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
93.07%
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 | 427 days | 100% |
| Lisa | 10/10 | 1126 days | 37% |
| Michael Holm | 9/10 | 2643 days | 4% |
| Stefan Zink | 10/10 | 2895 days | 3% |
| Fentrup | 9/10 | 2901 days | 3% |
| Katharina Koch | 10/10 | 2905 days | 3% |
| Aurelie and Ben Marie | 9/10 | 2907 days | 3% |
| Sebastian Braun | 9/10 | 2995 days | 3% |
| Joanne Woo | 10/10 | 3012 days | 3% |
| Chris | 6/10 | 3043 days | 3% |
| Olivier Reculeau | 10/10 | 3229 days | 3% |
| Susanne Breudel | 10/10 | 3234 days | 3% |
| Josh Legge | 10/10 | 3242 days | 2% |
| Daniel Weber | 9/10 | 3244 days | 2% |
| Virginia Fradin | 10/10 | 3248 days | 2% |
| Olivier Anciaux | 9/10 | 3251 days | 2% |
| Wendy van Boom | 10/10 | 3251 days | 2% |
| Bas Hoogteijling | 10/10 | 3254 days | 2% |
| Mira Huckfield | 10/10 | 3264 days | 2% |
| Maike Santelmann | 10/10 | 3276 days | 2% |
| Levin Stuers | 10/10 | 3281 days | 2% |
| magdalena gomez haedo | 9/10 | 3284 days | 2% |
| Lucca Weisbender | 10/10 | 3286 days | 2% |
| Anna Scholten | 10/10 | 3287 days | 2% |
| Nils Kissel | 10/10 | 3297 days | 2% |
| Madita and Lisann | 10/10 | 3333 days | 2% |
| sanneke tangel | 10/10 | 3339 days | 2% |
| Georgia Coleman | 10/10 | 3339 days | 2% |
| Virgil Spruit | 8/10 | 3343 days | 2% |
| Xue Rong Kok | 7/10 | 3348 days | 2% |
| Anthony Jacobs | 10/10 | 3470 days | 2% |
| Sofie Jebsen | 10/10 | 3613 days | 2% |
| Tobias | 10/10 | 3613 days | 2% |
| Annika Funk | 10/10 | 3649 days | 2% |
| Dawn Mulligan | 10/10 | 3665 days | 2% |
| Christophe Scieszka | 10/10 | 3682 days | 2% |
| Hubert | 8/10 | 3722 days | 1% |
| Ondrej Stepanek | 8/10 | 3958 days | 1% |
| Boneschova Jarka | 10/10 | 3958 days | 1% |
| Heike Heller | 10/10 | 3967 days | 1% |
| Andreas Mouteiro | 9/10 | 3967 days | 1% |
| Josefin Lind | 10/10 | 3968 days | 1% |
| Herman Holmgist | 10/10 | 3968 days | 1% |
| Felicitas | 9/10 | 3990 days | 1% |
| Antoine | 8/10 | 3998 days | 1% |
| Mara K | 10/10 | 4017 days | 1% |
| Emilie Chanbon | 10/10 | 4020 days | 1% |
| Alexis Redor | 10/10 | 4020 days | 1% |
| Julia Amberger | 8/10 | 4039 days | 1% |
| Annalina Drebald | 8/10 | 4039 days | 1% |
| balesdent | 9/10 | 4045 days | 1% |
| Alineet Gautier | 10/10 | 4048 days | 1% |
| Annika Schmidt | 10/10 | 4328 days | 0% |
| Patrick Stoeit | 10/10 | 4328 days | 0% |
| Audrey Ripoche | 9/10 | 4330 days | 0% |
| Rey Germain | 9/10 | 4330 days | 0% |
| Christofer Tonn | 10/10 | 4340 days | 0% |
| Ann Furlong | 10/10 | 4348 days | 0% |
| Trudy Ryan | 8/10 | 4348 days | 0% |
| Jill Fischer | 10/10 | 4354 days | 0% |
| Kim | 10/10 | 4354 days | 0% |
