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 Roscos Milford Kayaks.
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.
Roscos Milford Kayaks
Valid Reviews
105 Valid Reviews
The Roscos Milford Kayaks experience has a total of 107 reviews. There are 105 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 105 valid reviews:
| Rating | Count | Percentage | |
|---|---|---|---|
| 10/10 | 47 |
|
45% |
| 9/10 | 32 |
|
30% |
| 8/10 | 16 |
|
15% |
| 7/10 | 7 |
|
7% |
| 6/10 | 2 |
|
2% |
| 5/10 | 1 |
|
1% |
| 4/10 | 0 |
|
0% |
| 3/10 | 0 |
|
0% |
| 2/10 | 0 |
|
0% |
| 1/10 | 0 |
|
0% |
90.67% Average
The raw data average (mean) for all the Roscos Milford Kayaks valid reviews is 90.67% and is based on 105 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
78 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 105 valid reviews, the experience has 78 face-to-face reviews collected during interviews by our team.
Below is the distribution of ratings for the 78 face-to-face reviews:
| Rating | Count | Percentage | |
|---|---|---|---|
| 10/10 | 24 |
|
31% |
| 9/10 | 31 |
|
40% |
| 8/10 | 14 |
|
18% |
| 7/10 | 6 |
|
8% |
| 6/10 | 2 |
|
3% |
| 5/10 | 1 |
|
1% |
| 4/10 | 0 |
|
0% |
| 3/10 | 0 |
|
0% |
| 2/10 | 0 |
|
0% |
| 1/10 | 0 |
|
0% |
88.46% Average
The raw data average (mean) for all the Roscos Milford Kayaks face-to-face reviews is 88.46% and is based on 78 face-to-face reviews. This value is not used to calculate the ranking score and it only provided here for comparison purposes.
Weighted Average
91.24%
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 |
|---|---|---|---|
| Samantha Brewin | 10/10 | 3247 days | 100% |
| Mark Ashmore | 10/10 | 3463 days | 80% |
| Tim Struessmann | 7/10 | 3480 days | 72% |
| Fran and Ben | 10/10 | 3496 days | 76% |
| Alex Hah | 9/10 | 3522 days | 73% |
| Matthew | 8/10 | 3532 days | 71% |
| Stefania Colla | 10/10 | 3539 days | 72% |
| Rick Semo | 10/10 | 3539 days | 72% |
| Jessica Freeland | 9/10 | 3557 days | 70% |
| Ane Pujol | 10/10 | 3561 days | 70% |
| Nicole Joersen | 9/10 | 3579 days | 68% |
| Matthus Groem | 9/10 | 3579 days | 68% |
| Kristin Pogue | 10/10 | 3818 days | 46% |
| Molly Bogeberg | 9/10 | 3840 days | 43% |
| Hugo Alfonso | 10/10 | 3845 days | 43% |
| Bill Priddy | 10/10 | 3845 days | 43% |
| Stephen Ophelder | 10/10 | 3846 days | 43% |
| Horitz | 10/10 | 3859 days | 42% |
| Lindsay Dell | 9/10 | 3869 days | 41% |
| Florian Bellark | 9/10 | 3871 days | 40% |
| Gonne Clasen | 7/10 | 3889 days | 36% |
| Gregory | 9/10 | 3892 days | 39% |
| Maxime Louis | 10/10 | 3896 days | 39% |
| dror cohen | 10/10 | 3906 days | 38% |
| Ludo and Cha | 8/10 | 3931 days | 34% |
| Graham Lighner | 9/10 | 3947 days | 33% |
| Iris Gigacher | 9/10 | 3965 days | 32% |
| Jennifer Brown | 10/10 | 3966 days | 32% |
| Emma | 10/10 | 4211 days | 9% |
| Jam Boggomann | 7/10 | 4298 days | 0% |
| Claudia de Winter | 8/10 | 4548 days | 40% |
| Brian Lexmond | 6/10 | 4549 days | 34% |
| Simeon W | 9/10 | 4559 days | 41% |
| Daniel Robledo | 9/10 | 4578 days | 41% |
| Maria Camen Santos Lopez | 9/10 | 4578 days | 41% |
| Maria = Moller Hansen | 10/10 | 4588 days | 41% |
| Bjorn Houlberg | 10/10 | 4588 days | 41% |
| Michael Uebe | 8/10 | 4608 days | 40% |
| Daniel McAlpine | 10/10 | 4641 days | 41% |
| Kellie | 10/10 | 4641 days | 41% |
| Fjord | 10/10 | 4926 days | 41% |
