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
91.66%
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 | 3008 days | 100% |
| Mark Ashmore | 10/10 | 3224 days | 84% |
| Tim Struessmann | 7/10 | 3241 days | 77% |
| Fran and Ben | 10/10 | 3257 days | 82% |
| Alex Hah | 9/10 | 3283 days | 79% |
| Matthew | 8/10 | 3293 days | 77% |
| Stefania Colla | 10/10 | 3300 days | 79% |
| Rick Semo | 10/10 | 3300 days | 79% |
| Jessica Freeland | 9/10 | 3318 days | 76% |
| Ane Pujol | 10/10 | 3322 days | 77% |
| Nicole Joersen | 9/10 | 3340 days | 75% |
| Matthus Groem | 9/10 | 3340 days | 75% |
| Kristin Pogue | 10/10 | 3579 days | 58% |
| Molly Bogeberg | 9/10 | 3601 days | 56% |
| Hugo Alfonso | 10/10 | 3606 days | 56% |
| Bill Priddy | 10/10 | 3606 days | 56% |
| Stephen Ophelder | 10/10 | 3607 days | 56% |
| Horitz | 10/10 | 3620 days | 55% |
| Lindsay Dell | 9/10 | 3630 days | 54% |
| Florian Bellark | 9/10 | 3632 days | 54% |
| Gonne Clasen | 7/10 | 3650 days | 49% |
| Gregory | 9/10 | 3653 days | 52% |
| Maxime Louis | 10/10 | 3657 days | 52% |
| dror cohen | 10/10 | 3667 days | 52% |
| Ludo and Cha | 8/10 | 3692 days | 49% |
| Graham Lighner | 9/10 | 3708 days | 48% |
| Iris Gigacher | 9/10 | 3726 days | 47% |
| Jennifer Brown | 10/10 | 3727 days | 47% |
| Emma | 10/10 | 3972 days | 29% |
| Jam Boggomann | 7/10 | 4059 days | 21% |
| Claudia de Winter | 8/10 | 4309 days | 4% |
| Brian Lexmond | 6/10 | 4310 days | 4% |
| Simeon W | 9/10 | 4320 days | 4% |
| Daniel Robledo | 9/10 | 4339 days | 2% |
| Maria Camen Santos Lopez | 9/10 | 4339 days | 2% |
| Maria = Moller Hansen | 10/10 | 4349 days | 1% |
| Bjorn Houlberg | 10/10 | 4349 days | 1% |
| Michael Uebe | 8/10 | 4369 days | 0% |
| Daniel McAlpine | 10/10 | 4402 days | 37% |
| Kellie | 10/10 | 4402 days | 37% |
| Fjord | 10/10 | 4687 days | 37% |
| Maria Klister | 10/10 | 4687 days | 37% |
| Friederike | 10/10 | 4687 days | 37% |
| Raelene Vine | 10/10 | 4703 days | 37% |
| Jeremy Eng | 8/10 | 4703 days | 36% |
| Luisa | 10/10 | 4708 days | 37% |
| Sohie | 10/10 | 4708 days | 37% |
| Nigel Leighton | 10/10 | 4781 days | 37% |
| Jonathan Vondette | 9/10 | 4784 days | 36% |
| D Pieter | 6/10 | 4791 days | 32% |
| Anne Sutkowi | 10/10 | 4793 days | 37% |
| Karsten Meyer | 8/10 | 4808 days | 36% |
| Green UK | 9/10 | 5049 days | 36% |
| Michael Neumann | 9/10 | 5055 days | 36% |
| jackson78 | 10/10 | 5128 days | 37% |
| C | 10/10 | 5128 days | 37% |
| Extremo | 10/10 | 5159 days | 37% |
| Allan Johnston | 10/10 | 5220 days | 37% |
| Jorge Martinez Gacio | 8/10 | 5414 days | 36% |
| Boi Sagarra | 7/10 | 5417 days | 34% |
| Margit and Corein Groenevelt | 8/10 | 5420 days | 36% |
| Mulder & vanNistelrooij | 8/10 | 5425 days | 36% |
| Fabrizio Consolini | 8/10 | 5425 days | 36% |
| Estel la Prado | 10/10 | 5428 days | 37% |
| Susan Herd | 9/10 | 5429 days | 36% |
| Jessica Vogels | 9/10 | 5432 days | 36% |
| Emma Ducat | 10/10 | 5434 days | 37% |
| Melanie Gruber | 10/10 | 5435 days | 37% |
| Lukis Haertel | 9/10 | 5459 days | 36% |
| ccthornton100 | 9/10 | 5799 days | 36% |
| Nicky and Andy Prescott | 10/10 | 5801 days | 37% |
| David Morton | 8/10 | 5801 days | 36% |
| Thomas K | 9/10 | 5808 days | 36% |
| Belinda Godhard | 9/10 | 5824 days | 36% |
| Thomas Stopp | 9/10 | 5827 days | 36% |
| joannaw | 9/10 | 5874 days | 36% |
| Simon Slawner | 9/10 | 5891 days | 36% |
| Thorben Thede | 7/10 | 5901 days | 34% |
| anne p | 7/10 | 5912 days | 34% |
| eric14 | 8/10 | 5950 days | 36% |
| Sam819 | 10/10 | 5950 days | 37% |
| SandraThomas | 10/10 | 5950 days | 37% |
| MarielR | 8/10 | 6151 days | 36% |
| Donna | 10/10 | 6158 days | 37% |
| Sam Marshall | 7/10 | 6161 days | 34% |
| Peter | 9/10 | 6181 days | 36% |
| Hans | 8/10 | 6181 days | 36% |
| ali_m | 10/10 | 6202 days | 37% |
| Emily | 10/10 | 6240 days | 37% |
| Tom | 10/10 | 6249 days | 37% |
| Aoife | 9/10 | 6307 days | 36% |
| Shannon | 5/10 | 6381 days | 28% |
| Martin | 9/10 | 6400 days | 36% |
| Eric Campbell | 10/10 | 6420 days | 37% |
| Corin Kraft | 10/10 | 6475 days | 37% |
| hobl | 10/10 | 6482 days | 37% |
| cyntha rams | 10/10 | 6507 days | 37% |
| Katy Bray | 9/10 | 6513 days | 36% |
| Vicki | 9/10 | 6531 days | 36% |
| Walter | 9/10 | 6547 days | 36% |
| Sabine | 10/10 | 6547 days | 37% |
| Dupre | 8/10 | 6602 days | 36% |
| Kate and Dave | 10/10 | 6735 days | 37% |
| Susan | 9/10 | 6883 days | 36% |
| Peter | 8/10 | 6903 days | 36% |
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
-4.08% Adjustment
There may be an adjustment if this experience hasn't received any reviews within the last 45 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 | -4.02% |
| 198 | -4.04% |
| 199 | -4.06% |
| 200 | -4.08% |
| 201 | -4.10% |
| 202 | -4.12% |
| 203 | -4.14% |
| … | … |
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.