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
93.05%
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 | 459 days | 100% |
| Lisa | 10/10 | 1158 days | 35% |
| Michael Holm | 9/10 | 2675 days | 4% |
| Stefan Zink | 10/10 | 2927 days | 3% |
| Fentrup | 9/10 | 2933 days | 3% |
| Katharina Koch | 10/10 | 2937 days | 3% |
| Aurelie and Ben Marie | 9/10 | 2939 days | 3% |
| Sebastian Braun | 9/10 | 3027 days | 3% |
| Joanne Woo | 10/10 | 3044 days | 3% |
| Chris | 6/10 | 3075 days | 3% |
| Olivier Reculeau | 10/10 | 3261 days | 2% |
| Susanne Breudel | 10/10 | 3266 days | 2% |
| Josh Legge | 10/10 | 3274 days | 2% |
| Daniel Weber | 9/10 | 3276 days | 2% |
| Virginia Fradin | 10/10 | 3280 days | 2% |
| Olivier Anciaux | 9/10 | 3283 days | 2% |
| Wendy van Boom | 10/10 | 3283 days | 2% |
| Bas Hoogteijling | 10/10 | 3286 days | 2% |
| Mira Huckfield | 10/10 | 3296 days | 2% |
| Maike Santelmann | 10/10 | 3308 days | 2% |
| Levin Stuers | 10/10 | 3313 days | 2% |
| magdalena gomez haedo | 9/10 | 3316 days | 2% |
| Lucca Weisbender | 10/10 | 3318 days | 2% |
| Anna Scholten | 10/10 | 3319 days | 2% |
| Nils Kissel | 10/10 | 3329 days | 2% |
| Madita and Lisann | 10/10 | 3365 days | 2% |
| sanneke tangel | 10/10 | 3371 days | 2% |
| Georgia Coleman | 10/10 | 3371 days | 2% |
| Virgil Spruit | 8/10 | 3375 days | 2% |
| Xue Rong Kok | 7/10 | 3380 days | 2% |
| Anthony Jacobs | 10/10 | 3502 days | 2% |
| Sofie Jebsen | 10/10 | 3645 days | 2% |
| Tobias | 10/10 | 3645 days | 2% |
| Annika Funk | 10/10 | 3681 days | 2% |
| Dawn Mulligan | 10/10 | 3697 days | 2% |
| Christophe Scieszka | 10/10 | 3714 days | 1% |
| Hubert | 8/10 | 3754 days | 1% |
| Ondrej Stepanek | 8/10 | 3990 days | 1% |
| Boneschova Jarka | 10/10 | 3990 days | 1% |
| Heike Heller | 10/10 | 3999 days | 1% |
| Andreas Mouteiro | 9/10 | 3999 days | 1% |
| Josefin Lind | 10/10 | 4000 days | 1% |
| Herman Holmgist | 10/10 | 4000 days | 1% |
| Felicitas | 9/10 | 4022 days | 1% |
| Antoine | 8/10 | 4030 days | 1% |
| Mara K | 10/10 | 4049 days | 1% |
| Emilie Chanbon | 10/10 | 4052 days | 1% |
| Alexis Redor | 10/10 | 4052 days | 1% |
| Julia Amberger | 8/10 | 4071 days | 1% |
| Annalina Drebald | 8/10 | 4071 days | 1% |
| balesdent | 9/10 | 4077 days | 1% |
| Alineet Gautier | 10/10 | 4080 days | 1% |
| Annika Schmidt | 10/10 | 4360 days | 0% |
| Patrick Stoeit | 10/10 | 4360 days | 0% |
| Audrey Ripoche | 9/10 | 4362 days | 0% |
| Rey Germain | 9/10 | 4362 days | 0% |
| Christofer Tonn | 10/10 | 4372 days | 0% |
| Ann Furlong | 10/10 | 4380 days | 1% |
| Trudy Ryan | 8/10 | 4380 days | 1% |
| Jill Fischer | 10/10 | 4386 days | 1% |
| Kim | 10/10 | 4386 days | 1% |
