Hey, 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
72 Valid Reviews
The Wairau Diversion Reserve experience has a total of 86 reviews. There are 72 valid reviews that are included when calculating the ranking score and 14 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 72 valid reviews:
| Rating | Count | Percentage | |
|---|---|---|---|
| 10/10 | 23 |
|
32% |
| 9/10 | 18 |
|
25% |
| 8/10 | 20 |
|
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% |
85.56% Average
The raw data average (mean) for all the Wairau Diversion Reserve valid reviews is 85.56% and is based on 72 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
83.30%
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 |
|---|---|---|---|
| rae | 8/10 | 21 days | 99% |
| Cucamest | 8/10 | 52 days | 99% |
| Len Cons | 8/10 | 113 days | 98% |
| Matt | 10/10 | 144 days | 100% |
| BonnieBE | 7/10 | 752 days | 64% |
| Dana | 10/10 | 875 days | 57% |
| Cymen Crick | 7/10 | 1086 days | 34% |
| Alicia | 7/10 | 1087 days | 34% |
| EvaBelle | 9/10 | 1087 days | 36% |
| Marianne | 2/10 | 1087 days | 16% |
| Vanessa | 8/10 | 1301 days | 20% |
| Adventure B4 Dementia | 7/10 | 1362 days | 16% |
| Valg | 7/10 | 1362 days | 16% |
| La Vie | 10/10 | 1362 days | 17% |
| Felix | 8/10 | 1421 days | 14% |
| Susan | 9/10 | 1421 days | 14% |
| Liv | 9/10 | 1421 days | 14% |
| Shalamar | 8/10 | 1452 days | 12% |
| Tammy & Nigel | 10/10 | 1482 days | 11% |
| Kevin and Dorothy | 8/10 | 1513 days | 10% |
| Shar-ron & Jim | 8/10 | 1543 days | 9% |
| Shans | 8/10 | 1635 days | 7% |
| Jack Moxon | 9/10 | 1727 days | 5% |
| Cody | 9/10 | 1727 days | 5% |
| Gini | 8/10 | 1727 days | 5% |
| Salkinnoma | 9/10 | 1787 days | 5% |
| Richard & Chris, UK | 9/10 | 1787 days | 5% |
| A smith | 10/10 | 1818 days | 5% |
| Mark | 10/10 | 1818 days | 5% |
| Dennis Rijbroek | 6/10 | 1909 days | 4% |
| Michael | 3/10 | 2032 days | 2% |
| Rick’d | 10/10 | 2062 days | 4% |
| Emma & Tom | 9/10 | 2062 days | 4% |
| Georgia | 8/10 | 2093 days | 4% |
| Hope | 8/10 | 2121 days | 4% |
| Aisling | 9/10 | 2121 days | 4% |
| Ceri | 10/10 | 2121 days | 4% |
| Gareth Jones | 8/10 | 2121 days | 4% |
| Glen Marshall UK | 10/10 | 2121 days | 4% |
| Dan | 9/10 | 2152 days | 4% |
| Marinette Kegels | 5/10 | 2152 days | 3% |
| Flatlanders | 9/10 | 2152 days | 4% |
| Martin | 10/10 | 2183 days | 4% |
| Sian | 10/10 | 2183 days | 4% |
| Ymke Huisman | 9/10 | 2183 days | 4% |
| Maëlle Salmon | 9/10 | 2183 days | 4% |
| Angela | 8/10 | 2244 days | 4% |
| Axel | 9/10 | 2244 days | 4% |
| N&V | 8/10 | 2244 days | 4% |
| Mischa | 10/10 | 2244 days | 4% |
| Lilith Prins | 10/10 | 2528 days | 3% |
| Lucie B | 6/10 | 2778 days | 2% |
| Tracey Leyston | 10/10 | 2833 days | 3% |
| Florence Boinay | 10/10 | 2858 days | 3% |
| Katie Ball | 10/10 | 2884 days | 2% |
| Vanessa Moutic | 10/10 | 2936 days | 2% |
| Mathieu Quintard | 10/10 | 2958 days | 2% |
| Jessica Stokes | 7/10 | 3057 days | 2% |
| Jessica Powell | 10/10 | 3079 days | 2% |
| Michael Quinn | 10/10 | 3115 days | 2% |
| renee verwey | 10/10 | 3211 days | 2% |
| Zdenda Barvinek | 8/10 | 3240 days | 2% |
| Jean-Michel Sautter | 8/10 | 3244 days | 2% |
| Ana Guimaraes | 8/10 | 3288 days | 2% |
| leo lionheart | 10/10 | 3402 days | 1% |
| Yann Le Gac | 9/10 | 3492 days | 1% |
| Ian | 9/10 | 3583 days | 1% |
| David Cowling | 8/10 | 3663 days | 1% |
| kim | 10/10 | 3734 days | 1% |
| Mike Fricker | 8/10 | 3888 days | 0% |
| Cymen Crick | 9/10 | 3978 days | 0% |
| Mary Carter | 9/10 | 4131 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
2.18% 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
85%
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.