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 Abel Tasman Sailing Adventures.
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.
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Abel Tasman Sailing Adventures
Valid Reviews
84 Valid Reviews
The Abel Tasman Sailing Adventures experience has a total of 84 valid reviews. There are no 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 84 valid reviews:
| Rating | Count | Percentage | |
|---|---|---|---|
| 10/10 | 18 |
|
21% |
| 9/10 | 29 |
|
35% |
| 8/10 | 23 |
|
27% |
| 7/10 | 8 |
|
10% |
| 6/10 | 2 |
|
2% |
| 5/10 | 3 |
|
4% |
| 4/10 | 1 |
|
1% |
| 3/10 | 0 |
|
0% |
| 2/10 | 0 |
|
0% |
| 1/10 | 0 |
|
0% |
84.76% Average
The raw data average (mean) for all the Abel Tasman Sailing Adventures valid reviews is 84.76% and is based on 84 valid reviews. This value is not used to calculate the ranking score and it only provided here as a comparison to the weighted average.
Face-to-Face Reviews
76 Face-to-Face Reviews
The Rankers team meets with travellers while they’re in New Zealand and conducts face-to-face surveys. These reviews, in our opinion, are the most trusted in the industry and represent a critical control sample. To our knowledge, we are the only travel review website in the world that has gone to this extent.
More about face-to-face reviews
Within the 84 valid reviews, the experience has 76 face-to-face reviews collected during interviews by our team.
Below is the distribution of ratings for the 76 face-to-face reviews:
| Rating | Count | Percentage | |
|---|---|---|---|
| 10/10 | 14 |
|
18% |
| 9/10 | 27 |
|
36% |
| 8/10 | 21 |
|
28% |
| 7/10 | 8 |
|
11% |
| 6/10 | 2 |
|
3% |
| 5/10 | 3 |
|
4% |
| 4/10 | 1 |
|
1% |
| 3/10 | 0 |
|
0% |
| 2/10 | 0 |
|
0% |
| 1/10 | 0 |
|
0% |
83.95% Average
The raw data average (mean) for all the Abel Tasman Sailing Adventures face-to-face reviews is 83.95% and is based on 76 face-to-face reviews. This value is not used to calculate the ranking score and it only provided here for comparison purposes.
Weighted Average
85.96%
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 |
|---|---|---|---|
| Gail Earle | 9/10 | 1506 days | 100% |
| Shay S | 8/10 | 4091 days | 0% |
| Jon Barratt | 9/10 | 4524 days | 4% |
| Rolf Zwahlen | 9/10 | 4525 days | 4% |
| Janse | 8/10 | 4809 days | 4% |
| Richard Maddock | 8/10 | 4810 days | 4% |
| Ute Rogawski | 4/10 | 4814 days | 1% |
| John & Myra Sloan | 9/10 | 4893 days | 4% |
| Mary Banks | 10/10 | 5152 days | 4% |
| Lenny Appel | 9/10 | 5160 days | 4% |
| Nadja | 9/10 | 5174 days | 4% |
| Hannah Watts | 7/10 | 5174 days | 4% |
| Jayne | 9/10 | 5174 days | 4% |
| Tina | 9/10 | 5178 days | 4% |
| Heike Toepelt | 8/10 | 5179 days | 4% |
| Jason Hernandez | 8/10 | 5180 days | 4% |
| Petersen | 10/10 | 5180 days | 4% |
| Georgina Davey | 10/10 | 5184 days | 4% |
| Angela | 9/10 | 5445 days | 4% |
| joycevanb | 8/10 | 5463 days | 4% |
| Kay Beaumont | 10/10 | 5526 days | 4% |
| Johan | 8/10 | 5526 days | 4% |
| Belinda Godhard | 9/10 | 5549 days | 4% |
| liddellfiona | 10/10 | 5583 days | 4% |
| paulj | 10/10 | 5599 days | 4% |
| richelle | 9/10 | 5607 days | 4% |
| Cat Payne | 9/10 | 5771 days | 4% |
| Nikki Turner | 8/10 | 5779 days | 4% |
| AndreaT | 9/10 | 5854 days | 4% |
| TaraD | 8/10 | 5856 days | 4% |
| BiancaA | 8/10 | 5856 days | 4% |
| suet | 9/10 | 5858 days | 4% |
| rosil | 9/10 | 5858 days | 4% |
| Martina Bumiller | 8/10 | 5863 days | 4% |
| DennisK | 7/10 | 5870 days | 4% |
| Torsten | 8/10 | 5877 days | 4% |