| Francois Marchar | 9/10 | 4364 days | 0% |
| Jan Zimmerman | 10/10 | 4369 days | 0% |
| Elvin Teo | 10/10 | 4382 days | 1% |
| Rob | 9/10 | 4430 days | 1% |
| Andreas Garbin | 10/10 | 4432 days | 1% |
| Joanna | 9/10 | 4450 days | 1% |
| Mellow | 10/10 | 4474 days | 1% |
| whalelover88 | 10/10 | 4627 days | 1% |
| Jos Schieveen | 8/10 | 4698 days | 1% |
| Goran Backlund | 9/10 | 4704 days | 1% |
| Nathan Sait | 10/10 | 4711 days | 1% |
| Toby Clark | 10/10 | 4711 days | 1% |
| Maxine Gilman | 10/10 | 4714 days | 1% |
| Harald | 9/10 | 4728 days | 1% |
| Dominik Langenegger | 9/10 | 4730 days | 1% |
| Rebecca Richardson | 9/10 | 4730 days | 1% |
| Andrew Powell | 9/10 | 4730 days | 1% |
| Peter Field | 10/10 | 4730 days | 1% |
| Eric Lombaard | 8/10 | 4731 days | 1% |
| Nicholas Prakenhammar | 10/10 | 4732 days | 1% |
| Peter Wall | 7/10 | 4732 days | 1% |
| Verne Heath | 8/10 | 4733 days | 1% |
| John O'Donnell | 10/10 | 4734 days | 1% |
| Paul Fairbrass | 10/10 | 4741 days | 1% |
| Frank Krivauek | 10/10 | 4742 days | 1% |
| Rocco Christian | 7/10 | 4742 days | 1% |
| Kurt & Noemi Buhler | 7/10 | 4743 days | 1% |
| Therese | 7/10 | 4746 days | 1% |
| Katie K | 9/10 | 4757 days | 1% |
| CMJ | 10/10 | 4779 days | 1% |
| Jacqueline | 10/10 | 4810 days | 1% |
| Marc & Pauline | 9/10 | 4816 days | 1% |
| Kevin & Chris | 9/10 | 4817 days | 1% |
| Robin & Sandra Dijke | 9/10 | 4819 days | 1% |
| Laura McCusker | 8/10 | 4826 days | 1% |
| Dexter | 10/10 | 5024 days | 1% |
| Jasmin Loeffler | 10/10 | 5030 days | 1% |
| Natascha Rachel | 10/10 | 5030 days | 1% |
| Res Kormann | 10/10 | 5043 days | 1% |
| Sarah James | 10/10 | 5053 days | 1% |
| Nick Taylor | 10/10 | 5053 days | 1% |
| Nicola Young | 10/10 | 5053 days | 1% |
| Stefan Elsenbruch | 9/10 | 5058 days | 1% |
| Stefanie | 7/10 | 5068 days | 1% |
| Koen Vanlede | 10/10 | 5071 days | 1% |
| Van Vliet | 8/10 | 5072 days | 1% |
| Vanessa Vogel | 10/10 | 5075 days | 1% |
| Marcel Camsch | 9/10 | 5077 days | 1% |
| Keely & Mark Haynes | 10/10 | 5078 days | 1% |
| Svea Sauter | 10/10 | 5078 days | 1% |
| henriket | 10/10 | 5079 days | 1% |
| Amanda Wells | 10/10 | 5079 days | 1% |
| K & J Overton | 9/10 | 5079 days | 1% |
| Jerry & Floon | 9/10 | 5083 days | 1% |
| Bartl | 10/10 | 5083 days | 1% |
| travellingfamilyof6 | 10/10 | 5085 days | 1% |
| WeddingMaven | 10/10 | 5085 days | 1% |
| Lieve Verdonck | 8/10 | 5086 days | 1% |
| Victoria Purver | 8/10 | 5088 days | 1% |
| Thelia Beament | 9/10 | 5088 days | 1% |
| Edwards | 9/10 | 5092 days | 1% |
| Mark Irwin | 9/10 | 5096 days | 1% |
| Agnes McMillan | 10/10 | 5097 days | 1% |
| Leslie | 9/10 | 5097 days | 1% |
| Selina Mueller | 10/10 | 5099 days | 1% |
