 days | 1% |
| Monica Black | 10/10 | 6642 days | 1% |
| Denise | 10/10 | 6659 days | 1% |
| Ria | 9/10 | 6663 days | 1% |
| Christian | 7/10 | 6663 days | 1% |
| Wiebke | 9/10 | 6667 days | 1% |
| Phil Connelly | 9/10 | 6668 days | 1% |
| Amanda | 9/10 | 6674 days | 1% |
| Erwin de Kleijn | 9/10 | 6681 days | 1% |
| Nick | 10/10 | 6690 days | 1% |
| John | 9/10 | 6690 days | 1% |
| Sandra Gustafson | 10/10 | 6718 days | 1% |
| Jo | 10/10 | 6718 days | 1% |
| Helena | 10/10 | 6719 days | 1% |
| Seldam | 8/10 | 6724 days | 1% |
| Andrew Purdam | 7/10 | 6732 days | 1% |
| Gerber Liselotte | 10/10 | 6750 days | 1% |
| Gabriela Herger | 8/10 | 6758 days | 1% |
| Jane Coleman | 8/10 | 6761 days | 1% |
| Wendy Williams | 9/10 | 6768 days | 1% |
| Claire | 8/10 | 6992 days | 1% |
| Will | 9/10 | 6992 days | 1% |
| JanKovar | 10/10 | 6994 days | 1% |
| Justin | 10/10 | 6997 days | 1% |
| Beth | 9/10 | 7003 days | 1% |
| Hanneke | 9/10 | 7004 days | 1% |
| Cat | 8/10 | 7006 days | 1% |
| MartinTrenker | 9/10 | 7012 days | 1% |
| Janneke | 10/10 | 7013 days | 1% |
| Renee | 9/10 | 7016 days | 1% |
| Elke | 8/10 | 7031 days | 1% |
| Malon | 10/10 | 7032 days | 1% |
| Ralph | 10/10 | 7041 days | 1% |
| Lucy | 10/10 | 7041 days | 1% |
| Gordon | 8/10 | 7053 days | 1% |
| Beate | 9/10 | 7054 days | 1% |
| MartinJago | 8/10 | 7065 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
-2.34% Adjustment
There may be an adjustment if this experience hasn't received any reviews within the last 110 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 | -2.31% |
| 198 | -2.32% |
| 199 | -2.33% |
| 200 | -2.34% |
| 201 | -2.36% |
| 202 | -2.37% |
| 203 | -2.38% |
| … | … |
Balancing Adjustment
0.95% 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
91%
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.