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 Swim with the Dolphins.
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.
91 Valid Reviews
The Swim with the Dolphins experience has a total of 93 reviews. There are 91 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 91 valid reviews:
Rating | Count | Percentage | |
---|---|---|---|
10/10 | 15 |
|
16% |
9/10 | 26 |
|
29% |
8/10 | 25 |
|
27% |
7/10 | 12 |
|
13% |
6/10 | 4 |
|
4% |
5/10 | 2 |
|
2% |
4/10 | 4 |
|
4% |
3/10 | 3 |
|
3% |
2/10 | 0 |
|
0% |
1/10 | 0 |
|
0% |
79.89% Average
The raw data average (mean) for all the Swim with the Dolphins valid reviews is 79.89% and is based on 91 valid reviews. This value is not used to calculate the ranking score and it only provided here as a comparison to the weighted average.
80 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 91 valid reviews, the experience has 80 face-to-face reviews collected during interviews by our team.
Below is the distribution of ratings for the 80 face-to-face reviews:
Rating | Count | Percentage | |
---|---|---|---|
10/10 | 12 |
|
15% |
9/10 | 25 |
|
31% |
8/10 | 24 |
|
30% |
7/10 | 10 |
|
13% |
6/10 | 3 |
|
4% |
5/10 | 1 |
|
1% |
4/10 | 4 |
|
5% |
3/10 | 1 |
|
1% |
2/10 | 0 |
|
0% |
1/10 | 0 |
|
0% |
81.13% Average
The raw data average (mean) for all the Swim with the Dolphins face-to-face reviews is 81.13% and is based on 80 face-to-face reviews. This value is not used to calculate the ranking score and it only provided here for comparison purposes.
81.00%
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 |
---|---|---|---|
Nadja Guiliani | 4/10 | 3255 days | 67% |
Ben Blackwell | 8/10 | 3269 days | 100% |
mathieu boustie | 5/10 | 3366 days | 71% |
Mattias | 7/10 | 3977 days | 34% |
Arnaud Memay | 7/10 | 4058 days | 27% |
Susser | 8/10 | 4058 days | 28% |
Samuel Fritscher | 9/10 | 4366 days | 0% |
Fabian and Teresa | 10/10 | 4392 days | 46% |
Joroen Borkert | 7/10 | 4448 days | 43% |
Faassen | 8/10 | 4469 days | 45% |
Ben Simons | 9/10 | 4732 days | 46% |
Martin Beuker | 4/10 | 4742 days | 30% |
Romla | 8/10 | 4743 days | 45% |
Marie Dutron | 8/10 | 4746 days | 45% |
Preben vil Helmsen | 10/10 | 4748 days | 46% |
Rick & Suus | 8/10 | 4749 days | 45% |
Nora | 9/10 | 4749 days | 46% |
Barry Baily | 9/10 | 4749 days | 46% |
Christiane & Dirk | 8/10 | 4750 days | 45% |
Scott Simpson | 5/10 | 4753 days | 35% |
Wolfgang Beute | 8/10 | 4753 days | 45% |
batzi | 3/10 | 4857 days | 25% |
bow | 3/10 | 5010 days | 25% |
Nick van de Belt | 9/10 | 5079 days | 46% |
Patrick Gloede | 9/10 | 5085 days | 46% |
Stoop | 9/10 | 5088 days | 46% |
Siegfried Tuiel | 10/10 | 5091 days | 46% |
Laura Leigh | 6/10 | 5095 days | 40% |
John Taylor | 7/10 | 5101 days | 43% |
Jon_and_Family | 7/10 | 5102 days | 43% |
Marjan Van Den Braak | 4/10 | 5103 days | 30% |
Wouter Teensma | 8/10 | 5106 days | 45% |
Ann Parry | 10/10 | 5106 days | 46% |
Rob | 8/10 | 5117 days | 45% |