| Jill Dean | 10/10 | 5100 days | 1% |
| Chloe Finster | 10/10 | 5100 days | 1% |
| Vanderhorst | 9/10 | 5101 days | 1% |
| Judith K. | 10/10 | 5103 days | 1% |
| Amanda Wallace | 9/10 | 5103 days | 1% |
| Mark Aarts | 10/10 | 5104 days | 1% |
| Forestal Youri | 9/10 | 5105 days | 1% |
| Dave and Lin Mungham | 10/10 | 5106 days | 1% |
| Jane Hancock | 10/10 | 5108 days | 1% |
| Stephi | 10/10 | 5113 days | 1% |
| Amanda | 10/10 | 5113 days | 1% |
| Mick Doherty | 9/10 | 5144 days | 1% |
| hendrik king | 7/10 | 5144 days | 1% |
| Shoe | 10/10 | 5175 days | 1% |
| marcvergroesen | 9/10 | 5389 days | 1% |
| Jenny Leyland | 9/10 | 5389 days | 1% |
| MarcyMark | 10/10 | 5419 days | 1% |
| katrina Marshall | 10/10 | 5436 days | 1% |
| Von | 9/10 | 5450 days | 1% |
| Judith | 8/10 | 5456 days | 1% |
| Doris Resch | 10/10 | 5456 days | 1% |
| Sheila Morgan | 10/10 | 5459 days | 1% |
| Maria Newton | 9/10 | 5460 days | 1% |
| Faller | 10/10 | 5473 days | 1% |
| Wim Van Gastel | 8/10 | 5476 days | 1% |
| Laura Walters | 9/10 | 5477 days | 1% |
| Chance McGuire | 10/10 | 5478 days | 1% |
| cees juffermans | 9/10 | 5491 days | 1% |
| Markus | 10/10 | 5494 days | 1% |
| Grainne Ahern | 10/10 | 5509 days | 1% |
| sutuckey | 10/10 | 5509 days | 1% |
| Honeymooners | 10/10 | 5509 days | 1% |
| sophiep | 9/10 | 5524 days | 1% |
| chuckchallenger | 10/10 | 5540 days | 1% |
| mdarras | 9/10 | 5544 days | 1% |
| joramv | 9/10 | 5544 days | 1% |
| Michelle Kraemer | 10/10 | 5547 days | 1% |
| Kimberly Skyes | 10/10 | 5547 days | 1% |
| Ruth Colmer | 9/10 | 5550 days | 1% |
| maleta | 8/10 | 5561 days | 1% |
| Simon_and_Jane_OZ | 9/10 | 5754 days | 1% |
| JoF | 10/10 | 5776 days | 1% |
| Christian Kamm | 10/10 | 5781 days | 1% |
| Michael Maddams | 7/10 | 5782 days | 1% |
| Joanna Harrnon | 10/10 | 5783 days | 1% |
| Sarah | 8/10 | 5783 days | 1% |
| David | 10/10 | 5784 days | 1% |
| jjakkeren | 9/10 | 5784 days | 1% |
| Alanna | 10/10 | 5785 days | 1% |
| ElissaH | 10/10 | 5786 days | 1% |
| Andrew Smith | 9/10 | 5790 days | 1% |
| Jean | 10/10 | 5800 days | 1% |
| CarinaB1 | 10/10 | 5805 days | 1% |
| Lindsey | 9/10 | 5815 days | 1% |
| Lisa | 10/10 | 5820 days | 1% |
| Laura | 8/10 | 5823 days | 1% |
| kiwibrit86 | 9/10 | 5825 days | 1% |
| Visken | 10/10 | 5827 days | 1% |
| Christina | 10/10 | 5832 days | 1% |
| RachaelO | 10/10 | 5834 days | 1% |
| Marianne | 10/10 | 5834 days | 1% |
| Peppa | 10/10 | 5834 days | 1% |
| Jackie | 9/10 | 5848 days | 1% |
| Patrick | 9/10 | 5848 days | 1% |
| Carla | 8/10 | 5850 days | 1% |
| Keith | 10/10 | 5856 days | 1% |
| Saskia | 9/10 | 5856 days | 1% |
| Patrick | 10/10 | 5860 days | 1% |
