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 106 reviews. There are 105 valid reviews that are included when calculating the ranking score and 1 invalid review 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
91.42%
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 | 2588 days | 100% |
| Mark Ashmore | 10/10 | 2804 days | 88% |
| Tim Struessmann | 7/10 | 2821 days | 81% |
| Fran and Ben | 10/10 | 2837 days | 86% |
| Alex Hah | 9/10 | 2863 days | 84% |
| Matthew | 8/10 | 2873 days | 82% |
| Stefania Colla | 10/10 | 2881 days | 84% |
| Rick Semo | 10/10 | 2881 days | 84% |
| Jessica Freeland | 9/10 | 2898 days | 82% |
| Ane Pujol | 10/10 | 2902 days | 82% |
| Nicole Joersen | 9/10 | 2920 days | 81% |
| Matthus Groem | 9/10 | 2920 days | 81% |
| Kristin Pogue | 10/10 | 3159 days | 68% |
| Molly Bogeberg | 9/10 | 3181 days | 66% |
| Hugo Alfonso | 10/10 | 3187 days | 66% |
| Bill Priddy | 10/10 | 3187 days | 66% |
| Stephen Ophelder | 10/10 | 3187 days | 66% |
| Horitz | 10/10 | 3200 days | 66% |
| Lindsay Dell | 9/10 | 3210 days | 65% |
| Florian Bellark | 9/10 | 3212 days | 64% |
| Gonne Clasen | 7/10 | 3230 days | 60% |
| Gregory | 9/10 | 3233 days | 63% |
| Maxime Louis | 10/10 | 3237 days | 64% |
| dror cohen | 10/10 | 3247 days | 63% |
| Ludo and Cha | 8/10 | 3272 days | 60% |
| Graham Lighner | 9/10 | 3288 days | 60% |
| Iris Gigacher | 9/10 | 3306 days | 59% |
| Jennifer Brown | 10/10 | 3308 days | 60% |
| Emma | 10/10 | 3553 days | 46% |
| Jam Boggomann | 7/10 | 3639 days | 38% |
| Claudia de Winter | 8/10 | 3889 days | 27% |
| Brian Lexmond | 6/10 | 3890 days | 23% |
| Simeon W | 9/10 | 3900 days | 26% |
| Daniel Robledo | 9/10 | 3919 days | 25% |
| Maria Camen Santos Lopez | 9/10 | 3919 days | 25% |
| Maria = Moller Hansen | 10/10 | 3929 days | 25% |
| Bjorn Houlberg | 10/10 | 3929 days | 25% |
| Michael Uebe | 8/10 | 3949 days | 23% |
| Daniel McAlpine | 10/10 | 3982 days | 22% |
| Kellie | 10/10 | 3982 days | 22% |
| Fjord | 10/10 | 4267 days | 6% |
| Maria Klister | 10/10 | 4267 days | 6% |
| Friederike | 10/10 | 4267 days | 6% |
| Raelene Vine | 10/10 | 4283 days | 5% |
| Jeremy Eng | 8/10 | 4283 days | 5% |
| Luisa | 10/10 | 4288 days | 5% |
| Sohie | 10/10 | 4288 days | 5% |
| Nigel Leighton | 10/10 | 4361 days | 1% |
| Jonathan Vondette | 9/10 | 4364 days | 0% |
| D Pieter | 6/10 | 4371 days | 0% |
| Anne Sutkowi | 10/10 | 4373 days | 0% |
| Karsten Meyer | 8/10 | 4388 days | 28% |
| Green UK | 9/10 | 4629 days | 28% |
| Michael Neumann | 9/10 | 4635 days | 28% |
| jackson78 | 10/10 | 4708 days | 28% |
| C | 10/10 | 4708 days | 28% |
| Extremo | 10/10 | 4739 days | 28% |
| Allan Johnston | 10/10 | 4800 days | 28% |
| Jorge Martinez Gacio | 8/10 | 4994 days | 28% |
| Boi Sagarra | 7/10 | 4997 days | 26% |
| Margit and Corein Groenevelt | 8/10 | 5000 days | 28% |
| Mulder & vanNistelrooij | 8/10 | 5005 days | 28% |
| Fabrizio Consolini | 8/10 | 5005 days | 28% |
| Estel la Prado | 10/10 | 5008 days | 28% |
| Susan Herd | 9/10 | 5009 days | 28% |
| Jessica Vogels | 9/10 | 5012 days | 28% |
| Emma Ducat | 10/10 | 5014 days | 28% |
| Melanie Gruber | 10/10 | 5015 days | 28% |
| Lukis Haertel | 9/10 | 5039 days | 28% |
| ccthornton100 | 9/10 | 5379 days | 28% |
| Nicky and Andy Prescott | 10/10 | 5381 days | 28% |
| David Morton | 8/10 | 5381 days | 28% |
| Thomas K | 9/10 | 5388 days | 28% |
| Belinda Godhard | 9/10 | 5404 days | 28% |
| Thomas Stopp | 9/10 | 5407 days | 28% |
| joannaw | 9/10 | 5454 days | 28% |
| Simon Slawner | 9/10 | 5471 days | 28% |
| Thorben Thede | 7/10 | 5481 days | 26% |
| anne p | 7/10 | 5492 days | 26% |
| eric14 | 8/10 | 5530 days | 28% |
| Sam819 | 10/10 | 5530 days | 28% |
| SandraThomas | 10/10 | 5530 days | 28% |
| MarielR | 8/10 | 5731 days | 28% |
| Donna | 10/10 | 5739 days | 28% |
| Sam Marshall | 7/10 | 5741 days | 26% |
| Peter | 9/10 | 5762 days | 28% |
| Hans | 8/10 | 5762 days | 28% |
| ali_m | 10/10 | 5782 days | 28% |
| Emily | 10/10 | 5821 days | 28% |
| Tom | 10/10 | 5830 days | 28% |
| Aoife | 9/10 | 5888 days | 28% |
| Shannon | 5/10 | 5962 days | 21% |
| Martin | 9/10 | 5981 days | 28% |
| Eric Campbell | 10/10 | 6000 days | 28% |
| Corin Kraft | 10/10 | 6055 days | 28% |
| hobl | 10/10 | 6063 days | 28% |
| cyntha rams | 10/10 | 6088 days | 28% |
| Katy Bray | 9/10 | 6093 days | 28% |
| Vicki | 9/10 | 6111 days | 28% |
| Walter | 9/10 | 6127 days | 28% |
| Sabine | 10/10 | 6127 days | 28% |
| Dupre | 8/10 | 6182 days | 28% |
| Kate and Dave | 10/10 | 6315 days | 28% |
| Susan | 9/10 | 6463 days | 28% |
| Peter | 8/10 | 6483 days | 28% |
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
-4.05% Adjustment
There may be an adjustment if this experience hasn't received any reviews within the last 43 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 | -3.99% |
| 198 | -4.01% |
| 199 | -4.03% |
| 200 | -4.05% |
| 201 | -4.07% |
| 202 | -4.09% |
| 203 | -4.11% |
| … | … |
Balancing Adjustment
1.39% 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.