Hey, 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
73 Valid Reviews
The Wairau Diversion Reserve experience has a total of 89 reviews. There are 73 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 73 valid reviews:
| Rating | Count | Percentage | |
|---|---|---|---|
| 10/10 | 25 |
|
34% |
| 9/10 | 18 |
|
25% |
| 8/10 | 19 |
|
26% |
| 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% |
86.03% Average
The raw data average (mean) for all the Wairau Diversion Reserve valid reviews is 86.03% and is based on 73 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
87.14%
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 |
|---|---|---|---|
| Lena | 10/10 | 61 days | 100% |
| Ellie | 10/10 | 61 days | 100% |
| Cucamest | 8/10 | 122 days | 97% |
| Len Cons | 8/10 | 183 days | 96% |
| Matt | 10/10 | 214 days | 98% |
| BonnieBE | 7/10 | 822 days | 57% |
| Dana | 10/10 | 945 days | 49% |
| Cymen Crick | 7/10 | 1156 days | 28% |
| Alicia | 7/10 | 1157 days | 28% |
| EvaBelle | 9/10 | 1157 days | 30% |
| Marianne | 2/10 | 1157 days | 14% |
| Vanessa | 8/10 | 1371 days | 16% |
| Adventure B4 Dementia | 7/10 | 1432 days | 13% |
| Valg | 7/10 | 1432 days | 13% |
| La Vie | 10/10 | 1432 days | 14% |
| Felix | 8/10 | 1491 days | 11% |
| Susan | 9/10 | 1491 days | 11% |
| Liv | 9/10 | 1491 days | 11% |
| Shalamar | 8/10 | 1522 days | 10% |
| Tammy & Nigel | 10/10 | 1552 days | 9% |
| Kevin and Dorothy | 8/10 | 1583 days | 8% |
| Shar-ron & Jim | 8/10 | 1613 days | 7% |
| Shans | 8/10 | 1705 days | 5% |
| Jack Moxon | 9/10 | 1797 days | 5% |
| Cody | 9/10 | 1797 days | 5% |
| Gini | 8/10 | 1797 days | 5% |
| Salkinnoma | 9/10 | 1857 days | 5% |
| Richard & Chris, UK | 9/10 | 1857 days | 5% |
| A smith | 10/10 | 1888 days | 5% |
| Mark | 10/10 | 1888 days | 5% |
| Dennis Rijbroek | 6/10 | 1979 days | 4% |
| Michael | 3/10 | 2102 days | 2% |
| Rick’d | 10/10 | 2132 days | 4% |
| Emma & Tom | 9/10 | 2132 days | 4% |
| Georgia | 8/10 | 2163 days | 4% |
| Hope | 8/10 | 2191 days | 4% |
| Aisling | 9/10 | 2191 days | 4% |
| Ceri | 10/10 | 2191 days | 4% |
| Gareth Jones | 8/10 | 2191 days | 4% |
| Glen Marshall UK | 10/10 | 2191 days | 4% |
| Dan | 9/10 | 2222 days | 4% |
| Marinette Kegels | 5/10 | 2222 days | 3% |
| Flatlanders | 9/10 | 2222 days | 4% |
| Martin | 10/10 | 2253 days | 4% |
| Sian | 10/10 | 2253 days | 4% |
| Ymke Huisman | 9/10 | 2253 days | 4% |
| Maëlle Salmon | 9/10 | 2253 days | 4% |
| Angela | 8/10 | 2314 days | 4% |
| Axel | 9/10 | 2314 days | 4% |
| N&V | 8/10 | 2314 days | 4% |
| Mischa | 10/10 | 2314 days | 4% |
| Lilith Prins | 10/10 | 2598 days | 3% |
| Lucie B | 6/10 | 2848 days | 2% |
| Tracey Leyston | 10/10 | 2903 days | 3% |
| Florence Boinay | 10/10 | 2928 days | 3% |
| Katie Ball | 10/10 | 2954 days | 2% |
| Vanessa Moutic | 10/10 | 3006 days | 2% |
| Mathieu Quintard | 10/10 | 3028 days | 2% |
| Jessica Stokes | 7/10 | 3127 days | 2% |
| Jessica Powell | 10/10 | 3149 days | 2% |
| Michael Quinn | 10/10 | 3185 days | 2% |
| renee verwey | 10/10 | 3281 days | 2% |
| Zdenda Barvinek | 8/10 | 3310 days | 2% |
| Jean-Michel Sautter | 8/10 | 3314 days | 2% |
| Ana Guimaraes | 8/10 | 3358 days | 2% |
| leo lionheart | 10/10 | 3472 days | 1% |
| Yann Le Gac | 9/10 | 3562 days | 1% |
| Ian | 9/10 | 3653 days | 1% |
| David Cowling | 8/10 | 3733 days | 1% |
| kim | 10/10 | 3804 days | 1% |
| Mike Fricker | 8/10 | 3958 days | 0% |
| Cymen Crick | 9/10 | 4048 days | 0% |
| Mary Carter | 9/10 | 4201 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
1.43% 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
89%
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.