Alan & Gill Geach | 7/10 | 5124 days | 43% |
Sarah Ewing | 9/10 | 5127 days | 46% |
John N | 8/10 | 5461 days | 45% |
Elisabeth Egerup | 10/10 | 5474 days | 46% |
Wielink | 8/10 | 5475 days | 45% |
Pierre Pilon | 9/10 | 5475 days | 46% |
Pascal Auber | 8/10 | 5481 days | 45% |
Lamb | 9/10 | 5494 days | 46% |
Tonny | 8/10 | 5494 days | 45% |
Dawn Campbell | 10/10 | 5526 days | 46% |
guichard | 7/10 | 5546 days | 43% |
HairyHaggis | 10/10 | 5557 days | 46% |
katepat | 10/10 | 5557 days | 46% |
Colin S | 10/10 | 5565 days | 46% |
Ulyate | 6/10 | 5568 days | 40% |
Alex D'Souza | 7/10 | 5618 days | 43% |
Patrick | 9/10 | 5648 days | 46% |
billdee | 10/10 | 5679 days | 46% |
EvertG | 8/10 | 5782 days | 45% |
KatrinK | 10/10 | 5794 days | 46% |
David | 8/10 | 5801 days | 45% |
neeltjec | 9/10 | 5801 days | 46% |
monikav | 10/10 | 5801 days | 46% |
Martien van Brakel | 9/10 | 5801 days | 46% |
kymberlyw | 9/10 | 5802 days | 46% |
Katy1 | 8/10 | 5803 days | 45% |
Anneleen | 8/10 | 5831 days | 45% |
RosC | 6/10 | 5836 days | 40% |
Simon | 9/10 | 5850 days | 46% |
Gunhild | 9/10 | 5865 days | 46% |
Lars | 10/10 | 5868 days | 46% |
Miha | 7/10 | 5906 days | 43% |
Ana | 7/10 | 5913 days | 43% |
Cindy | 9/10 | 5914 days | 46% |
Mark | 9/10 | 5932 days | 46% |
Stephanie Schikora | 10/10 | 5944 days | 46% |
Rhys Howell | 6/10 | 6135 days | 40% |
Ben | 9/10 | 6172 days | 46% |
Vikki | 10/10 | 6177 days | 46% |
Kelly Noirin | 8/10 | 6188 days | 45% |
Ohad | 9/10 | 6194 days | 46% |
Trinkler | 9/10 | 6194 days | 46% |
Nancy Dol | 9/10 | 6198 days | 46% |
George Clark | 7/10 | 6198 days | 43% |
Kathy Hawey | 8/10 | 6200 days | 45% |
Myrtille de Vries | 9/10 | 6205 days | 46% |
Buys | 9/10 | 6206 days | 46% |
Haemnerli | 8/10 | 6206 days | 45% |
Vaclaf | 9/10 | 6212 days | 46% |
Jenny Hulsebosch | 9/10 | 6229 days | 46% |
Willemien | 8/10 | 6293 days | 45% |
Vern | 7/10 | 6403 days | 43% |
James | 8/10 | 6403 days | 45% |
Rietveld | 8/10 | 6559 days | 45% |
Janne | 8/10 | 6571 days | 45% |
Nina | 3/10 | 6573 days | 25% |
Inga | 4/10 | 6573 days | 30% |
Several adjustments to the weighted average are added to improve relevancy and credibility. These adjustments apply equally to all experiences that meet the criteria.
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 Swim with the Dolphins experience has plenty of reviews and does not meet the criteria for any adjustment.
-4.15% Adjustment
There may be an adjustment if this experience hasn't received any reviews within the last 53 days. However the Swim with the Dolphins 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 Swim with the Dolphins experience has been adjusted for 200 days. Adjustments are according to the following table.
Days | Adjustment |
---|---|
… | … |
197 | -4.09% |
198 | -4.11% |
199 | -4.13% |
200 | -4.15% |
201 | -4.17% |
202 | -4.19% |
203 | -4.21% |
… | … |
3.97% 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.
81%
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.