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
81 Valid Reviews
The Wairau Diversion Reserve experience has a total of 96 reviews. There are 81 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 81 valid reviews:
| Rating | Count | Percentage | |
|---|---|---|---|
| 10/10 | 26 |
|
32% |
| 9/10 | 19 |
|
23% |
| 8/10 | 23 |
|
28% |
| 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% |
85.43% Average
The raw data average (mean) for all the Wairau Diversion Reserve valid reviews is 85.43% and is based on 81 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
84.57%
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 |
|---|---|---|---|
| Biddy | 8/10 | 12 days | 99% |
| Kirsty | 9/10 | 40 days | 100% |
| Mel S | 8/10 | 71 days | 99% |
| Shan | 10/10 | 132 days | 100% |
| Ben | 6/10 | 132 days | 86% |
| Vera | 7/10 | 163 days | 93% |
| Charlie | 8/10 | 346 days | 92% |
| Mindy | 8/10 | 377 days | 91% |
| Lena | 10/10 | 467 days | 88% |
| Ellie | 10/10 | 467 days | 88% |
| Cucamest | 8/10 | 528 days | 83% |
| Len Cons | 8/10 | 589 days | 79% |
| Matt | 10/10 | 620 days | 79% |
| BonnieBE | 7/10 | 1228 days | 24% |
| Dana | 10/10 | 1351 days | 18% |
| Cymen Crick | 7/10 | 1562 days | 8% |
| Alicia | 7/10 | 1563 days | 8% |
| EvaBelle | 9/10 | 1563 days | 9% |
| Marianne | 2/10 | 1563 days | 4% |
| Vanessa | 8/10 | 1777 days | 5% |
| Adventure B4 Dementia | 7/10 | 1838 days | 5% |
| Valg | 7/10 | 1838 days | 5% |
| La Vie | 10/10 | 1838 days | 5% |
| Felix | 8/10 | 1897 days | 5% |
| Susan | 9/10 | 1897 days | 5% |
| Liv | 9/10 | 1897 days | 5% |
| Shalamar | 8/10 | 1928 days | 5% |
| Tammy & Nigel | 10/10 | 1958 days | 5% |
| Kevin and Dorothy | 8/10 | 1989 days | 5% |
| Shar-ron & Jim | 8/10 | 2019 days | 5% |
| Shans | 8/10 | 2111 days | 4% |
| Jack Moxon | 9/10 | 2203 days | 4% |
| Cody | 9/10 | 2203 days | 4% |
| Gini | 8/10 | 2203 days | 4% |
| Salkinnoma | 9/10 | 2263 days | 4% |
| Richard & Chris, UK | 9/10 | 2263 days | 4% |
| A smith | 10/10 | 2294 days | 4% |
| Mark | 10/10 | 2294 days | 4% |
| Dennis Rijbroek | 6/10 | 2385 days | 3% |
| Michael | 3/10 | 2508 days | 2% |
| Rick’d | 10/10 | 2538 days | 4% |
| Emma & Tom | 9/10 | 2538 days | 4% |
| Georgia | 8/10 | 2569 days | 3% |
| Hope | 8/10 | 2597 days | 3% |
| Aisling | 9/10 | 2597 days | 3% |
| Ceri | 10/10 | 2597 days | 3% |
| Gareth Jones | 8/10 | 2597 days | 3% |
| Glen Marshall UK | 10/10 | 2597 days | 3% |
| Dan | 9/10 | 2628 days | 3% |
| Marinette Kegels | 5/10 | 2628 days | 3% |
| Flatlanders | 9/10 | 2628 days | 3% |
| Martin | 10/10 | 2659 days | 3% |
| Sian | 10/10 | 2659 days | 3% |
| Ymke Huisman | 9/10 | 2659 days | 3% |
| Maëlle Salmon | 9/10 | 2659 days | 3% |
| Angela | 8/10 | 2720 days | 3% |
| Axel | 9/10 | 2720 days | 3% |
| N&V | 8/10 | 2720 days | 3% |
| Mischa | 10/10 | 2720 days | 3% |
| Lilith Prins | 10/10 | 3004 days | 3% |
| Lucie B | 6/10 | 3254 days | 2% |
| Tracey Leyston | 10/10 | 3309 days | 2% |
| Florence Boinay | 10/10 | 3334 days | 2% |
| Katie Ball | 10/10 | 3360 days | 2% |
| Vanessa Moutic | 10/10 | 3412 days | 2% |
| Mathieu Quintard | 10/10 | 3434 days | 2% |
| Jessica Stokes | 7/10 | 3533 days | 2% |
| Jessica Powell | 10/10 | 3555 days | 2% |
| Michael Quinn | 10/10 | 3591 days | 2% |
| renee verwey | 10/10 | 3687 days | 1% |
| Zdenda Barvinek | 8/10 | 3716 days | 1% |
| Jean-Michel Sautter | 8/10 | 3720 days | 1% |
| Ana Guimaraes | 8/10 | 3764 days | 1% |
| leo lionheart | 10/10 | 3878 days | 1% |
| Yann Le Gac | 9/10 | 3968 days | 1% |
| Ian | 9/10 | 4059 days | 1% |
| David Cowling | 8/10 | 4139 days | 0% |
| kim | 10/10 | 4210 days | 0% |
| Mike Fricker | 8/10 | 4364 days | 0% |
| Cymen Crick | 9/10 | 4454 days | 1% |
| Mary Carter | 9/10 | 4607 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
1.91% 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.