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
93.04%
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 | 501 days | 100% |
| Lisa | 10/10 | 1200 days | 32% |
| Michael Holm | 9/10 | 2717 days | 3% |
| Stefan Zink | 10/10 | 2969 days | 3% |
| Fentrup | 9/10 | 2975 days | 3% |
| Katharina Koch | 10/10 | 2979 days | 3% |
| Aurelie and Ben Marie | 9/10 | 2981 days | 3% |
| Sebastian Braun | 9/10 | 3069 days | 2% |
| Joanne Woo | 10/10 | 3087 days | 2% |
| Chris | 6/10 | 3118 days | 2% |
| Olivier Reculeau | 10/10 | 3303 days | 2% |
| Susanne Breudel | 10/10 | 3308 days | 2% |
| Josh Legge | 10/10 | 3316 days | 2% |
| Daniel Weber | 9/10 | 3318 days | 2% |
| Virginia Fradin | 10/10 | 3322 days | 2% |
| Olivier Anciaux | 9/10 | 3325 days | 2% |
| Wendy van Boom | 10/10 | 3325 days | 2% |
| Bas Hoogteijling | 10/10 | 3328 days | 2% |
| Mira Huckfield | 10/10 | 3338 days | 2% |
| Maike Santelmann | 10/10 | 3350 days | 2% |
| Levin Stuers | 10/10 | 3355 days | 2% |
| magdalena gomez haedo | 9/10 | 3358 days | 2% |
| Lucca Weisbender | 10/10 | 3361 days | 2% |
| Anna Scholten | 10/10 | 3361 days | 2% |
| Nils Kissel | 10/10 | 3371 days | 2% |
| Madita and Lisann | 10/10 | 3407 days | 2% |
| sanneke tangel | 10/10 | 3413 days | 2% |
| Georgia Coleman | 10/10 | 3413 days | 2% |
| Virgil Spruit | 8/10 | 3417 days | 2% |
| Xue Rong Kok | 7/10 | 3423 days | 1% |
| Anthony Jacobs | 10/10 | 3545 days | 1% |
| Sofie Jebsen | 10/10 | 3687 days | 1% |
| Tobias | 10/10 | 3687 days | 1% |
| Annika Funk | 10/10 | 3723 days | 1% |
| Dawn Mulligan | 10/10 | 3739 days | 1% |
| Christophe Scieszka | 10/10 | 3757 days | 1% |
| Hubert | 8/10 | 3796 days | 1% |
| Ondrej Stepanek | 8/10 | 4032 days | 0% |
| Boneschova Jarka | 10/10 | 4032 days | 0% |
| Heike Heller | 10/10 | 4041 days | 0% |
| Andreas Mouteiro | 9/10 | 4041 days | 0% |
| Josefin Lind | 10/10 | 4042 days | 0% |
| Herman Holmgist | 10/10 | 4042 days | 0% |
| Felicitas | 9/10 | 4064 days | 0% |
| Antoine | 8/10 | 4072 days | 0% |
| Mara K | 10/10 | 4091 days | 0% |
| Emilie Chanbon | 10/10 | 4094 days | 0% |
| Alexis Redor | 10/10 | 4094 days | 0% |
| Julia Amberger | 8/10 | 4113 days | 0% |
| Annalina Drebald | 8/10 | 4113 days | 0% |
| balesdent | 9/10 | 4119 days | 0% |
| Alineet Gautier | 10/10 | 4122 days | 0% |
| Annika Schmidt | 10/10 | 4402 days | 1% |
| Patrick Stoeit | 10/10 | 4402 days | 1% |
| Audrey Ripoche | 9/10 | 4404 days | 1% |
| Rey Germain | 9/10 | 4404 days | 1% |
| Christofer Tonn | 10/10 | 4414 days | 1% |
| Ann Furlong | 10/10 | 4422 days | 1% |
| Trudy Ryan | 8/10 | 4422 days | 1% |
| Jill Fischer | 10/10 | 4428 days | 1% |
| Kim | 10/10 | 4428 days | 1% |