| Maria Klister | 10/10 | 4926 days | 41% |
| Friederike | 10/10 | 4926 days | 41% |
| Raelene Vine | 10/10 | 4942 days | 41% |
| Jeremy Eng | 8/10 | 4942 days | 40% |
| Luisa | 10/10 | 4947 days | 41% |
| Sohie | 10/10 | 4947 days | 41% |
| Nigel Leighton | 10/10 | 5020 days | 41% |
| Jonathan Vondette | 9/10 | 5023 days | 41% |
| D Pieter | 6/10 | 5030 days | 34% |
| Anne Sutkowi | 10/10 | 5032 days | 41% |
| Karsten Meyer | 8/10 | 5047 days | 40% |
| Green UK | 9/10 | 5288 days | 41% |
| Michael Neumann | 9/10 | 5294 days | 41% |
| jackson78 | 10/10 | 5367 days | 41% |
| C | 10/10 | 5367 days | 41% |
| Extremo | 10/10 | 5398 days | 41% |
| Allan Johnston | 10/10 | 5459 days | 41% |
| Jorge Martinez Gacio | 8/10 | 5653 days | 40% |
| Boi Sagarra | 7/10 | 5656 days | 38% |
| Margit and Corein Groenevelt | 8/10 | 5659 days | 40% |
| Mulder & vanNistelrooij | 8/10 | 5664 days | 40% |
| Fabrizio Consolini | 8/10 | 5664 days | 40% |
| Estel la Prado | 10/10 | 5667 days | 41% |
| Susan Herd | 9/10 | 5668 days | 41% |
| Jessica Vogels | 9/10 | 5671 days | 41% |
| Emma Ducat | 10/10 | 5673 days | 41% |
| Melanie Gruber | 10/10 | 5674 days | 41% |
| Lukis Haertel | 9/10 | 5698 days | 41% |
| ccthornton100 | 9/10 | 6038 days | 41% |
| Nicky and Andy Prescott | 10/10 | 6040 days | 41% |
| David Morton | 8/10 | 6040 days | 40% |
| Thomas K | 9/10 | 6047 days | 41% |
| Belinda Godhard | 9/10 | 6063 days | 41% |
| Thomas Stopp | 9/10 | 6066 days | 41% |
| joannaw | 9/10 | 6113 days | 41% |
| Simon Slawner | 9/10 | 6130 days | 41% |
| Thorben Thede | 7/10 | 6140 days | 38% |
| anne p | 7/10 | 6151 days | 38% |
| eric14 | 8/10 | 6189 days | 40% |
| Sam819 | 10/10 | 6189 days | 41% |
| SandraThomas | 10/10 | 6189 days | 41% |
| MarielR | 8/10 | 6390 days | 40% |
| Donna | 10/10 | 6397 days | 41% |
| Sam Marshall | 7/10 | 6400 days | 38% |
| Peter | 9/10 | 6420 days | 41% |
| Hans | 8/10 | 6420 days | 40% |
| ali_m | 10/10 | 6441 days | 41% |
| Emily | 10/10 | 6479 days | 41% |
| Tom | 10/10 | 6488 days | 41% |
| Aoife | 9/10 | 6546 days | 41% |
| Shannon | 5/10 | 6620 days | 30% |
| Martin | 9/10 | 6639 days | 41% |
| Eric Campbell | 10/10 | 6659 days | 41% |
| Corin Kraft | 10/10 | 6714 days | 41% |
| hobl | 10/10 | 6721 days | 41% |
| cyntha rams | 10/10 | 6746 days | 41% |
| Katy Bray | 9/10 | 6752 days | 41% |
| Vicki | 9/10 | 6770 days | 41% |
| Walter | 9/10 | 6786 days | 41% |
| Sabine | 10/10 | 6786 days | 41% |
| Dupre | 8/10 | 6841 days | 40% |
| Kate and Dave | 10/10 | 6974 days | 41% |
| Susan | 9/10 | 7122 days | 41% |
| Peter | 8/10 | 7142 days | 40% |
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 Roscos Milford Kayaks experience has plenty of reviews and does not meet the criteria for any adjustment.
Recent Reviews Adjustment
-2.83% Adjustment
There may be an adjustment if this experience hasn't received any reviews within the last 83 days. However the Roscos Milford Kayaks 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 Roscos Milford Kayaks experience has been adjusted for 200 days. Adjustments are according to the following table.
| Days | Adjustment |
|---|---|
| … | … |
| 197 | -2.79% |
| 198 | -2.80% |
| 199 | -2.81% |
| 200 | -2.83% |
| 201 | -2.84% |
| 202 | -2.86% |
| 203 | -2.87% |
| … | … |
Balancing Adjustment
1.23% 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.