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 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
87.08%
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 | 2900 days | 100% |
| Cindy Blignaut | 10/10 | 3152 days | 81% |
| Jennie Tollerton | 10/10 | 3235 days | 75% |
| Shannon Malcolm | 8/10 | 3356 days | 65% |
| Soeren Buchheister | 9/10 | 3582 days | 49% |
| Ferdinand Hirsch | 9/10 | 3582 days | 49% |
| Niels | 8/10 | 3607 days | 47% |
| Nina Rittmann | 10/10 | 3798 days | 34% |
| Lisa Haedrich | 8/10 | 3820 days | 31% |
| Heike Schreiber | 9/10 | 3820 days | 32% |
| Kristina Breitwieser | 8/10 | 3824 days | 31% |
| Jeanne Minor | 9/10 | 3834 days | 30% |
| Michael Regensburger | 9/10 | 3842 days | 30% |
| Eloise | 8/10 | 3850 days | 29% |
| Clement Delrue | 8/10 | 3856 days | 29% |
| Jonas Weidner | 8/10 | 3861 days | 28% |
| Ben Schieber | 6/10 | 3863 days | 23% |
| Max Mustermann | 9/10 | 3868 days | 28% |
| Anna Bouteloup | 9/10 | 3876 days | 27% |
| Pauline Chailand | 8/10 | 3876 days | 27% |
| Martina Cervenkova | 10/10 | 3879 days | 28% |
| Roland Fischer | 7/10 | 3881 days | 25% |
| Daniel Roedel | 10/10 | 3882 days | 27% |
| Johannes Marold | 7/10 | 3889 days | 24% |
| Anat Yossef | 9/10 | 3889 days | 26% |
| Raviv Regev | 10/10 | 3915 days | 25% |
| Justin Kechanski | 9/10 | 3919 days | 24% |
| Selma Krap | 9/10 | 3937 days | 23% |
| Elisabeth Ringswandl | 10/10 | 4198 days | 4% |
| Thomas Haslbeck | 10/10 | 4198 days | 4% |
| Manuela Opprecht | 8/10 | 4249 days | 0% |
| Markus | 7/10 | 4586 days | 26% |
| Cornelia Witte | 6/10 | 4586 days | 23% |
| Ennico | 4/10 | 4587 days | 15% |
| Marvin Koever | 9/10 | 4589 days | 28% |
| Audrey Ripoche | 7/10 | 4916 days | 26% |
| Loesje | 10/10 | 4940 days | 28% |
| Tobi | 10/10 | 4945 days | 28% |
| Jaqi_Gary | 9/10 | 5060 days | 28% |
| KDS_Holiday | 10/10 | 5091 days | 28% |
| Caroline | 8/10 | 5405 days | 28% |
| Herman Plasman | 8/10 | 5411 days | 28% |
| Jennifer Holloway | 9/10 | 5645 days | 28% |
| Hershell | 8/10 | 6028 days | 28% |
| Carl and Angela Rapihana | 8/10 | 6149 days | 28% |
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
1.44% 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.