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
82 Valid Reviews
The Wairau Diversion Reserve experience has a total of 97 reviews. There are 82 valid reviews that are included when calculating the ranking score and 15 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 82 valid reviews:
| Rating | Count | Percentage | |
|---|---|---|---|
| 10/10 | 26 |
|
32% |
| 9/10 | 19 |
|
23% |
| 8/10 | 23 |
|
28% |
| 7/10 | 8 |
|
10% |
| 6/10 | 3 |
|
4% |
| 5/10 | 1 |
|
1% |
| 4/10 | 0 |
|
0% |
| 3/10 | 1 |
|
1% |
| 2/10 | 1 |
|
1% |
| 1/10 | 0 |
|
0% |
85.24% Average
The raw data average (mean) for all the Wairau Diversion Reserve valid reviews is 85.24% and is based on 82 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
83.49%
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 |
|---|---|---|---|
| Reanne | 7/10 | 161 days | 95% |
| Biddy | 8/10 | 192 days | 100% |
| Kirsty | 9/10 | 220 days | 100% |
| Mel S | 8/10 | 251 days | 98% |
| Shan | 10/10 | 312 days | 98% |
| Ben | 6/10 | 312 days | 84% |
| Vera | 7/10 | 343 days | 90% |
| Charlie | 8/10 | 526 days | 86% |
| Mindy | 8/10 | 557 days | 84% |
| Lena | 10/10 | 647 days | 79% |
| Ellie | 10/10 | 647 days | 79% |
| Cucamest | 8/10 | 708 days | 73% |
| Len Cons | 8/10 | 769 days | 67% |
| Matt | 10/10 | 800 days | 66% |
| BonnieBE | 7/10 | 1408 days | 14% |
| Dana | 10/10 | 1531 days | 10% |
| Cymen Crick | 7/10 | 1743 days | 5% |
| Alicia | 7/10 | 1743 days | 5% |
| EvaBelle | 9/10 | 1743 days | 5% |
| Marianne | 2/10 | 1743 days | 2% |
| Vanessa | 8/10 | 1957 days | 5% |
| Adventure B4 Dementia | 7/10 | 2018 days | 4% |
| Valg | 7/10 | 2018 days | 4% |
| La Vie | 10/10 | 2018 days | 5% |
| Felix | 8/10 | 2077 days | 4% |
| Susan | 9/10 | 2077 days | 5% |
| Liv | 9/10 | 2077 days | 5% |
| Shalamar | 8/10 | 2108 days | 4% |
| Tammy & Nigel | 10/10 | 2138 days | 4% |
| Kevin and Dorothy | 8/10 | 2169 days | 4% |
| Shar-ron & Jim | 8/10 | 2199 days | 4% |
| Shans | 8/10 | 2291 days | 4% |
| Jack Moxon | 9/10 | 2383 days | 4% |
| Cody | 9/10 | 2383 days | 4% |
| Gini | 8/10 | 2383 days | 4% |
| Salkinnoma | 9/10 | 2443 days | 4% |
| Richard & Chris, UK | 9/10 | 2443 days | 4% |
| A smith | 10/10 | 2474 days | 4% |
| Mark | 10/10 | 2474 days | 4% |
| Dennis Rijbroek | 6/10 | 2565 days | 3% |
| Michael | 3/10 | 2688 days | 2% |
| Rick’d | 10/10 | 2718 days | 3% |
| Emma & Tom | 9/10 | 2718 days | 3% |
| Georgia | 8/10 | 2749 days | 3% |
| Hope | 8/10 | 2777 days | 3% |
| Aisling | 9/10 | 2777 days | 3% |
| Ceri | 10/10 | 2777 days | 3% |
| Gareth Jones | 8/10 | 2777 days | 3% |
| Glen Marshall UK | 10/10 | 2777 days | 3% |
| Dan | 9/10 | 2808 days | 3% |
| Marinette Kegels | 5/10 | 2808 days | 2% |
| Flatlanders | 9/10 | 2808 days | 3% |
| Martin | 10/10 | 2839 days | 3% |
| Sian | 10/10 | 2839 days | 3% |
| Ymke Huisman | 9/10 | 2839 days | 3% |
| Maëlle Salmon | 9/10 | 2839 days | 3% |
| Angela | 8/10 | 2900 days | 3% |
| Axel | 9/10 | 2900 days | 3% |
| N&V | 8/10 | 2900 days | 3% |
| Mischa | 10/10 | 2900 days | 3% |
| Lilith Prins | 10/10 | 3184 days | 2% |
| Lucie B | 6/10 | 3434 days | 2% |
| Tracey Leyston | 10/10 | 3489 days | 2% |
| Florence Boinay | 10/10 | 3514 days | 2% |
| Katie Ball | 10/10 | 3540 days | 2% |
| Vanessa Moutic | 10/10 | 3592 days | 1% |
| Mathieu Quintard | 10/10 | 3614 days | 1% |
| Jessica Stokes | 7/10 | 3713 days | 1% |
| Jessica Powell | 10/10 | 3735 days | 1% |
| Michael Quinn | 10/10 | 3771 days | 1% |
| renee verwey | 10/10 | 3867 days | 1% |
| Zdenda Barvinek | 8/10 | 3896 days | 1% |
| Jean-Michel Sautter | 8/10 | 3900 days | 1% |
| Ana Guimaraes | 8/10 | 3944 days | 1% |
| leo lionheart | 10/10 | 4058 days | 1% |
| Yann Le Gac | 9/10 | 4149 days | 0% |
| Ian | 9/10 | 4239 days | 0% |
| David Cowling | 8/10 | 4319 days | 0% |
| kim | 10/10 | 4391 days | 1% |
| Mike Fricker | 8/10 | 4544 days | 1% |
| Cymen Crick | 9/10 | 4634 days | 1% |
| Mary Carter | 9/10 | 4787 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
2.14% 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
86%
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.