G'day, 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
91.51%
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 | 2970 days | 100% |
| Mark Ashmore | 10/10 | 3186 days | 85% |
| Tim Struessmann | 7/10 | 3203 days | 77% |
| Fran and Ben | 10/10 | 3219 days | 82% |
| Alex Hah | 9/10 | 3245 days | 79% |
| Matthew | 8/10 | 3255 days | 78% |
| Stefania Colla | 10/10 | 3262 days | 79% |
| Rick Semo | 10/10 | 3262 days | 79% |
| Jessica Freeland | 9/10 | 3280 days | 77% |
| Ane Pujol | 10/10 | 3284 days | 77% |
| Nicole Joersen | 9/10 | 3302 days | 75% |
| Matthus Groem | 9/10 | 3302 days | 75% |
| Kristin Pogue | 10/10 | 3541 days | 59% |
| Molly Bogeberg | 9/10 | 3563 days | 57% |
| Hugo Alfonso | 10/10 | 3568 days | 57% |
| Bill Priddy | 10/10 | 3568 days | 57% |
| Stephen Ophelder | 10/10 | 3569 days | 57% |
| Horitz | 10/10 | 3582 days | 56% |
| Lindsay Dell | 9/10 | 3592 days | 55% |
| Florian Bellark | 9/10 | 3594 days | 55% |
| Gonne Clasen | 7/10 | 3612 days | 50% |
| Gregory | 9/10 | 3615 days | 53% |
| Maxime Louis | 10/10 | 3619 days | 53% |
| dror cohen | 10/10 | 3629 days | 53% |
| Ludo and Cha | 8/10 | 3654 days | 50% |
| Graham Lighner | 9/10 | 3670 days | 49% |
| Iris Gigacher | 9/10 | 3688 days | 48% |
| Jennifer Brown | 10/10 | 3689 days | 48% |
| Emma | 10/10 | 3934 days | 31% |
| Jam Boggomann | 7/10 | 4021 days | 23% |
| Claudia de Winter | 8/10 | 4271 days | 7% |
| Brian Lexmond | 6/10 | 4272 days | 6% |
| Simeon W | 9/10 | 4282 days | 6% |
| Daniel Robledo | 9/10 | 4301 days | 4% |
| Maria Camen Santos Lopez | 9/10 | 4301 days | 4% |
| Maria = Moller Hansen | 10/10 | 4311 days | 4% |
| Bjorn Houlberg | 10/10 | 4311 days | 4% |
| Michael Uebe | 8/10 | 4331 days | 2% |
| Daniel McAlpine | 10/10 | 4364 days | 0% |
| Kellie | 10/10 | 4364 days | 0% |
| Fjord | 10/10 | 4649 days | 36% |
| Maria Klister | 10/10 | 4649 days | 36% |
| Friederike | 10/10 | 4649 days | 36% |
| Raelene Vine | 10/10 | 4665 days | 36% |
| Jeremy Eng | 8/10 | 4665 days | 35% |
| Luisa | 10/10 | 4670 days | 36% |
| Sohie | 10/10 | 4670 days | 36% |
| Nigel Leighton | 10/10 | 4743 days | 36% |
| Jonathan Vondette | 9/10 | 4746 days | 35% |
| D Pieter | 6/10 | 4753 days | 30% |
| Anne Sutkowi | 10/10 | 4755 days | 36% |
| Karsten Meyer | 8/10 | 4770 days | 35% |
| Green UK | 9/10 | 5011 days | 35% |
| Michael Neumann | 9/10 | 5017 days | 35% |
| jackson78 | 10/10 | 5090 days | 36% |
| C | 10/10 | 5090 days | 36% |
| Extremo | 10/10 | 5121 days | 36% |
| Allan Johnston | 10/10 | 5182 days | 36% |
| Jorge Martinez Gacio | 8/10 | 5376 days | 35% |
| Boi Sagarra | 7/10 | 5379 days | 33% |
| Margit and Corein Groenevelt | 8/10 | 5382 days | 35% |
| Mulder & vanNistelrooij | 8/10 | 5387 days | 35% |
| Fabrizio Consolini | 8/10 | 5387 days | 35% |
| Estel la Prado | 10/10 | 5390 days | 36% |
| Susan Herd | 9/10 | 5391 days | 35% |
| Jessica Vogels | 9/10 | 5394 days | 35% |
| Emma Ducat | 10/10 | 5396 days | 36% |
| Melanie Gruber | 10/10 | 5397 days | 36% |
| Lukis Haertel | 9/10 | 5421 days | 35% |
| ccthornton100 | 9/10 | 5761 days | 35% |
| Nicky and Andy Prescott | 10/10 | 5763 days | 36% |
| David Morton | 8/10 | 5763 days | 35% |
| Thomas K | 9/10 | 5770 days | 35% |
| Belinda Godhard | 9/10 | 5786 days | 35% |
| Thomas Stopp | 9/10 | 5789 days | 35% |
| joannaw | 9/10 | 5836 days | 35% |
| Simon Slawner | 9/10 | 5853 days | 35% |
| Thorben Thede | 7/10 | 5863 days | 33% |
| anne p | 7/10 | 5874 days | 33% |
| eric14 | 8/10 | 5912 days | 35% |
| Sam819 | 10/10 | 5912 days | 36% |
| SandraThomas | 10/10 | 5912 days | 36% |
| MarielR | 8/10 | 6113 days | 35% |
| Donna | 10/10 | 6120 days | 36% |
| Sam Marshall | 7/10 | 6123 days | 33% |
| Peter | 9/10 | 6143 days | 35% |
| Hans | 8/10 | 6143 days | 35% |
| ali_m | 10/10 | 6163 days | 36% |
| Emily | 10/10 | 6202 days | 36% |
| Tom | 10/10 | 6211 days | 36% |
| Aoife | 9/10 | 6269 days | 35% |
| Shannon | 5/10 | 6343 days | 27% |
| Martin | 9/10 | 6362 days | 35% |
| Eric Campbell | 10/10 | 6382 days | 36% |
| Corin Kraft | 10/10 | 6437 days | 36% |
| hobl | 10/10 | 6444 days | 36% |
| cyntha rams | 10/10 | 6469 days | 36% |
| Katy Bray | 9/10 | 6475 days | 35% |
| Vicki | 9/10 | 6493 days | 35% |
| Walter | 9/10 | 6509 days | 35% |
| Sabine | 10/10 | 6509 days | 36% |
| Dupre | 8/10 | 6564 days | 35% |
| Kate and Dave | 10/10 | 6697 days | 36% |
| Susan | 9/10 | 6845 days | 35% |
| Peter | 8/10 | 6865 days | 35% |
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
-4.07% Adjustment
There may be an adjustment if this experience hasn't received any reviews within the last 42 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 | -4.01% |
| 198 | -4.03% |
| 199 | -4.05% |
| 200 | -4.07% |
| 201 | -4.09% |
| 202 | -4.11% |
| 203 | -4.13% |
| … | … |
Balancing Adjustment
1.38% 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.