| Charlie | 9/10 | 5864 days | 1% |
| Ten | 10/10 | 5864 days | 1% |
| Kevin Dangerfield | 10/10 | 5873 days | 1% |
| Graham | 9/10 | 5888 days | 1% |
| David | 10/10 | 5897 days | 1% |
| Eveline | 10/10 | 5897 days | 1% |
| Mette | 10/10 | 5904 days | 1% |
| Rowan | 9/10 | 5929 days | 1% |
| Hanna | 10/10 | 5929 days | 1% |
| Sally Walker | 10/10 | 5935 days | 1% |
| abby | 10/10 | 5941 days | 1% |
| Paul | 10/10 | 5951 days | 1% |
| Peter | 10/10 | 5959 days | 1% |
| Anna | 10/10 | 5981 days | 1% |
| Liz | 9/10 | 5990 days | 1% |
| Laura | 8/10 | 5990 days | 1% |
| Amy Shields | 7/10 | 5994 days | 1% |
| Erin | 9/10 | 6002 days | 1% |
| George Burgas | 7/10 | 6008 days | 1% |
| Sharon Curly | 7/10 | 6016 days | 1% |
| Peddy | 8/10 | 6019 days | 1% |
| Christine | 9/10 | 6032 days | 1% |
| Charlie Bond | 8/10 | 6065 days | 1% |
| SandyS | 10/10 | 6119 days | 1% |
| BexStar | 10/10 | 6132 days | 1% |
| Galen | 9/10 | 6150 days | 1% |
| Monica Black | 10/10 | 6150 days | 1% |
| Denise | 10/10 | 6167 days | 1% |
| Ria | 9/10 | 6171 days | 1% |
| Christian | 7/10 | 6171 days | 1% |
| Wiebke | 9/10 | 6175 days | 1% |
| Phil Connelly | 9/10 | 6176 days | 1% |
| Amanda | 9/10 | 6182 days | 1% |
| Erwin de Kleijn | 9/10 | 6189 days | 1% |
| Nick | 10/10 | 6198 days | 1% |
| John | 9/10 | 6198 days | 1% |
| Sandra Gustafson | 10/10 | 6226 days | 1% |
| Jo | 10/10 | 6226 days | 1% |
| Helena | 10/10 | 6227 days | 1% |
| Seldam | 8/10 | 6232 days | 1% |
| Andrew Purdam | 7/10 | 6240 days | 1% |
| Gerber Liselotte | 10/10 | 6258 days | 1% |
| Gabriela Herger | 8/10 | 6266 days | 1% |
| Jane Coleman | 8/10 | 6269 days | 1% |
| Wendy Williams | 9/10 | 6276 days | 1% |
| Claire | 8/10 | 6500 days | 1% |
| Will | 9/10 | 6500 days | 1% |
| JanKovar | 10/10 | 6502 days | 1% |
| Justin | 10/10 | 6505 days | 1% |
| Beth | 9/10 | 6511 days | 1% |
| Hanneke | 9/10 | 6512 days | 1% |
| Cat | 8/10 | 6514 days | 1% |
| MartinTrenker | 9/10 | 6520 days | 1% |
| Janneke | 10/10 | 6521 days | 1% |
| Renee | 9/10 | 6524 days | 1% |
| Elke | 8/10 | 6539 days | 1% |
| Malon | 10/10 | 6540 days | 1% |
| Ralph | 10/10 | 6549 days | 1% |
| Lucy | 10/10 | 6549 days | 1% |
| Gordon | 8/10 | 6561 days | 1% |
| Beate | 9/10 | 6562 days | 1% |
| MartinJago | 8/10 | 6573 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
-4.14% Adjustment
There may be an adjustment if this experience hasn't received any reviews within the last 49 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 | -4.08% |
| 198 | -4.10% |
| 199 | -4.12% |
| 200 | -4.14% |
| 201 | -4.16% |
| 202 | -4.18% |
| 203 | -4.20% |
| … | … |
Balancing Adjustment
1.15% 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.