| Francois Marchar | 9/10 | 4438 days | 1% |
| Jan Zimmerman | 10/10 | 4443 days | 1% |
| Elvin Teo | 10/10 | 4456 days | 1% |
| Rob | 9/10 | 4504 days | 1% |
| Andreas Garbin | 10/10 | 4506 days | 1% |
| Joanna | 9/10 | 4524 days | 1% |
| Mellow | 10/10 | 4548 days | 1% |
| whalelover88 | 10/10 | 4701 days | 1% |
| Jos Schieveen | 8/10 | 4772 days | 1% |
| Goran Backlund | 9/10 | 4778 days | 1% |
| Nathan Sait | 10/10 | 4785 days | 1% |
| Toby Clark | 10/10 | 4785 days | 1% |
| Maxine Gilman | 10/10 | 4788 days | 1% |
| Harald | 9/10 | 4802 days | 1% |
| Dominik Langenegger | 9/10 | 4804 days | 1% |
| Rebecca Richardson | 9/10 | 4804 days | 1% |
| Andrew Powell | 9/10 | 4804 days | 1% |
| Peter Field | 10/10 | 4804 days | 1% |
| Eric Lombaard | 8/10 | 4805 days | 1% |
| Nicholas Prakenhammar | 10/10 | 4806 days | 1% |
| Peter Wall | 7/10 | 4806 days | 1% |
| Verne Heath | 8/10 | 4807 days | 1% |
| John O'Donnell | 10/10 | 4808 days | 1% |
| Paul Fairbrass | 10/10 | 4815 days | 1% |
| Frank Krivauek | 10/10 | 4816 days | 1% |
| Rocco Christian | 7/10 | 4816 days | 1% |
| Kurt & Noemi Buhler | 7/10 | 4817 days | 1% |
| Therese | 7/10 | 4820 days | 1% |
| Katie K | 9/10 | 4831 days | 1% |
| CMJ | 10/10 | 4853 days | 1% |
| Jacqueline | 10/10 | 4884 days | 1% |
| Marc & Pauline | 9/10 | 4890 days | 1% |
| Kevin & Chris | 9/10 | 4891 days | 1% |
| Robin & Sandra Dijke | 9/10 | 4893 days | 1% |
| Laura McCusker | 8/10 | 4900 days | 1% |
| Dexter | 10/10 | 5098 days | 1% |
| Jasmin Loeffler | 10/10 | 5104 days | 1% |
| Natascha Rachel | 10/10 | 5104 days | 1% |
| Res Kormann | 10/10 | 5117 days | 1% |
| Sarah James | 10/10 | 5127 days | 1% |
| Nick Taylor | 10/10 | 5127 days | 1% |
| Nicola Young | 10/10 | 5127 days | 1% |
| Stefan Elsenbruch | 9/10 | 5132 days | 1% |
| Stefanie | 7/10 | 5142 days | 1% |
| Koen Vanlede | 10/10 | 5145 days | 1% |
| Van Vliet | 8/10 | 5146 days | 1% |
| Vanessa Vogel | 10/10 | 5149 days | 1% |
| Marcel Camsch | 9/10 | 5151 days | 1% |
| Keely & Mark Haynes | 10/10 | 5152 days | 1% |
| Svea Sauter | 10/10 | 5152 days | 1% |
| henriket | 10/10 | 5153 days | 1% |
| Amanda Wells | 10/10 | 5153 days | 1% |
| K & J Overton | 9/10 | 5153 days | 1% |
| Jerry & Floon | 9/10 | 5157 days | 1% |
| Bartl | 10/10 | 5157 days | 1% |
| travellingfamilyof6 | 10/10 | 5159 days | 1% |
| WeddingMaven | 10/10 | 5159 days | 1% |
| Lieve Verdonck | 8/10 | 5160 days | 1% |
| Victoria Purver | 8/10 | 5162 days | 1% |
| Thelia Beament | 9/10 | 5162 days | 1% |
| Edwards | 9/10 | 5166 days | 1% |
| Mark Irwin | 9/10 | 5170 days | 1% |
| Agnes McMillan | 10/10 | 5171 days | 1% |
| Leslie | 9/10 | 5171 days | 1% |
| Selina Mueller | 10/10 | 5173 days | 1% |
