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
75 Valid Reviews
The Wairau Diversion Reserve experience has a total of 91 reviews. There are 75 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 75 valid reviews:
| Rating | Count | Percentage | |
|---|---|---|---|
| 10/10 | 25 |
|
33% |
| 9/10 | 18 |
|
24% |
| 8/10 | 21 |
|
28% |
| 7/10 | 6 |
|
8% |
| 6/10 | 2 |
|
3% |
| 5/10 | 1 |
|
1% |
| 4/10 | 0 |
|
0% |
| 3/10 | 1 |
|
1% |
| 2/10 | 1 |
|
1% |
| 1/10 | 0 |
|
0% |
85.87% Average
The raw data average (mean) for all the Wairau Diversion Reserve valid reviews is 85.87% and is based on 75 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
86.60%
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 |
|---|---|---|---|
| Charlie | 8/10 | 108 days | 100% |
| Mindy | 8/10 | 139 days | 100% |
| Lena | 10/10 | 229 days | 100% |
| Ellie | 10/10 | 229 days | 100% |
| Cucamest | 8/10 | 290 days | 96% |
| Len Cons | 8/10 | 351 days | 94% |
| Matt | 10/10 | 382 days | 94% |
| BonnieBE | 7/10 | 990 days | 43% |
| Dana | 10/10 | 1113 days | 35% |
| Cymen Crick | 7/10 | 1324 days | 18% |
| Alicia | 7/10 | 1325 days | 18% |
| EvaBelle | 9/10 | 1325 days | 20% |
| Marianne | 2/10 | 1325 days | 9% |
| Vanessa | 8/10 | 1539 days | 10% |
| Adventure B4 Dementia | 7/10 | 1600 days | 8% |
| Valg | 7/10 | 1600 days | 8% |
| La Vie | 10/10 | 1600 days | 8% |
| Felix | 8/10 | 1659 days | 7% |
| Susan | 9/10 | 1659 days | 7% |
| Liv | 9/10 | 1659 days | 7% |
| Shalamar | 8/10 | 1690 days | 6% |
| Tammy & Nigel | 10/10 | 1720 days | 6% |
| Kevin and Dorothy | 8/10 | 1751 days | 5% |
| Shar-ron & Jim | 8/10 | 1781 days | 5% |
| Shans | 8/10 | 1873 days | 5% |
| Jack Moxon | 9/10 | 1965 days | 5% |
| Cody | 9/10 | 1965 days | 5% |
| Gini | 8/10 | 1965 days | 5% |
| Salkinnoma | 9/10 | 2025 days | 5% |
| Richard & Chris, UK | 9/10 | 2025 days | 5% |
| A smith | 10/10 | 2056 days | 5% |
| Mark | 10/10 | 2056 days | 5% |
| Dennis Rijbroek | 6/10 | 2147 days | 4% |
| Michael | 3/10 | 2270 days | 2% |
| Rick’d | 10/10 | 2300 days | 4% |
| Emma & Tom | 9/10 | 2300 days | 4% |
| Georgia | 8/10 | 2331 days | 4% |
| Hope | 8/10 | 2359 days | 4% |
| Aisling | 9/10 | 2359 days | 4% |
| Ceri | 10/10 | 2359 days | 4% |
| Gareth Jones | 8/10 | 2359 days | 4% |
| Glen Marshall UK | 10/10 | 2359 days | 4% |
| Dan | 9/10 | 2390 days | 4% |
| Marinette Kegels | 5/10 | 2390 days | 3% |
| Flatlanders | 9/10 | 2390 days | 4% |
| Martin | 10/10 | 2421 days | 4% |
| Sian | 10/10 | 2421 days | 4% |
| Ymke Huisman | 9/10 | 2421 days | 4% |
| Maëlle Salmon | 9/10 | 2421 days | 4% |
| Angela | 8/10 | 2482 days | 4% |
| Axel | 9/10 | 2482 days | 4% |
| N&V | 8/10 | 2482 days | 4% |
| Mischa | 10/10 | 2482 days | 4% |
| Lilith Prins | 10/10 | 2766 days | 3% |
| Lucie B | 6/10 | 3016 days | 2% |
| Tracey Leyston | 10/10 | 3071 days | 3% |
| Florence Boinay | 10/10 | 3096 days | 3% |
| Katie Ball | 10/10 | 3122 days | 3% |
| Vanessa Moutic | 10/10 | 3174 days | 2% |
| Mathieu Quintard | 10/10 | 3196 days | 2% |
| Jessica Stokes | 7/10 | 3295 days | 2% |
| Jessica Powell | 10/10 | 3317 days | 2% |
| Michael Quinn | 10/10 | 3353 days | 2% |
| renee verwey | 10/10 | 3449 days | 2% |
| Zdenda Barvinek | 8/10 | 3478 days | 2% |
| Jean-Michel Sautter | 8/10 | 3482 days | 2% |
| Ana Guimaraes | 8/10 | 3526 days | 2% |
| leo lionheart | 10/10 | 3640 days | 1% |
| Yann Le Gac | 9/10 | 3730 days | 1% |
| Ian | 9/10 | 3821 days | 1% |
| David Cowling | 8/10 | 3901 days | 1% |
| kim | 10/10 | 3972 days | 1% |
| Mike Fricker | 8/10 | 4126 days | 0% |
| Cymen Crick | 9/10 | 4216 days | 0% |
| Mary Carter | 9/10 | 4369 days | 0% |
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
1.53% 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
88%
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.