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
91.35%
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 | 3084 days | 100% |
| Mark Ashmore | 10/10 | 3300 days | 80% |
| Tim Struessmann | 7/10 | 3317 days | 71% |
| Fran and Ben | 10/10 | 3333 days | 77% |
| Alex Hah | 9/10 | 3359 days | 73% |
| Matthew | 8/10 | 3369 days | 71% |
| Stefania Colla | 10/10 | 3376 days | 73% |
| Rick Semo | 10/10 | 3376 days | 73% |
| Jessica Freeland | 9/10 | 3394 days | 70% |
| Ane Pujol | 10/10 | 3398 days | 71% |
| Nicole Joersen | 9/10 | 3416 days | 68% |
| Matthus Groem | 9/10 | 3416 days | 68% |
| Kristin Pogue | 10/10 | 3655 days | 47% |
| Molly Bogeberg | 9/10 | 3677 days | 44% |
| Hugo Alfonso | 10/10 | 3682 days | 44% |
| Bill Priddy | 10/10 | 3682 days | 44% |
| Stephen Ophelder | 10/10 | 3683 days | 44% |
| Horitz | 10/10 | 3696 days | 43% |
| Lindsay Dell | 9/10 | 3706 days | 41% |
| Florian Bellark | 9/10 | 3708 days | 41% |
| Gonne Clasen | 7/10 | 3726 days | 36% |
| Gregory | 9/10 | 3729 days | 39% |
| Maxime Louis | 10/10 | 3733 days | 39% |
| dror cohen | 10/10 | 3743 days | 38% |
| Ludo and Cha | 8/10 | 3768 days | 35% |
| Graham Lighner | 9/10 | 3784 days | 34% |
| Iris Gigacher | 9/10 | 3802 days | 32% |
| Jennifer Brown | 10/10 | 3803 days | 33% |
| Emma | 10/10 | 4048 days | 10% |
| Jam Boggomann | 7/10 | 4135 days | 0% |
| Claudia de Winter | 8/10 | 4385 days | 26% |
| Brian Lexmond | 6/10 | 4386 days | 20% |
| Simeon W | 9/10 | 4396 days | 26% |
| Daniel Robledo | 9/10 | 4415 days | 26% |
| Maria Camen Santos Lopez | 9/10 | 4415 days | 26% |
| Maria = Moller Hansen | 10/10 | 4425 days | 26% |
| Bjorn Houlberg | 10/10 | 4425 days | 26% |
| Michael Uebe | 8/10 | 4445 days | 26% |
| Daniel McAlpine | 10/10 | 4478 days | 26% |
| Kellie | 10/10 | 4478 days | 26% |
| Fjord | 10/10 | 4763 days | 26% |
| Maria Klister | 10/10 | 4763 days | 26% |
| Friederike | 10/10 | 4763 days | 26% |
| Raelene Vine | 10/10 | 4779 days | 26% |
| Jeremy Eng | 8/10 | 4779 days | 26% |
| Luisa | 10/10 | 4784 days | 26% |
| Sohie | 10/10 | 4784 days | 26% |
| Nigel Leighton | 10/10 | 4857 days | 26% |
| Jonathan Vondette | 9/10 | 4860 days | 26% |
| D Pieter | 6/10 | 4867 days | 20% |
| Anne Sutkowi | 10/10 | 4869 days | 26% |
| Karsten Meyer | 8/10 | 4884 days | 26% |
| Green UK | 9/10 | 5125 days | 26% |
| Michael Neumann | 9/10 | 5131 days | 26% |
| jackson78 | 10/10 | 5204 days | 26% |
| C | 10/10 | 5204 days | 26% |
| Extremo | 10/10 | 5235 days | 26% |
| Allan Johnston | 10/10 | 5296 days | 26% |
| Jorge Martinez Gacio | 8/10 | 5490 days | 26% |
| Boi Sagarra | 7/10 | 5493 days | 23% |
| Margit and Corein Groenevelt | 8/10 | 5496 days | 26% |
| Mulder & vanNistelrooij | 8/10 | 5501 days | 26% |
| Fabrizio Consolini | 8/10 | 5501 days | 26% |
| Estel la Prado | 10/10 | 5504 days | 26% |
| Susan Herd | 9/10 | 5505 days | 26% |
| Jessica Vogels | 9/10 | 5508 days | 26% |
| Emma Ducat | 10/10 | 5510 days | 26% |
| Melanie Gruber | 10/10 | 5511 days | 26% |
| Lukis Haertel | 9/10 | 5535 days | 26% |
| ccthornton100 | 9/10 | 5875 days | 26% |
| Nicky and Andy Prescott | 10/10 | 5877 days | 26% |
| David Morton | 8/10 | 5877 days | 26% |
| Thomas K | 9/10 | 5884 days | 26% |
| Belinda Godhard | 9/10 | 5900 days | 26% |
| Thomas Stopp | 9/10 | 5903 days | 26% |
| joannaw | 9/10 | 5950 days | 26% |
| Simon Slawner | 9/10 | 5967 days | 26% |
| Thorben Thede | 7/10 | 5977 days | 23% |
| anne p | 7/10 | 5988 days | 23% |
| eric14 | 8/10 | 6026 days | 26% |
| Sam819 | 10/10 | 6026 days | 26% |
| SandraThomas | 10/10 | 6026 days | 26% |
| MarielR | 8/10 | 6227 days | 26% |
| Donna | 10/10 | 6234 days | 26% |
| Sam Marshall | 7/10 | 6237 days | 23% |
| Peter | 9/10 | 6257 days | 26% |
| Hans | 8/10 | 6257 days | 26% |
| ali_m | 10/10 | 6277 days | 26% |
| Emily | 10/10 | 6316 days | 26% |
| Tom | 10/10 | 6325 days | 26% |
| Aoife | 9/10 | 6383 days | 26% |
| Shannon | 5/10 | 6457 days | 15% |
| Martin | 9/10 | 6476 days | 26% |
| Eric Campbell | 10/10 | 6496 days | 26% |
| Corin Kraft | 10/10 | 6550 days | 26% |
| hobl | 10/10 | 6558 days | 26% |
| cyntha rams | 10/10 | 6583 days | 26% |
| Katy Bray | 9/10 | 6589 days | 26% |
| Vicki | 9/10 | 6607 days | 26% |
| Walter | 9/10 | 6623 days | 26% |
| Sabine | 10/10 | 6623 days | 26% |
| Dupre | 8/10 | 6678 days | 26% |
| Kate and Dave | 10/10 | 6810 days | 26% |
| Susan | 9/10 | 6959 days | 26% |
| Peter | 8/10 | 6979 days | 26% |
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
-3.74% Adjustment
There may be an adjustment if this experience hasn't received any reviews within the last 60 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 | -3.68% |
| 198 | -3.70% |
| 199 | -3.72% |
| 200 | -3.74% |
| 201 | -3.76% |
| 202 | -3.77% |
| 203 | -3.79% |
| … | … |
Balancing Adjustment
1.36% 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
89%
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.