| Steve Piluke | 10/10 | 5896 days | 4% |
| Brian | 6/10 | 5898 days | 3% |
| Paul | 8/10 | 5901 days | 4% |
| Christina | 10/10 | 5906 days | 4% |
| Linda Coles | 10/10 | 5917 days | 4% |
| Tasha-Moana Archibald | 10/10 | 5917 days | 4% |
| Freja | 10/10 | 5930 days | 4% |
| Sonja | 7/10 | 5962 days | 4% |
| Karen | 10/10 | 5976 days | 4% |
| Chris Hertz | 9/10 | 5976 days | 4% |
| Abby | 8/10 | 6222 days | 4% |
| Naoko | 9/10 | 6224 days | 4% |
| Jennifer Baulch | 9/10 | 6234 days | 4% |
| Marion | 5/10 | 6238 days | 2% |
| Christian | 8/10 | 6245 days | 4% |
| Steve Burke | 7/10 | 6245 days | 4% |
| Sabine | 10/10 | 6249 days | 4% |
| Greg & Lynette | 10/10 | 6251 days | 4% |
| Roger Repolusk | 8/10 | 6255 days | 4% |
| Simon Mills | 9/10 | 6255 days | 4% |
| Christian Schwerdt | 8/10 | 6259 days | 4% |
| Wanda | 9/10 | 6259 days | 4% |
| Knol | 9/10 | 6259 days | 4% |
| Neil | 8/10 | 6271 days | 4% |
| Emma | 10/10 | 6272 days | 4% |
| Tamzin | 10/10 | 6272 days | 4% |
| Laura | 9/10 | 6294 days | 4% |
| Swen Schroder | 5/10 | 6298 days | 2% |
| Jann Anderssen | 10/10 | 6298 days | 4% |
| Alex | 9/10 | 6300 days | 4% |
| Mette de Graap | 7/10 | 6300 days | 4% |
| Thierry Berdah | 10/10 | 6301 days | 4% |
| Helena | 7/10 | 6301 days | 4% |
| Peter Katafey | 7/10 | 6301 days | 4% |
| Lindsey Woosnam | 9/10 | 6301 days | 4% |
| Bronwyn Gaby | 8/10 | 6304 days | 4% |
| Gail | 9/10 | 6304 days | 4% |
| Willemien | 9/10 | 6350 days | 4% |
| Richard Kindgren | 7/10 | 6350 days | 4% |
| silja tans | 9/10 | 6350 days | 4% |
| David | 5/10 | 6579 days | 2% |
| Heather | 9/10 | 6595 days | 4% |
| Jossy | 8/10 | 6627 days | 4% |
| Italy | 9/10 | 6630 days | 4% |
| Nina | 8/10 | 6630 days | 4% |
| Helen | 8/10 | 6630 days | 4% |
| Colin | 6/10 | 6632 days | 3% |
| Didier | 8/10 | 6632 days | 4% |
Adjustments
Several adjustments to the weighted average are added to improve relevancy and credibility. These adjustments apply equally to all experiences that meet the criteria.
Sample Size Adjustment
No Adjustment
A reasonable number of reviews are necessary in order for the average to be credible and for an experience to take a prime position within the ranking tables. As such, experiences with only a few reviews have a moderated score. This does not mean that the experience or the reviews can't be trusted. The Abel Tasman Sailing Adventures experience has plenty of reviews and does not meet the criteria for any adjustment.
Recent Reviews Adjustment
-3.46% Adjustment
There may be an adjustment if this experience hasn't received any reviews within the last 66 days. However the Abel Tasman Sailing Adventures experience does not meet the criteria for any adjustment.
In addition, an experience's ranking score may be adjusted for each day there is no new ranking. After 1 day the adjustment comes into effect. The maximum number of days that can be adjusted for is 200 days. Due to the seasonal nature of many businesses, this adjustment is applied dynamically throughout the year.
The Abel Tasman Sailing Adventures experience has been adjusted for 200 days. Adjustments are according to the following table.
| Days | Adjustment |
|---|---|
| … | … |
| 197 | -3.41% |
| 198 | -3.43% |
| 199 | -3.45% |
| 200 | -3.46% |
| 201 | -3.48% |
| 202 | -3.50% |
| 203 | -3.52% |
| … | … |
Balancing Adjustment
2.36% 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 customers 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
85%
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.