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
70 Valid Reviews
The Wairau Diversion Reserve experience has a total of 84 reviews. There are 70 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 70 valid reviews:
| Rating | Count | Percentage | |
|---|---|---|---|
| 10/10 | 23 |
|
33% |
| 9/10 | 18 |
|
26% |
| 8/10 | 18 |
|
26% |
| 7/10 | 6 |
|
9% |
| 6/10 | 2 |
|
3% |
| 5/10 | 1 |
|
1% |
| 4/10 | 0 |
|
0% |
| 3/10 | 1 |
|
1% |
| 2/10 | 1 |
|
1% |
| 1/10 | 0 |
|
0% |
85.71% Average
The raw data average (mean) for all the Wairau Diversion Reserve valid reviews is 85.71% and is based on 70 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
83.87%
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 |
|---|---|---|---|
| Len Cons | 8/10 | 47 days | 98% |
| Matt | 10/10 | 78 days | 100% |
| BonnieBE | 7/10 | 686 days | 68% |
| Dana | 10/10 | 809 days | 63% |
| Cymen Crick | 7/10 | 1020 days | 39% |
| Alicia | 7/10 | 1021 days | 39% |
| EvaBelle | 9/10 | 1021 days | 41% |
| Marianne | 2/10 | 1021 days | 19% |
| Vanessa | 8/10 | 1235 days | 24% |
| Adventure B4 Dementia | 7/10 | 1296 days | 19% |
| Valg | 7/10 | 1296 days | 19% |
| La Vie | 10/10 | 1296 days | 21% |
| Felix | 8/10 | 1355 days | 17% |
| Susan | 9/10 | 1355 days | 17% |
| Liv | 9/10 | 1355 days | 17% |
| Shalamar | 8/10 | 1386 days | 15% |
| Tammy & Nigel | 10/10 | 1416 days | 14% |
| Kevin and Dorothy | 8/10 | 1447 days | 12% |
| Shar-ron & Jim | 8/10 | 1477 days | 11% |
| Shans | 8/10 | 1569 days | 8% |
| Jack Moxon | 9/10 | 1661 days | 6% |
| Cody | 9/10 | 1661 days | 6% |
| Gini | 8/10 | 1661 days | 6% |
| Salkinnoma | 9/10 | 1721 days | 5% |
| Richard & Chris, UK | 9/10 | 1721 days | 5% |
| A smith | 10/10 | 1752 days | 5% |
| Mark | 10/10 | 1752 days | 5% |
| Dennis Rijbroek | 6/10 | 1843 days | 4% |
| Michael | 3/10 | 1966 days | 2% |
| Rick’d | 10/10 | 1996 days | 4% |
| Emma & Tom | 9/10 | 1996 days | 4% |
| Georgia | 8/10 | 2027 days | 4% |
| Hope | 8/10 | 2055 days | 4% |
| Aisling | 9/10 | 2055 days | 4% |
| Ceri | 10/10 | 2055 days | 4% |
| Gareth Jones | 8/10 | 2055 days | 4% |
| Glen Marshall UK | 10/10 | 2055 days | 4% |
| Dan | 9/10 | 2086 days | 4% |
| Marinette Kegels | 5/10 | 2086 days | 3% |
| Flatlanders | 9/10 | 2086 days | 4% |
| Martin | 10/10 | 2117 days | 4% |
| Sian | 10/10 | 2117 days | 4% |
| Ymke Huisman | 9/10 | 2117 days | 4% |
| Maëlle Salmon | 9/10 | 2117 days | 4% |
| Angela | 8/10 | 2178 days | 4% |
| Axel | 9/10 | 2178 days | 4% |
| N&V | 8/10 | 2178 days | 4% |
| Mischa | 10/10 | 2178 days | 4% |
| Lilith Prins | 10/10 | 2462 days | 3% |
| Lucie B | 6/10 | 2712 days | 2% |
| Tracey Leyston | 10/10 | 2767 days | 3% |
| Florence Boinay | 10/10 | 2792 days | 3% |
| Katie Ball | 10/10 | 2818 days | 2% |
| Vanessa Moutic | 10/10 | 2870 days | 2% |
| Mathieu Quintard | 10/10 | 2892 days | 2% |
| Jessica Stokes | 7/10 | 2991 days | 2% |
| Jessica Powell | 10/10 | 3013 days | 2% |
| Michael Quinn | 10/10 | 3049 days | 2% |
| renee verwey | 10/10 | 3145 days | 2% |
| Zdenda Barvinek | 8/10 | 3174 days | 2% |
| Jean-Michel Sautter | 8/10 | 3178 days | 2% |
| Ana Guimaraes | 8/10 | 3222 days | 2% |
| leo lionheart | 10/10 | 3336 days | 1% |
| Yann Le Gac | 9/10 | 3426 days | 1% |
| Ian | 9/10 | 3517 days | 1% |
| David Cowling | 8/10 | 3597 days | 1% |
| kim | 10/10 | 3668 days | 1% |
| Mike Fricker | 8/10 | 3822 days | 0% |
| Cymen Crick | 9/10 | 3912 days | 0% |
| Mary Carter | 9/10 | 4065 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
2.06% 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.