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 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
84.85%
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 | 46 days | 100% |
| Ben | 6/10 | 46 days | 86% |
| Vera | 7/10 | 77 days | 93% |
| Charlie | 8/10 | 260 days | 94% |
| Mindy | 8/10 | 291 days | 93% |
| Lena | 10/10 | 381 days | 92% |
| Ellie | 10/10 | 381 days | 92% |
| Cucamest | 8/10 | 442 days | 87% |
| Len Cons | 8/10 | 503 days | 84% |
| Matt | 10/10 | 534 days | 84% |
| BonnieBE | 7/10 | 1142 days | 29% |
| Dana | 10/10 | 1265 days | 23% |
| Cymen Crick | 7/10 | 1476 days | 11% |
| Alicia | 7/10 | 1477 days | 11% |
| EvaBelle | 9/10 | 1477 days | 12% |
| Marianne | 2/10 | 1477 days | 5% |
| Vanessa | 8/10 | 1691 days | 6% |
| Adventure B4 Dementia | 7/10 | 1752 days | 5% |
| Valg | 7/10 | 1752 days | 5% |
| La Vie | 10/10 | 1752 days | 5% |
| Felix | 8/10 | 1811 days | 5% |
| Susan | 9/10 | 1811 days | 5% |
| Liv | 9/10 | 1811 days | 5% |
| Shalamar | 8/10 | 1842 days | 5% |
| Tammy & Nigel | 10/10 | 1872 days | 5% |
| Kevin and Dorothy | 8/10 | 1903 days | 5% |
| Shar-ron & Jim | 8/10 | 1933 days | 5% |
| Shans | 8/10 | 2025 days | 5% |
| Jack Moxon | 9/10 | 2117 days | 4% |
| Cody | 9/10 | 2117 days | 4% |
| Gini | 8/10 | 2117 days | 4% |
| Salkinnoma | 9/10 | 2177 days | 4% |
| Richard & Chris, UK | 9/10 | 2177 days | 4% |
| A smith | 10/10 | 2208 days | 4% |
| Mark | 10/10 | 2208 days | 4% |
| Dennis Rijbroek | 6/10 | 2299 days | 3% |
| Michael | 3/10 | 2422 days | 2% |
| Rick’d | 10/10 | 2452 days | 4% |
| Emma & Tom | 9/10 | 2452 days | 4% |
| Georgia | 8/10 | 2483 days | 4% |
| Hope | 8/10 | 2511 days | 4% |
| Aisling | 9/10 | 2511 days | 4% |
| Ceri | 10/10 | 2511 days | 4% |
| Gareth Jones | 8/10 | 2511 days | 4% |
| Glen Marshall UK | 10/10 | 2511 days | 4% |
| Dan | 9/10 | 2542 days | 4% |
| Marinette Kegels | 5/10 | 2542 days | 3% |
| Flatlanders | 9/10 | 2542 days | 4% |
| Martin | 10/10 | 2573 days | 4% |
| Sian | 10/10 | 2573 days | 4% |
| Ymke Huisman | 9/10 | 2573 days | 3% |
| Maëlle Salmon | 9/10 | 2573 days | 3% |
| Angela | 8/10 | 2634 days | 3% |
| Axel | 9/10 | 2634 days | 3% |
| N&V | 8/10 | 2634 days | 3% |
| Mischa | 10/10 | 2634 days | 3% |
| Lilith Prins | 10/10 | 2918 days | 3% |
| Lucie B | 6/10 | 3168 days | 2% |
| Tracey Leyston | 10/10 | 3223 days | 2% |
| Florence Boinay | 10/10 | 3248 days | 2% |
| Katie Ball | 10/10 | 3274 days | 2% |
| Vanessa Moutic | 10/10 | 3326 days | 2% |
| Mathieu Quintard | 10/10 | 3348 days | 2% |
| Jessica Stokes | 7/10 | 3447 days | 2% |
| Jessica Powell | 10/10 | 3469 days | 2% |
| Michael Quinn | 10/10 | 3505 days | 2% |
| renee verwey | 10/10 | 3601 days | 2% |
| Zdenda Barvinek | 8/10 | 3630 days | 1% |
| Jean-Michel Sautter | 8/10 | 3634 days | 1% |
| Ana Guimaraes | 8/10 | 3678 days | 1% |
| leo lionheart | 10/10 | 3792 days | 1% |
| Yann Le Gac | 9/10 | 3882 days | 1% |
| Ian | 9/10 | 3973 days | 1% |
| David Cowling | 8/10 | 4053 days | 1% |
| kim | 10/10 | 4124 days | 0% |
| Mike Fricker | 8/10 | 4278 days | 0% |
| Cymen Crick | 9/10 | 4368 days | 0% |
| Mary Carter | 9/10 | 4521 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.