| Francois Marchar | 9/10 | 4396 days | 1% |
| Jan Zimmerman | 10/10 | 4401 days | 1% |
| Elvin Teo | 10/10 | 4414 days | 1% |
| Rob | 9/10 | 4462 days | 1% |
| Andreas Garbin | 10/10 | 4464 days | 1% |
| Joanna | 9/10 | 4482 days | 1% |
| Mellow | 10/10 | 4506 days | 1% |
| whalelover88 | 10/10 | 4659 days | 1% |
| Jos Schieveen | 8/10 | 4730 days | 1% |
| Goran Backlund | 9/10 | 4736 days | 1% |
| Nathan Sait | 10/10 | 4743 days | 1% |
| Toby Clark | 10/10 | 4743 days | 1% |
| Maxine Gilman | 10/10 | 4746 days | 1% |
| Harald | 9/10 | 4760 days | 1% |
| Dominik Langenegger | 9/10 | 4762 days | 1% |
| Rebecca Richardson | 9/10 | 4762 days | 1% |
| Andrew Powell | 9/10 | 4762 days | 1% |
| Peter Field | 10/10 | 4762 days | 1% |
| Eric Lombaard | 8/10 | 4763 days | 1% |
| Nicholas Prakenhammar | 10/10 | 4764 days | 1% |
| Peter Wall | 7/10 | 4764 days | 1% |
| Verne Heath | 8/10 | 4765 days | 1% |
| John O'Donnell | 10/10 | 4766 days | 1% |
| Paul Fairbrass | 10/10 | 4773 days | 1% |
| Frank Krivauek | 10/10 | 4774 days | 1% |
| Rocco Christian | 7/10 | 4774 days | 1% |
| Kurt & Noemi Buhler | 7/10 | 4775 days | 1% |
| Therese | 7/10 | 4778 days | 1% |
| Katie K | 9/10 | 4789 days | 1% |
| CMJ | 10/10 | 4811 days | 1% |
| Jacqueline | 10/10 | 4842 days | 1% |
| Marc & Pauline | 9/10 | 4848 days | 1% |
| Kevin & Chris | 9/10 | 4849 days | 1% |
| Robin & Sandra Dijke | 9/10 | 4851 days | 1% |
| Laura McCusker | 8/10 | 4858 days | 1% |
| Dexter | 10/10 | 5056 days | 1% |
| Jasmin Loeffler | 10/10 | 5062 days | 1% |
| Natascha Rachel | 10/10 | 5062 days | 1% |
| Res Kormann | 10/10 | 5075 days | 1% |
| Sarah James | 10/10 | 5085 days | 1% |
| Nick Taylor | 10/10 | 5085 days | 1% |
| Nicola Young | 10/10 | 5085 days | 1% |
| Stefan Elsenbruch | 9/10 | 5090 days | 1% |
| Stefanie | 7/10 | 5100 days | 1% |
| Koen Vanlede | 10/10 | 5103 days | 1% |
| Van Vliet | 8/10 | 5104 days | 1% |
| Vanessa Vogel | 10/10 | 5107 days | 1% |
| Marcel Camsch | 9/10 | 5109 days | 1% |
| Keely & Mark Haynes | 10/10 | 5110 days | 1% |
| Svea Sauter | 10/10 | 5110 days | 1% |
| henriket | 10/10 | 5111 days | 1% |
| Amanda Wells | 10/10 | 5111 days | 1% |
| K & J Overton | 9/10 | 5111 days | 1% |
| Jerry & Floon | 9/10 | 5115 days | 1% |
| Bartl | 10/10 | 5115 days | 1% |
| travellingfamilyof6 | 10/10 | 5117 days | 1% |
| WeddingMaven | 10/10 | 5117 days | 1% |
| Lieve Verdonck | 8/10 | 5118 days | 1% |
| Victoria Purver | 8/10 | 5120 days | 1% |
| Thelia Beament | 9/10 | 5120 days | 1% |
| Edwards | 9/10 | 5124 days | 1% |
| Mark Irwin | 9/10 | 5128 days | 1% |
| Agnes McMillan | 10/10 | 5129 days | 1% |
| Leslie | 9/10 | 5129 days | 1% |
