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
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
83.36%
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 | 47 days | 100% |
| Cucamest | 8/10 | 78 days | 99% |
| Len Cons | 8/10 | 139 days | 99% |
| Matt | 10/10 | 170 days | 100% |
| BonnieBE | 7/10 | 778 days | 62% |
| Dana | 10/10 | 901 days | 54% |
| Cymen Crick | 7/10 | 1113 days | 32% |
| Alicia | 7/10 | 1113 days | 32% |
| EvaBelle | 9/10 | 1113 days | 34% |
| Marianne | 2/10 | 1113 days | 15% |
| Vanessa | 8/10 | 1327 days | 19% |
| Adventure B4 Dementia | 7/10 | 1388 days | 15% |
| Valg | 7/10 | 1388 days | 15% |
| La Vie | 10/10 | 1388 days | 16% |
| Felix | 8/10 | 1447 days | 13% |
| Susan | 9/10 | 1447 days | 13% |
| Liv | 9/10 | 1447 days | 13% |
| Shalamar | 8/10 | 1478 days | 11% |
| Tammy & Nigel | 10/10 | 1508 days | 11% |
| Kevin and Dorothy | 8/10 | 1539 days | 9% |
| Shar-ron & Jim | 8/10 | 1569 days | 8% |
| Shans | 8/10 | 1661 days | 6% |
| Jack Moxon | 9/10 | 1753 days | 5% |
| Cody | 9/10 | 1753 days | 5% |
| Gini | 8/10 | 1753 days | 5% |
| Salkinnoma | 9/10 | 1813 days | 5% |
| Richard & Chris, UK | 9/10 | 1813 days | 5% |
| A smith | 10/10 | 1844 days | 5% |
| Mark | 10/10 | 1844 days | 5% |
| Dennis Rijbroek | 6/10 | 1935 days | 4% |
| Michael | 3/10 | 2058 days | 2% |
| Rick’d | 10/10 | 2088 days | 4% |
| Emma & Tom | 9/10 | 2088 days | 4% |
| Georgia | 8/10 | 2119 days | 4% |
| Hope | 8/10 | 2147 days | 4% |
| Aisling | 9/10 | 2147 days | 4% |
| Ceri | 10/10 | 2147 days | 4% |
| Gareth Jones | 8/10 | 2147 days | 4% |
| Glen Marshall UK | 10/10 | 2147 days | 4% |
| Dan | 9/10 | 2178 days | 4% |
| Marinette Kegels | 5/10 | 2178 days | 3% |
| Flatlanders | 9/10 | 2178 days | 4% |
| Martin | 10/10 | 2209 days | 4% |
| Sian | 10/10 | 2209 days | 4% |
| Ymke Huisman | 9/10 | 2209 days | 4% |
| Maëlle Salmon | 9/10 | 2209 days | 4% |
| Angela | 8/10 | 2270 days | 4% |
| Axel | 9/10 | 2270 days | 4% |
| N&V | 8/10 | 2270 days | 4% |
| Mischa | 10/10 | 2270 days | 4% |
| Lilith Prins | 10/10 | 2554 days | 3% |
| Lucie B | 6/10 | 2804 days | 2% |
| Tracey Leyston | 10/10 | 2859 days | 3% |
| Florence Boinay | 10/10 | 2884 days | 3% |
| Katie Ball | 10/10 | 2910 days | 2% |
| Vanessa Moutic | 10/10 | 2962 days | 2% |
| Mathieu Quintard | 10/10 | 2984 days | 2% |
| Jessica Stokes | 7/10 | 3083 days | 2% |
| Jessica Powell | 10/10 | 3105 days | 2% |
| Michael Quinn | 10/10 | 3141 days | 2% |
| renee verwey | 10/10 | 3237 days | 2% |
| Zdenda Barvinek | 8/10 | 3266 days | 2% |
| Jean-Michel Sautter | 8/10 | 3270 days | 2% |
| Ana Guimaraes | 8/10 | 3314 days | 2% |
| leo lionheart | 10/10 | 3428 days | 1% |
| Yann Le Gac | 9/10 | 3519 days | 1% |
| Ian | 9/10 | 3609 days | 1% |
| David Cowling | 8/10 | 3689 days | 1% |
| kim | 10/10 | 3761 days | 1% |
| Mike Fricker | 8/10 | 3914 days | 0% |
| Cymen Crick | 9/10 | 4004 days | 0% |
| Mary Carter | 9/10 | 4157 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
2.17% 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.