| Jill Dean | 10/10 | 5174 days | 1% |
| Chloe Finster | 10/10 | 5174 days | 1% |
| Vanderhorst | 9/10 | 5175 days | 1% |
| Judith K. | 10/10 | 5177 days | 1% |
| Amanda Wallace | 9/10 | 5177 days | 1% |
| Mark Aarts | 10/10 | 5178 days | 1% |
| Forestal Youri | 9/10 | 5179 days | 1% |
| Dave and Lin Mungham | 10/10 | 5180 days | 1% |
| Jane Hancock | 10/10 | 5182 days | 1% |
| Stephi | 10/10 | 5187 days | 1% |
| Amanda | 10/10 | 5187 days | 1% |
| Mick Doherty | 9/10 | 5218 days | 1% |
| hendrik king | 7/10 | 5218 days | 1% |
| Shoe | 10/10 | 5249 days | 1% |
| marcvergroesen | 9/10 | 5463 days | 1% |
| Jenny Leyland | 9/10 | 5463 days | 1% |
| MarcyMark | 10/10 | 5493 days | 1% |
| katrina Marshall | 10/10 | 5510 days | 1% |
| Von | 9/10 | 5524 days | 1% |
| Judith | 8/10 | 5530 days | 1% |
| Doris Resch | 10/10 | 5530 days | 1% |
| Sheila Morgan | 10/10 | 5533 days | 1% |
| Maria Newton | 9/10 | 5534 days | 1% |
| Faller | 10/10 | 5547 days | 1% |
| Wim Van Gastel | 8/10 | 5550 days | 1% |
| Laura Walters | 9/10 | 5551 days | 1% |
| Chance McGuire | 10/10 | 5552 days | 1% |
| cees juffermans | 9/10 | 5565 days | 1% |
| Markus | 10/10 | 5568 days | 1% |
| Grainne Ahern | 10/10 | 5583 days | 1% |
| sutuckey | 10/10 | 5583 days | 1% |
| Honeymooners | 10/10 | 5583 days | 1% |
| sophiep | 9/10 | 5598 days | 1% |
| chuckchallenger | 10/10 | 5614 days | 1% |
| mdarras | 9/10 | 5618 days | 1% |
| joramv | 9/10 | 5618 days | 1% |
| Michelle Kraemer | 10/10 | 5621 days | 1% |
| Kimberly Skyes | 10/10 | 5621 days | 1% |
| Ruth Colmer | 9/10 | 5624 days | 1% |
| maleta | 8/10 | 5635 days | 1% |
| Simon_and_Jane_OZ | 9/10 | 5828 days | 1% |
| JoF | 10/10 | 5850 days | 1% |
| Christian Kamm | 10/10 | 5855 days | 1% |
| Michael Maddams | 7/10 | 5856 days | 1% |
| Joanna Harrnon | 10/10 | 5857 days | 1% |
| Sarah | 8/10 | 5857 days | 1% |
| David | 10/10 | 5858 days | 1% |
| jjakkeren | 9/10 | 5858 days | 1% |
| Alanna | 10/10 | 5859 days | 1% |
| ElissaH | 10/10 | 5860 days | 1% |
| Andrew Smith | 9/10 | 5864 days | 1% |
| Jean | 10/10 | 5874 days | 1% |
| CarinaB1 | 10/10 | 5879 days | 1% |
| Lindsey | 9/10 | 5889 days | 1% |
| Lisa | 10/10 | 5895 days | 1% |
| Laura | 8/10 | 5897 days | 1% |
| kiwibrit86 | 9/10 | 5900 days | 1% |
| Visken | 10/10 | 5901 days | 1% |
| Christina | 10/10 | 5906 days | 1% |
| RachaelO | 10/10 | 5908 days | 1% |
| Marianne | 10/10 | 5909 days | 1% |
| Peppa | 10/10 | 5909 days | 1% |
| Jackie | 9/10 | 5923 days | 1% |
| Patrick | 9/10 | 5923 days | 1% |
| Carla | 8/10 | 5924 days | 1% |
| Keith | 10/10 | 5930 days | 1% |
| Saskia | 9/10 | 5930 days | 1% |
| Patrick | 10/10 | 5935 days | 1% |