| Selina Mueller | 10/10 | 5131 days | 1% |
| Jill Dean | 10/10 | 5132 days | 1% |
| Chloe Finster | 10/10 | 5132 days | 1% |
| Vanderhorst | 9/10 | 5133 days | 1% |
| Judith K. | 10/10 | 5135 days | 1% |
| Amanda Wallace | 9/10 | 5135 days | 1% |
| Mark Aarts | 10/10 | 5136 days | 1% |
| Forestal Youri | 9/10 | 5137 days | 1% |
| Dave and Lin Mungham | 10/10 | 5138 days | 1% |
| Jane Hancock | 10/10 | 5140 days | 1% |
| Stephi | 10/10 | 5145 days | 1% |
| Amanda | 10/10 | 5145 days | 1% |
| Mick Doherty | 9/10 | 5176 days | 1% |
| hendrik king | 7/10 | 5176 days | 1% |
| Shoe | 10/10 | 5207 days | 1% |
| marcvergroesen | 9/10 | 5421 days | 1% |
| Jenny Leyland | 9/10 | 5421 days | 1% |
| MarcyMark | 10/10 | 5451 days | 1% |
| katrina Marshall | 10/10 | 5468 days | 1% |
| Von | 9/10 | 5482 days | 1% |
| Judith | 8/10 | 5488 days | 1% |
| Doris Resch | 10/10 | 5488 days | 1% |
| Sheila Morgan | 10/10 | 5491 days | 1% |
| Maria Newton | 9/10 | 5492 days | 1% |
| Faller | 10/10 | 5505 days | 1% |
| Wim Van Gastel | 8/10 | 5508 days | 1% |
| Laura Walters | 9/10 | 5509 days | 1% |
| Chance McGuire | 10/10 | 5510 days | 1% |
| cees juffermans | 9/10 | 5523 days | 1% |
| Markus | 10/10 | 5526 days | 1% |
| Grainne Ahern | 10/10 | 5541 days | 1% |
| sutuckey | 10/10 | 5541 days | 1% |
| Honeymooners | 10/10 | 5541 days | 1% |
| sophiep | 9/10 | 5556 days | 1% |
| chuckchallenger | 10/10 | 5572 days | 1% |
| mdarras | 9/10 | 5576 days | 1% |
| joramv | 9/10 | 5576 days | 1% |
| Michelle Kraemer | 10/10 | 5579 days | 1% |
| Kimberly Skyes | 10/10 | 5579 days | 1% |
| Ruth Colmer | 9/10 | 5582 days | 1% |
| maleta | 8/10 | 5593 days | 1% |
| Simon_and_Jane_OZ | 9/10 | 5786 days | 1% |
| JoF | 10/10 | 5808 days | 1% |
| Christian Kamm | 10/10 | 5813 days | 1% |
| Michael Maddams | 7/10 | 5814 days | 1% |
| Joanna Harrnon | 10/10 | 5815 days | 1% |
| Sarah | 8/10 | 5815 days | 1% |
| David | 10/10 | 5816 days | 1% |
| jjakkeren | 9/10 | 5816 days | 1% |
| Alanna | 10/10 | 5817 days | 1% |
| ElissaH | 10/10 | 5818 days | 1% |
| Andrew Smith | 9/10 | 5822 days | 1% |
| Jean | 10/10 | 5832 days | 1% |
| CarinaB1 | 10/10 | 5837 days | 1% |
| Lindsey | 9/10 | 5847 days | 1% |
| Lisa | 10/10 | 5852 days | 1% |
| Laura | 8/10 | 5855 days | 1% |
| kiwibrit86 | 9/10 | 5857 days | 1% |
| Visken | 10/10 | 5859 days | 1% |
| Christina | 10/10 | 5864 days | 1% |
| RachaelO | 10/10 | 5866 days | 1% |
| Marianne | 10/10 | 5866 days | 1% |
| Peppa | 10/10 | 5866 days | 1% |
| Jackie | 9/10 | 5880 days | 1% |
| Patrick | 9/10 | 5880 days | 1% |
| Carla | 8/10 | 5882 days | 1% |
| Keith | 10/10 | 5888 days | 1% |
| Saskia | 9/10 | 5888 days | 1% |
| Patrick | 10/10 | 5892 days | 1% |
