Kia ora, 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
84.56%
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 | 38 days | 99% |
| Kirsty | 9/10 | 66 days | 100% |
| Mel S | 8/10 | 97 days | 99% |
| Shan | 10/10 | 158 days | 100% |
| Ben | 6/10 | 158 days | 86% |
| Vera | 7/10 | 189 days | 92% |
| Charlie | 8/10 | 372 days | 91% |
| Mindy | 8/10 | 403 days | 90% |
| Lena | 10/10 | 493 days | 87% |
| Ellie | 10/10 | 493 days | 87% |
| Cucamest | 8/10 | 554 days | 82% |
| Len Cons | 8/10 | 615 days | 78% |
| Matt | 10/10 | 646 days | 77% |
| BonnieBE | 7/10 | 1254 days | 22% |
| Dana | 10/10 | 1377 days | 16% |
| Cymen Crick | 7/10 | 1588 days | 7% |
| Alicia | 7/10 | 1589 days | 7% |
| EvaBelle | 9/10 | 1589 days | 8% |
| Marianne | 2/10 | 1589 days | 3% |
| Vanessa | 8/10 | 1803 days | 5% |
| Adventure B4 Dementia | 7/10 | 1864 days | 4% |
| Valg | 7/10 | 1864 days | 4% |
| La Vie | 10/10 | 1864 days | 5% |
| Felix | 8/10 | 1923 days | 4% |
| Susan | 9/10 | 1923 days | 5% |
| Liv | 9/10 | 1923 days | 5% |
| Shalamar | 8/10 | 1954 days | 4% |
| Tammy & Nigel | 10/10 | 1984 days | 4% |
| Kevin and Dorothy | 8/10 | 2015 days | 4% |
| Shar-ron & Jim | 8/10 | 2045 days | 4% |
| Shans | 8/10 | 2137 days | 4% |
| Jack Moxon | 9/10 | 2229 days | 4% |
| Cody | 9/10 | 2229 days | 4% |
| Gini | 8/10 | 2229 days | 4% |
| Salkinnoma | 9/10 | 2289 days | 4% |
| Richard & Chris, UK | 9/10 | 2289 days | 4% |
| A smith | 10/10 | 2320 days | 4% |
| Mark | 10/10 | 2320 days | 4% |
| Dennis Rijbroek | 6/10 | 2411 days | 3% |
| Michael | 3/10 | 2534 days | 2% |
| Rick’d | 10/10 | 2564 days | 3% |
| Emma & Tom | 9/10 | 2564 days | 3% |
| Georgia | 8/10 | 2595 days | 3% |
| Hope | 8/10 | 2623 days | 3% |
| Aisling | 9/10 | 2623 days | 3% |
| Ceri | 10/10 | 2623 days | 3% |
| Gareth Jones | 8/10 | 2623 days | 3% |
| Glen Marshall UK | 10/10 | 2623 days | 3% |
| Dan | 9/10 | 2654 days | 3% |
| Marinette Kegels | 5/10 | 2654 days | 2% |
| Flatlanders | 9/10 | 2654 days | 3% |
| Martin | 10/10 | 2685 days | 3% |
| Sian | 10/10 | 2685 days | 3% |
| Ymke Huisman | 9/10 | 2685 days | 3% |
| Maëlle Salmon | 9/10 | 2685 days | 3% |
| Angela | 8/10 | 2746 days | 3% |
| Axel | 9/10 | 2746 days | 3% |
| N&V | 8/10 | 2746 days | 3% |
| Mischa | 10/10 | 2746 days | 3% |
| Lilith Prins | 10/10 | 3030 days | 2% |
| Lucie B | 6/10 | 3280 days | 2% |
| Tracey Leyston | 10/10 | 3335 days | 2% |
| Florence Boinay | 10/10 | 3360 days | 2% |
| Katie Ball | 10/10 | 3386 days | 2% |
| Vanessa Moutic | 10/10 | 3438 days | 2% |
| Mathieu Quintard | 10/10 | 3460 days | 2% |
| Jessica Stokes | 7/10 | 3559 days | 1% |
| Jessica Powell | 10/10 | 3581 days | 1% |
| Michael Quinn | 10/10 | 3617 days | 1% |
| renee verwey | 10/10 | 3713 days | 1% |
| Zdenda Barvinek | 8/10 | 3742 days | 1% |
| Jean-Michel Sautter | 8/10 | 3746 days | 1% |
| Ana Guimaraes | 8/10 | 3790 days | 1% |
| leo lionheart | 10/10 | 3904 days | 1% |
| Yann Le Gac | 9/10 | 3994 days | 0% |
| Ian | 9/10 | 4085 days | 0% |
| David Cowling | 8/10 | 4165 days | 0% |
| kim | 10/10 | 4236 days | 0% |
| Mike Fricker | 8/10 | 4390 days | 1% |
| Cymen Crick | 9/10 | 4480 days | 1% |
| Mary Carter | 9/10 | 4633 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
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.