Hi, 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
91.67%
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 | 3069 days | 100% |
| Mark Ashmore | 10/10 | 3285 days | 83% |
| Tim Struessmann | 7/10 | 3302 days | 76% |
| Fran and Ben | 10/10 | 3318 days | 81% |
| Alex Hah | 9/10 | 3344 days | 78% |
| Matthew | 8/10 | 3354 days | 77% |
| Stefania Colla | 10/10 | 3361 days | 78% |
| Rick Semo | 10/10 | 3361 days | 78% |
| Jessica Freeland | 9/10 | 3379 days | 75% |
| Ane Pujol | 10/10 | 3383 days | 76% |
| Nicole Joersen | 9/10 | 3401 days | 74% |
| Matthus Groem | 9/10 | 3401 days | 74% |
| Kristin Pogue | 10/10 | 3640 days | 56% |
| Molly Bogeberg | 9/10 | 3662 days | 54% |
| Hugo Alfonso | 10/10 | 3667 days | 54% |
| Bill Priddy | 10/10 | 3667 days | 54% |
| Stephen Ophelder | 10/10 | 3668 days | 54% |
| Horitz | 10/10 | 3681 days | 53% |
| Lindsay Dell | 9/10 | 3691 days | 52% |
| Florian Bellark | 9/10 | 3693 days | 52% |
| Gonne Clasen | 7/10 | 3711 days | 47% |
| Gregory | 9/10 | 3714 days | 50% |
| Maxime Louis | 10/10 | 3718 days | 50% |
| dror cohen | 10/10 | 3728 days | 49% |
| Ludo and Cha | 8/10 | 3753 days | 47% |
| Graham Lighner | 9/10 | 3769 days | 46% |
| Iris Gigacher | 9/10 | 3787 days | 44% |
| Jennifer Brown | 10/10 | 3788 days | 45% |
| Emma | 10/10 | 4033 days | 26% |
| Jam Boggomann | 7/10 | 4120 days | 18% |
| Claudia de Winter | 8/10 | 4370 days | 0% |
| Brian Lexmond | 6/10 | 4371 days | 0% |
| Simeon W | 9/10 | 4381 days | 38% |
| Daniel Robledo | 9/10 | 4400 days | 38% |
| Maria Camen Santos Lopez | 9/10 | 4400 days | 38% |
| Maria = Moller Hansen | 10/10 | 4410 days | 39% |
| Bjorn Houlberg | 10/10 | 4410 days | 39% |
| Michael Uebe | 8/10 | 4430 days | 38% |
| Daniel McAlpine | 10/10 | 4463 days | 39% |
| Kellie | 10/10 | 4463 days | 39% |
| Fjord | 10/10 | 4748 days | 39% |
| Maria Klister | 10/10 | 4748 days | 39% |
| Friederike | 10/10 | 4748 days | 39% |
| Raelene Vine | 10/10 | 4764 days | 39% |
| Jeremy Eng | 8/10 | 4764 days | 38% |
| Luisa | 10/10 | 4769 days | 39% |
| Sohie | 10/10 | 4769 days | 39% |
| Nigel Leighton | 10/10 | 4842 days | 39% |
| Jonathan Vondette | 9/10 | 4845 days | 38% |
| D Pieter | 6/10 | 4852 days | 33% |
| Anne Sutkowi | 10/10 | 4854 days | 39% |
| Karsten Meyer | 8/10 | 4869 days | 38% |
| Green UK | 9/10 | 5110 days | 38% |
| Michael Neumann | 9/10 | 5116 days | 38% |
| jackson78 | 10/10 | 5189 days | 39% |
| C | 10/10 | 5189 days | 39% |
| Extremo | 10/10 | 5220 days | 39% |
| Allan Johnston | 10/10 | 5281 days | 39% |
| Jorge Martinez Gacio | 8/10 | 5475 days | 38% |
| Boi Sagarra | 7/10 | 5478 days | 36% |
| Margit and Corein Groenevelt | 8/10 | 5481 days | 38% |
| Mulder & vanNistelrooij | 8/10 | 5486 days | 38% |
| Fabrizio Consolini | 8/10 | 5486 days | 38% |
| Estel la Prado | 10/10 | 5489 days | 39% |
| Susan Herd | 9/10 | 5490 days | 38% |
| Jessica Vogels | 9/10 | 5493 days | 38% |
| Emma Ducat | 10/10 | 5495 days | 39% |
| Melanie Gruber | 10/10 | 5496 days | 39% |
| Lukis Haertel | 9/10 | 5520 days | 38% |
| ccthornton100 | 9/10 | 5860 days | 38% |
| Nicky and Andy Prescott | 10/10 | 5862 days | 39% |
| David Morton | 8/10 | 5862 days | 38% |
| Thomas K | 9/10 | 5869 days | 38% |
| Belinda Godhard | 9/10 | 5885 days | 38% |
| Thomas Stopp | 9/10 | 5888 days | 38% |
| joannaw | 9/10 | 5935 days | 38% |
| Simon Slawner | 9/10 | 5952 days | 38% |
| Thorben Thede | 7/10 | 5962 days | 36% |
| anne p | 7/10 | 5973 days | 36% |
| eric14 | 8/10 | 6011 days | 38% |
| Sam819 | 10/10 | 6011 days | 39% |
| SandraThomas | 10/10 | 6011 days | 39% |
| MarielR | 8/10 | 6212 days | 38% |
| Donna | 10/10 | 6219 days | 39% |
| Sam Marshall | 7/10 | 6222 days | 36% |
| Peter | 9/10 | 6242 days | 38% |
| Hans | 8/10 | 6242 days | 38% |
| ali_m | 10/10 | 6263 days | 39% |
| Emily | 10/10 | 6301 days | 39% |
| Tom | 10/10 | 6310 days | 39% |
| Aoife | 9/10 | 6368 days | 38% |
| Shannon | 5/10 | 6442 days | 29% |
| Martin | 9/10 | 6461 days | 38% |
| Eric Campbell | 10/10 | 6481 days | 39% |
| Corin Kraft | 10/10 | 6536 days | 39% |
| hobl | 10/10 | 6543 days | 39% |
| cyntha rams | 10/10 | 6568 days | 39% |
| Katy Bray | 9/10 | 6574 days | 38% |
| Vicki | 9/10 | 6592 days | 38% |
| Walter | 9/10 | 6608 days | 38% |
| Sabine | 10/10 | 6608 days | 39% |
| Dupre | 8/10 | 6663 days | 38% |
| Kate and Dave | 10/10 | 6796 days | 39% |
| Susan | 9/10 | 6944 days | 38% |
| Peter | 8/10 | 6964 days | 38% |
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
-3.96% Adjustment
There may be an adjustment if this experience hasn't received any reviews within the last 57 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 | -3.91% |
| 198 | -3.93% |
| 199 | -3.95% |
| 200 | -3.96% |
| 201 | -3.98% |
| 202 | -4.00% |
| 203 | -4.02% |
| … | … |
Balancing Adjustment
1.34% 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.