| Charlie | 9/10 | 5896 days | 1% |
| Ten | 10/10 | 5896 days | 1% |
| Kevin Dangerfield | 10/10 | 5905 days | 1% |
| Graham | 9/10 | 5920 days | 1% |
| David | 10/10 | 5929 days | 1% |
| Eveline | 10/10 | 5929 days | 1% |
| Mette | 10/10 | 5936 days | 1% |
| Rowan | 9/10 | 5961 days | 1% |
| Hanna | 10/10 | 5961 days | 1% |
| Sally Walker | 10/10 | 5967 days | 1% |
| abby | 10/10 | 5973 days | 1% |
| Paul | 10/10 | 5983 days | 1% |
| Peter | 10/10 | 5991 days | 1% |
| Anna | 10/10 | 6013 days | 1% |
| Liz | 9/10 | 6022 days | 1% |
| Laura | 8/10 | 6022 days | 1% |
| Amy Shields | 7/10 | 6026 days | 1% |
| Erin | 9/10 | 6034 days | 1% |
| George Burgas | 7/10 | 6040 days | 1% |
| Sharon Curly | 7/10 | 6048 days | 1% |
| Peddy | 8/10 | 6051 days | 1% |
| Christine | 9/10 | 6064 days | 1% |
| Charlie Bond | 8/10 | 6097 days | 1% |
| SandyS | 10/10 | 6151 days | 1% |
| BexStar | 10/10 | 6164 days | 1% |
| Galen | 9/10 | 6182 days | 1% |
| Monica Black | 10/10 | 6182 days | 1% |
| Denise | 10/10 | 6199 days | 1% |
| Ria | 9/10 | 6203 days | 1% |
| Christian | 7/10 | 6203 days | 1% |
| Wiebke | 9/10 | 6207 days | 1% |
| Phil Connelly | 9/10 | 6208 days | 1% |
| Amanda | 9/10 | 6214 days | 1% |
| Erwin de Kleijn | 9/10 | 6221 days | 1% |
| Nick | 10/10 | 6230 days | 1% |
| John | 9/10 | 6230 days | 1% |
| Sandra Gustafson | 10/10 | 6258 days | 1% |
| Jo | 10/10 | 6258 days | 1% |
| Helena | 10/10 | 6259 days | 1% |
| Seldam | 8/10 | 6264 days | 1% |
| Andrew Purdam | 7/10 | 6272 days | 1% |
| Gerber Liselotte | 10/10 | 6290 days | 1% |
| Gabriela Herger | 8/10 | 6298 days | 1% |
| Jane Coleman | 8/10 | 6301 days | 1% |
| Wendy Williams | 9/10 | 6308 days | 1% |
| Claire | 8/10 | 6532 days | 1% |
| Will | 9/10 | 6532 days | 1% |
| JanKovar | 10/10 | 6534 days | 1% |
| Justin | 10/10 | 6537 days | 1% |
| Beth | 9/10 | 6543 days | 1% |
| Hanneke | 9/10 | 6544 days | 1% |
| Cat | 8/10 | 6546 days | 1% |
| MartinTrenker | 9/10 | 6552 days | 1% |
| Janneke | 10/10 | 6553 days | 1% |
| Renee | 9/10 | 6556 days | 1% |
| Elke | 8/10 | 6571 days | 1% |
| Malon | 10/10 | 6572 days | 1% |
| Ralph | 10/10 | 6581 days | 1% |
| Lucy | 10/10 | 6581 days | 1% |
| Gordon | 8/10 | 6593 days | 1% |
| Beate | 9/10 | 6594 days | 1% |
| MartinJago | 8/10 | 6605 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
-4.09% Adjustment
There may be an adjustment if this experience hasn't received any reviews within the last 55 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 | -4.03% |
| 198 | -4.05% |
| 199 | -4.07% |
| 200 | -4.09% |
| 201 | -4.11% |
| 202 | -4.13% |
| 203 | -4.15% |
| … | … |
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.