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 Wairau Diversion Reserve.
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.
Wairau Diversion Reserve
Valid Reviews
78 Valid Reviews
The Wairau Diversion Reserve experience has a total of 94 reviews. There are 78 valid reviews that are included when calculating the ranking score and 16 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 78 valid reviews:
| Rating | Count | Percentage | |
|---|---|---|---|
| 10/10 | 26 |
|
33% |
| 9/10 | 18 |
|
23% |
| 8/10 | 21 |
|
27% |
| 7/10 | 7 |
|
9% |
| 6/10 | 3 |
|
4% |
| 5/10 | 1 |
|
1% |
| 4/10 | 0 |
|
0% |
| 3/10 | 1 |
|
1% |
| 2/10 | 1 |
|
1% |
| 1/10 | 0 |
|
0% |
85.51% Average
The raw data average (mean) for all the Wairau Diversion Reserve valid reviews is 85.51% and is based on 78 valid reviews. This value is not used to calculate the ranking score and it only provided here as a comparison to the weighted average.
Weighted Average
84.84%
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 |
|---|---|---|---|
| Shan | 10/10 | 34 days | 100% |
| Ben | 6/10 | 34 days | 86% |
| Vera | 7/10 | 65 days | 93% |
| Charlie | 8/10 | 248 days | 95% |
| Mindy | 8/10 | 279 days | 94% |
| Lena | 10/10 | 369 days | 92% |
| Ellie | 10/10 | 369 days | 92% |
| Cucamest | 8/10 | 430 days | 88% |
| Len Cons | 8/10 | 491 days | 85% |
| Matt | 10/10 | 522 days | 85% |
| BonnieBE | 7/10 | 1130 days | 30% |
| Dana | 10/10 | 1253 days | 24% |
| Cymen Crick | 7/10 | 1465 days | 12% |
| Alicia | 7/10 | 1465 days | 12% |
| EvaBelle | 9/10 | 1465 days | 12% |
| Marianne | 2/10 | 1465 days | 6% |
| Vanessa | 8/10 | 1679 days | 6% |
| Adventure B4 Dementia | 7/10 | 1740 days | 5% |
| Valg | 7/10 | 1740 days | 5% |
| La Vie | 10/10 | 1740 days | 5% |
| Felix | 8/10 | 1799 days | 5% |
| Susan | 9/10 | 1799 days | 5% |
| Liv | 9/10 | 1799 days | 5% |
| Shalamar | 8/10 | 1830 days | 5% |
| Tammy & Nigel | 10/10 | 1860 days | 5% |
| Kevin and Dorothy | 8/10 | 1891 days | 5% |
| Shar-ron & Jim | 8/10 | 1921 days | 5% |
| Shans | 8/10 | 2013 days | 4% |
| Jack Moxon | 9/10 | 2105 days | 4% |
| Cody | 9/10 | 2105 days | 4% |
| Gini | 8/10 | 2105 days | 4% |
| Salkinnoma | 9/10 | 2165 days | 4% |
| Richard & Chris, UK | 9/10 | 2165 days | 4% |
| A smith | 10/10 | 2196 days | 4% |
| Mark | 10/10 | 2196 days | 4% |
| Dennis Rijbroek | 6/10 | 2287 days | 3% |
| Michael | 3/10 | 2410 days | 2% |
| Rick’d | 10/10 | 2440 days | 4% |
| Emma & Tom | 9/10 | 2440 days | 4% |
| Georgia | 8/10 | 2471 days | 4% |
| Hope | 8/10 | 2499 days | 4% |
| Aisling | 9/10 | 2499 days | 4% |
| Ceri | 10/10 | 2499 days | 4% |
| Gareth Jones | 8/10 | 2499 days | 4% |
| Glen Marshall UK | 10/10 | 2499 days | 4% |
| Dan | 9/10 | 2530 days | 4% |
| Marinette Kegels | 5/10 | 2530 days | 3% |
| Flatlanders | 9/10 | 2530 days | 4% |
| Martin | 10/10 | 2561 days | 4% |
| Sian | 10/10 | 2561 days | 4% |
| Ymke Huisman | 9/10 | 2561 days | 3% |
| Maëlle Salmon | 9/10 | 2561 days | 3% |
| Angela | 8/10 | 2622 days | 3% |
| Axel | 9/10 | 2622 days | 3% |
| N&V | 8/10 | 2622 days | 3% |
| Mischa | 10/10 | 2622 days | 3% |
| Lilith Prins | 10/10 | 2906 days | 3% |
| Lucie B | 6/10 | 3156 days | 2% |
| Tracey Leyston | 10/10 | 3211 days | 2% |
| Florence Boinay | 10/10 | 3236 days | 2% |
| Katie Ball | 10/10 | 3262 days | 2% |
| Vanessa Moutic | 10/10 | 3314 days | 2% |
| Mathieu Quintard | 10/10 | 3336 days | 2% |
| Jessica Stokes | 7/10 | 3435 days | 2% |
| Jessica Powell | 10/10 | 3457 days | 2% |
| Michael Quinn | 10/10 | 3493 days | 2% |
| renee verwey | 10/10 | 3589 days | 2% |
| Zdenda Barvinek | 8/10 | 3618 days | 1% |
| Jean-Michel Sautter | 8/10 | 3622 days | 1% |
| Ana Guimaraes | 8/10 | 3666 days | 1% |
| leo lionheart | 10/10 | 3780 days | 1% |
| Yann Le Gac | 9/10 | 3871 days | 1% |
| Ian | 9/10 | 3961 days | 1% |
| David Cowling | 8/10 | 4041 days | 1% |
| kim | 10/10 | 4113 days | 0% |
| Mike Fricker | 8/10 | 4266 days | 0% |
| Cymen Crick | 9/10 | 4356 days | 0% |
| Mary Carter | 9/10 | 4509 days | 1% |
Adjustments
No Adjustment
Several adjustments to the weighted average may be added to improve relevancy and credibility. Wairau Diversion Reserve does not meet the criteria for any of these adjustments to apply.
Balancing Adjustment
1.85% 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 folk 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
87%
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.