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 Sandboarding.
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.
Sandboarding
Valid Reviews
45 Valid Reviews
The Sandboarding experience has a total of 47 reviews. There are 45 valid reviews that are included when calculating the ranking score and 2 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 45 valid reviews:
| Rating | Count | Percentage | |
|---|---|---|---|
| 10/10 | 12 |
|
27% |
| 9/10 | 13 |
|
29% |
| 8/10 | 13 |
|
29% |
| 7/10 | 4 |
|
9% |
| 6/10 | 2 |
|
4% |
| 5/10 | 0 |
|
0% |
| 4/10 | 1 |
|
2% |
| 3/10 | 0 |
|
0% |
| 2/10 | 0 |
|
0% |
| 1/10 | 0 |
|
0% |
85.56% Average
The raw data average (mean) for all the Sandboarding valid reviews is 85.56% and is based on 45 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
35 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 45 valid reviews, the experience has 35 face-to-face reviews collected during interviews by our team.
Below is the distribution of ratings for the 35 face-to-face reviews:
| Rating | Count | Percentage | |
|---|---|---|---|
| 10/10 | 5 |
|
14% |
| 9/10 | 12 |
|
34% |
| 8/10 | 11 |
|
31% |
| 7/10 | 4 |
|
11% |
| 6/10 | 2 |
|
6% |
| 5/10 | 0 |
|
0% |
| 4/10 | 1 |
|
3% |
| 3/10 | 0 |
|
0% |
| 2/10 | 0 |
|
0% |
| 1/10 | 0 |
|
0% |
82.86% Average
The raw data average (mean) for all the Sandboarding face-to-face reviews is 82.86% and is based on 35 face-to-face reviews. This value is not used to calculate the ranking score and it only provided here for comparison purposes.
Weighted Average
87.49%
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 |
|---|---|---|---|
| Keilani | 10/10 | 2244 days | 100% |
| Cindy Blignaut | 10/10 | 2496 days | 88% |
| Jennie Tollerton | 10/10 | 2579 days | 84% |
| Shannon Malcolm | 8/10 | 2700 days | 76% |
| Soeren Buchheister | 9/10 | 2926 days | 66% |
| Ferdinand Hirsch | 9/10 | 2926 days | 66% |
| Niels | 8/10 | 2951 days | 64% |
| Nina Rittmann | 10/10 | 3142 days | 56% |
| Lisa Haedrich | 8/10 | 3164 days | 54% |
| Heike Schreiber | 9/10 | 3164 days | 54% |
| Kristina Breitwieser | 8/10 | 3168 days | 54% |
| Jeanne Minor | 9/10 | 3178 days | 54% |
| Michael Regensburger | 9/10 | 3186 days | 53% |
| Eloise | 8/10 | 3194 days | 52% |
| Clement Delrue | 8/10 | 3200 days | 52% |
| Jonas Weidner | 8/10 | 3205 days | 52% |
| Ben Schieber | 6/10 | 3207 days | 45% |
| Max Mustermann | 9/10 | 3212 days | 52% |
| Anna Bouteloup | 9/10 | 3220 days | 52% |
| Pauline Chailand | 8/10 | 3220 days | 51% |
| Martina Cervenkova | 10/10 | 3223 days | 52% |
| Roland Fischer | 7/10 | 3225 days | 48% |
| Daniel Roedel | 10/10 | 3226 days | 52% |
| Johannes Marold | 7/10 | 3233 days | 48% |
| Anat Yossef | 9/10 | 3233 days | 51% |
| Raviv Regev | 10/10 | 3259 days | 50% |
| Justin Kechanski | 9/10 | 3263 days | 50% |
| Selma Krap | 9/10 | 3281 days | 49% |
| Elisabeth Ringswandl | 10/10 | 3542 days | 37% |
| Thomas Haslbeck | 10/10 | 3542 days | 37% |
| Manuela Opprecht | 8/10 | 3593 days | 33% |
| Markus | 7/10 | 3930 days | 16% |
| Cornelia Witte | 6/10 | 3930 days | 15% |
| Ennico | 4/10 | 3931 days | 10% |
| Marvin Koever | 9/10 | 3933 days | 17% |
| Audrey Ripoche | 7/10 | 4260 days | 1% |
| Loesje | 10/10 | 4284 days | 0% |
| Tobi | 10/10 | 4289 days | 0% |
| Jaqi_Gary | 9/10 | 4404 days | 20% |
| KDS_Holiday | 10/10 | 4435 days | 21% |
| Caroline | 8/10 | 4749 days | 20% |
| Herman Plasman | 8/10 | 4755 days | 20% |
| Jennifer Holloway | 9/10 | 4989 days | 20% |
| Hershell | 8/10 | 5372 days | 20% |
| Carl and Angela Rapihana | 8/10 | 5493 days | 20% |
Adjustments
No Adjustment
Several adjustments to the weighted average may be added to improve relevancy and credibility. Sandboarding does not meet the criteria for any of these adjustments to apply.
Balancing Adjustment
1.38% 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.