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
91.71%
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 | 3043 days | 100% |
| Mark Ashmore | 10/10 | 3259 days | 84% |
| Tim Struessmann | 7/10 | 3276 days | 77% |
| Fran and Ben | 10/10 | 3292 days | 81% |
| Alex Hah | 9/10 | 3318 days | 79% |
| Matthew | 8/10 | 3328 days | 77% |
| Stefania Colla | 10/10 | 3336 days | 78% |
| Rick Semo | 10/10 | 3336 days | 78% |
| Jessica Freeland | 9/10 | 3353 days | 76% |
| Ane Pujol | 10/10 | 3357 days | 76% |
| Nicole Joersen | 9/10 | 3375 days | 74% |
| Matthus Groem | 9/10 | 3375 days | 74% |
| Kristin Pogue | 10/10 | 3614 days | 57% |
| Molly Bogeberg | 9/10 | 3636 days | 55% |
| Hugo Alfonso | 10/10 | 3642 days | 55% |
| Bill Priddy | 10/10 | 3642 days | 55% |
| Stephen Ophelder | 10/10 | 3642 days | 55% |
| Horitz | 10/10 | 3655 days | 54% |
| Lindsay Dell | 9/10 | 3665 days | 53% |
| Florian Bellark | 9/10 | 3667 days | 53% |
| Gonne Clasen | 7/10 | 3685 days | 48% |
| Gregory | 9/10 | 3688 days | 51% |
| Maxime Louis | 10/10 | 3692 days | 51% |
| dror cohen | 10/10 | 3702 days | 50% |
| Ludo and Cha | 8/10 | 3727 days | 48% |
| Graham Lighner | 9/10 | 3743 days | 47% |
| Iris Gigacher | 9/10 | 3761 days | 46% |
| Jennifer Brown | 10/10 | 3763 days | 46% |
| Emma | 10/10 | 4008 days | 28% |
| Jam Boggomann | 7/10 | 4094 days | 20% |
| Claudia de Winter | 8/10 | 4344 days | 2% |
| Brian Lexmond | 6/10 | 4345 days | 2% |
| Simeon W | 9/10 | 4355 days | 1% |
| Daniel Robledo | 9/10 | 4374 days | 0% |
| Maria Camen Santos Lopez | 9/10 | 4374 days | 0% |
| Maria = Moller Hansen | 10/10 | 4384 days | 38% |
| Bjorn Houlberg | 10/10 | 4384 days | 38% |
| Michael Uebe | 8/10 | 4404 days | 37% |
| Daniel McAlpine | 10/10 | 4437 days | 38% |
| Kellie | 10/10 | 4437 days | 38% |
| Fjord | 10/10 | 4722 days | 38% |
| Maria Klister | 10/10 | 4722 days | 38% |
| Friederike | 10/10 | 4722 days | 38% |
| Raelene Vine | 10/10 | 4738 days | 38% |
| Jeremy Eng | 8/10 | 4738 days | 37% |
| Luisa | 10/10 | 4743 days | 38% |
| Sohie | 10/10 | 4743 days | 38% |
| Nigel Leighton | 10/10 | 4816 days | 38% |
| Jonathan Vondette | 9/10 | 4819 days | 38% |
| D Pieter | 6/10 | 4826 days | 33% |
| Anne Sutkowi | 10/10 | 4828 days | 38% |
| Karsten Meyer | 8/10 | 4843 days | 37% |
| Green UK | 9/10 | 5084 days | 38% |
| Michael Neumann | 9/10 | 5090 days | 38% |
| jackson78 | 10/10 | 5163 days | 38% |
| C | 10/10 | 5163 days | 38% |
| Extremo | 10/10 | 5194 days | 38% |
| Allan Johnston | 10/10 | 5255 days | 38% |
| Jorge Martinez Gacio | 8/10 | 5449 days | 37% |
| Boi Sagarra | 7/10 | 5452 days | 35% |
| Margit and Corein Groenevelt | 8/10 | 5455 days | 37% |
| Mulder & vanNistelrooij | 8/10 | 5460 days | 37% |
| Fabrizio Consolini | 8/10 | 5460 days | 37% |
| Estel la Prado | 10/10 | 5463 days | 38% |
| Susan Herd | 9/10 | 5464 days | 38% |
| Jessica Vogels | 9/10 | 5467 days | 38% |
| Emma Ducat | 10/10 | 5469 days | 38% |
| Melanie Gruber | 10/10 | 5470 days | 38% |
| Lukis Haertel | 9/10 | 5494 days | 38% |
| ccthornton100 | 9/10 | 5834 days | 38% |
| Nicky and Andy Prescott | 10/10 | 5836 days | 38% |
| David Morton | 8/10 | 5836 days | 37% |
| Thomas K | 9/10 | 5843 days | 38% |
| Belinda Godhard | 9/10 | 5859 days | 38% |
| Thomas Stopp | 9/10 | 5862 days | 38% |
| joannaw | 9/10 | 5909 days | 38% |
| Simon Slawner | 9/10 | 5926 days | 38% |
| Thorben Thede | 7/10 | 5936 days | 35% |
| anne p | 7/10 | 5947 days | 35% |
| eric14 | 8/10 | 5985 days | 37% |
| Sam819 | 10/10 | 5985 days | 38% |
| SandraThomas | 10/10 | 5985 days | 38% |
| MarielR | 8/10 | 6186 days | 37% |
| Donna | 10/10 | 6193 days | 38% |
| Sam Marshall | 7/10 | 6196 days | 35% |
| Peter | 9/10 | 6216 days | 38% |
| Hans | 8/10 | 6216 days | 37% |
| ali_m | 10/10 | 6237 days | 38% |
| Emily | 10/10 | 6276 days | 38% |
| Tom | 10/10 | 6285 days | 38% |
| Aoife | 9/10 | 6343 days | 38% |
| Shannon | 5/10 | 6416 days | 29% |
| Martin | 9/10 | 6435 days | 38% |
| Eric Campbell | 10/10 | 6455 days | 38% |
| Corin Kraft | 10/10 | 6510 days | 38% |
| hobl | 10/10 | 6518 days | 38% |
| cyntha rams | 10/10 | 6542 days | 38% |
| Katy Bray | 9/10 | 6548 days | 38% |
| Vicki | 9/10 | 6566 days | 38% |
| Walter | 9/10 | 6582 days | 38% |
| Sabine | 10/10 | 6582 days | 38% |
| Dupre | 8/10 | 6637 days | 37% |
| Kate and Dave | 10/10 | 6770 days | 38% |
| Susan | 9/10 | 6918 days | 38% |
| Peter | 8/10 | 6938 days | 37% |
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
-4.15% Adjustment
There may be an adjustment if this experience hasn't received any reviews within the last 53 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 | -4.08% |
| 198 | -4.10% |
| 199 | -4.13% |
| 200 | -4.15% |
| 201 | -4.17% |
| 202 | -4.19% |
| 203 | -4.21% |
| … | … |
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.