| Charlie | 9/10 | 5939 days | 1% |
| Ten | 10/10 | 5939 days | 1% |
| Kevin Dangerfield | 10/10 | 5948 days | 1% |
| Graham | 9/10 | 5962 days | 1% |
| David | 10/10 | 5971 days | 1% |
| Eveline | 10/10 | 5971 days | 1% |
| Mette | 10/10 | 5978 days | 1% |
| Rowan | 9/10 | 6003 days | 1% |
| Hanna | 10/10 | 6003 days | 1% |
| Sally Walker | 10/10 | 6009 days | 1% |
| abby | 10/10 | 6015 days | 1% |
| Paul | 10/10 | 6025 days | 1% |
| Peter | 10/10 | 6033 days | 1% |
| Anna | 10/10 | 6055 days | 1% |
| Liz | 9/10 | 6064 days | 1% |
| Laura | 8/10 | 6064 days | 1% |
| Amy Shields | 7/10 | 6069 days | 1% |
| Erin | 9/10 | 6076 days | 1% |
| George Burgas | 7/10 | 6082 days | 1% |
| Sharon Curly | 7/10 | 6090 days | 1% |
| Peddy | 8/10 | 6093 days | 1% |
| Christine | 9/10 | 6106 days | 1% |
| Charlie Bond | 8/10 | 6140 days | 1% |
| SandyS | 10/10 | 6193 days | 1% |
| BexStar | 10/10 | 6207 days | 1% |
| Galen | 9/10 | 6224 days | 1% |
| Monica Black | 10/10 | 6224 days | 1% |
| Denise | 10/10 | 6241 days | 1% |
| Ria | 9/10 | 6245 days | 1% |
| Christian | 7/10 | 6245 days | 1% |
| Wiebke | 9/10 | 6249 days | 1% |
| Phil Connelly | 9/10 | 6250 days | 1% |
| Amanda | 9/10 | 6256 days | 1% |
| Erwin de Kleijn | 9/10 | 6263 days | 1% |
| Nick | 10/10 | 6272 days | 1% |
| John | 9/10 | 6272 days | 1% |
| Sandra Gustafson | 10/10 | 6300 days | 1% |
| Jo | 10/10 | 6300 days | 1% |
| Helena | 10/10 | 6301 days | 1% |
| Seldam | 8/10 | 6306 days | 1% |
| Andrew Purdam | 7/10 | 6314 days | 1% |
| Gerber Liselotte | 10/10 | 6332 days | 1% |
| Gabriela Herger | 8/10 | 6340 days | 1% |
| Jane Coleman | 8/10 | 6343 days | 1% |
| Wendy Williams | 9/10 | 6350 days | 1% |
| Claire | 8/10 | 6574 days | 1% |
| Will | 9/10 | 6574 days | 1% |
| JanKovar | 10/10 | 6576 days | 1% |
| Justin | 10/10 | 6579 days | 1% |
| Beth | 9/10 | 6585 days | 1% |
| Hanneke | 9/10 | 6586 days | 1% |
| Cat | 8/10 | 6588 days | 1% |
| MartinTrenker | 9/10 | 6594 days | 1% |
| Janneke | 10/10 | 6595 days | 1% |
| Renee | 9/10 | 6598 days | 1% |
| Elke | 8/10 | 6613 days | 1% |
| Malon | 10/10 | 6614 days | 1% |
| Ralph | 10/10 | 6623 days | 1% |
| Lucy | 10/10 | 6623 days | 1% |
| Gordon | 8/10 | 6635 days | 1% |
| Beate | 9/10 | 6636 days | 1% |
| MartinJago | 8/10 | 6647 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
-3.46% Adjustment
There may be an adjustment if this experience hasn't received any reviews within the last 66 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 | -3.41% |
| 198 | -3.43% |
| 199 | -3.45% |
| 200 | -3.46% |
| 201 | -3.48% |
| 202 | -3.50% |
| 203 | -3.52% |
| … | … |
Balancing Adjustment
1.06% 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.