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
91.32%
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 | 3125 days | 100% |
| Mark Ashmore | 10/10 | 3341 days | 80% |
| Tim Struessmann | 7/10 | 3358 days | 71% |
| Fran and Ben | 10/10 | 3374 days | 77% |
| Alex Hah | 9/10 | 3400 days | 73% |
| Matthew | 8/10 | 3410 days | 71% |
| Stefania Colla | 10/10 | 3418 days | 72% |
| Rick Semo | 10/10 | 3418 days | 72% |
| Jessica Freeland | 9/10 | 3435 days | 70% |
| Ane Pujol | 10/10 | 3439 days | 71% |
| Nicole Joersen | 9/10 | 3457 days | 68% |
| Matthus Groem | 9/10 | 3457 days | 68% |
| Kristin Pogue | 10/10 | 3696 days | 46% |
| Molly Bogeberg | 9/10 | 3718 days | 44% |
| Hugo Alfonso | 10/10 | 3724 days | 44% |
| Bill Priddy | 10/10 | 3724 days | 44% |
| Stephen Ophelder | 10/10 | 3724 days | 44% |
| Horitz | 10/10 | 3737 days | 43% |
| Lindsay Dell | 9/10 | 3747 days | 41% |
| Florian Bellark | 9/10 | 3749 days | 41% |
| Gonne Clasen | 7/10 | 3767 days | 36% |
| Gregory | 9/10 | 3770 days | 39% |
| Maxime Louis | 10/10 | 3774 days | 39% |
| dror cohen | 10/10 | 3784 days | 38% |
| Ludo and Cha | 8/10 | 3809 days | 35% |
| Graham Lighner | 9/10 | 3825 days | 34% |
| Iris Gigacher | 9/10 | 3843 days | 32% |
| Jennifer Brown | 10/10 | 3845 days | 32% |
| Emma | 10/10 | 4090 days | 9% |
| Jam Boggomann | 7/10 | 4176 days | 0% |
| Claudia de Winter | 8/10 | 4426 days | 29% |
| Brian Lexmond | 6/10 | 4427 days | 23% |
| Simeon W | 9/10 | 4437 days | 30% |
| Daniel Robledo | 9/10 | 4456 days | 30% |
| Maria Camen Santos Lopez | 9/10 | 4456 days | 30% |
| Maria = Moller Hansen | 10/10 | 4466 days | 30% |
| Bjorn Houlberg | 10/10 | 4466 days | 30% |
| Michael Uebe | 8/10 | 4486 days | 29% |
| Daniel McAlpine | 10/10 | 4519 days | 30% |
| Kellie | 10/10 | 4519 days | 30% |
| Fjord | 10/10 | 4804 days | 30% |
| Maria Klister | 10/10 | 4804 days | 30% |
| Friederike | 10/10 | 4804 days | 30% |
| Raelene Vine | 10/10 | 4820 days | 30% |
| Jeremy Eng | 8/10 | 4820 days | 29% |
| Luisa | 10/10 | 4825 days | 30% |
| Sohie | 10/10 | 4825 days | 30% |
| Nigel Leighton | 10/10 | 4898 days | 30% |
| Jonathan Vondette | 9/10 | 4901 days | 30% |
| D Pieter | 6/10 | 4908 days | 23% |
| Anne Sutkowi | 10/10 | 4910 days | 30% |
| Karsten Meyer | 8/10 | 4925 days | 29% |
| Green UK | 9/10 | 5166 days | 30% |
| Michael Neumann | 9/10 | 5172 days | 30% |
| jackson78 | 10/10 | 5245 days | 30% |
| C | 10/10 | 5245 days | 30% |
| Extremo | 10/10 | 5276 days | 30% |
| Allan Johnston | 10/10 | 5337 days | 30% |
| Jorge Martinez Gacio | 8/10 | 5531 days | 29% |
| Boi Sagarra | 7/10 | 5534 days | 27% |
| Margit and Corein Groenevelt | 8/10 | 5537 days | 29% |
| Mulder & vanNistelrooij | 8/10 | 5542 days | 29% |
| Fabrizio Consolini | 8/10 | 5542 days | 29% |
| Estel la Prado | 10/10 | 5545 days | 30% |
| Susan Herd | 9/10 | 5546 days | 30% |
| Jessica Vogels | 9/10 | 5549 days | 30% |
| Emma Ducat | 10/10 | 5551 days | 30% |
| Melanie Gruber | 10/10 | 5552 days | 30% |
| Lukis Haertel | 9/10 | 5576 days | 30% |
| ccthornton100 | 9/10 | 5916 days | 30% |
| Nicky and Andy Prescott | 10/10 | 5918 days | 30% |
| David Morton | 8/10 | 5918 days | 29% |
| Thomas K | 9/10 | 5925 days | 30% |
| Belinda Godhard | 9/10 | 5941 days | 30% |
| Thomas Stopp | 9/10 | 5944 days | 30% |
| joannaw | 9/10 | 5991 days | 30% |
| Simon Slawner | 9/10 | 6008 days | 30% |
| Thorben Thede | 7/10 | 6018 days | 27% |
| anne p | 7/10 | 6029 days | 27% |
| eric14 | 8/10 | 6067 days | 29% |
| Sam819 | 10/10 | 6067 days | 30% |
| SandraThomas | 10/10 | 6067 days | 30% |
| MarielR | 8/10 | 6268 days | 29% |
| Donna | 10/10 | 6276 days | 30% |
| Sam Marshall | 7/10 | 6278 days | 27% |
| Peter | 9/10 | 6299 days | 30% |
| Hans | 8/10 | 6299 days | 29% |
| ali_m | 10/10 | 6319 days | 30% |
| Emily | 10/10 | 6358 days | 30% |
| Tom | 10/10 | 6367 days | 30% |
| Aoife | 9/10 | 6425 days | 30% |
| Shannon | 5/10 | 6499 days | 19% |
| Martin | 9/10 | 6518 days | 30% |
| Eric Campbell | 10/10 | 6537 days | 30% |
| Corin Kraft | 10/10 | 6592 days | 30% |
| hobl | 10/10 | 6600 days | 30% |
| cyntha rams | 10/10 | 6625 days | 30% |
| Katy Bray | 9/10 | 6630 days | 30% |
| Vicki | 9/10 | 6648 days | 30% |
| Walter | 9/10 | 6664 days | 30% |
| Sabine | 10/10 | 6664 days | 30% |
| Dupre | 8/10 | 6719 days | 29% |
| Kate and Dave | 10/10 | 6852 days | 30% |
| Susan | 9/10 | 7000 days | 30% |
| Peter | 8/10 | 7020 days | 29% |
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
-2.87% Adjustment
There may be an adjustment if this experience hasn't received any reviews within the last 88 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 | -2.82% |
| 198 | -2.84% |
| 199 | -2.85% |
| 200 | -2.87% |
| 201 | -2.88% |
| 202 | -2.90% |
| 203 | -2.91% |
| … | … |
Balancing Adjustment
1.22% 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.