Kia ora, 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 Buller Gorge Swingbridge.
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.
Buller Gorge Swingbridge
Valid Reviews
131 Valid Reviews
The Buller Gorge Swingbridge experience has a total of 133 reviews. There are 131 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 131 valid reviews:
| Rating | Count | Percentage | |
|---|---|---|---|
| 10/10 | 16 |
|
12% |
| 9/10 | 11 |
|
8% |
| 8/10 | 28 |
|
21% |
| 7/10 | 19 |
|
15% |
| 6/10 | 14 |
|
11% |
| 5/10 | 12 |
|
9% |
| 4/10 | 10 |
|
8% |
| 3/10 | 10 |
|
8% |
| 2/10 | 5 |
|
4% |
| 1/10 | 6 |
|
5% |
64.58% Average
The raw data average (mean) for all the Buller Gorge Swingbridge valid reviews is 64.58% and is based on 131 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
118 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 131 valid reviews, the experience has 118 face-to-face reviews collected during interviews by our team.
Below is the distribution of ratings for the 118 face-to-face reviews:
| Rating | Count | Percentage | |
|---|---|---|---|
| 10/10 | 14 |
|
12% |
| 9/10 | 10 |
|
8% |
| 8/10 | 27 |
|
23% |
| 7/10 | 18 |
|
15% |
| 6/10 | 12 |
|
10% |
| 5/10 | 12 |
|
10% |
| 4/10 | 9 |
|
8% |
| 3/10 | 7 |
|
6% |
| 2/10 | 4 |
|
3% |
| 1/10 | 5 |
|
4% |
65.59% Average
The raw data average (mean) for all the Buller Gorge Swingbridge face-to-face reviews is 65.59% and is based on 118 face-to-face reviews. This value is not used to calculate the ranking score and it only provided here for comparison purposes.
Weighted Average
56.66%
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 |
|---|---|---|---|
| Christina | 3/10 | 339 days | 100% |
| Deb Z | 2/10 | 1376 days | 15% |
| Solvejg Bjerg | 9/10 | 3212 days | 4% |
| Jaroslav Kacmar | 7/10 | 3215 days | 4% |
| Fabian Probst | 7/10 | 3235 days | 4% |
| Jonas Neumann | 6/10 | 3245 days | 4% |
| Mark | 8/10 | 3252 days | 4% |
| Alicia Speisekorn-Gil | 10/10 | 3297 days | 4% |
| Marc Perales | 3/10 | 3299 days | 2% |
| Laura Leoekloek | 8/10 | 3324 days | 4% |
| Stephan Ophelders | 6/10 | 3566 days | 3% |
| Ross Clark | 9/10 | 3572 days | 3% |
| Anna Jungclaus | 4/10 | 3575 days | 2% |
| Paul and Astrid | 8/10 | 3579 days | 3% |
| Oliver Schatz | 6/10 | 3587 days | 3% |
| Nadja | 2/10 | 3587 days | 1% |
| Wil Goes | 4/10 | 3592 days | 2% |
| D Davey | 9/10 | 3594 days | 3% |
| Sylvain Blanchet | 10/10 | 3600 days | 3% |
| Ral Pritchard | 5/10 | 3611 days | 2% |
| Sue Strebe | 6/10 | 3951 days | 1% |
| Helen Parsons | 6/10 | 3957 days | 1% |
| Ann Wilson | 7/10 | 4284 days | 0% |
| Reto | 4/10 | 4312 days | 0% |
| Glyn and Karen Farlow | 7/10 | 4314 days | 0% |
| Marius Hoffmann | 6/10 | 4315 days | 0% |
| Lena Jensen | 3/10 | 4333 days | 0% |
| Jesper Andersen | 4/10 | 4333 days | 0% |
| David Embling | 5/10 | 4334 days | 0% |
| Angela Neville | 8/10 | 4334 days | 0% |
| Derek Knight | 8/10 | 4340 days | 0% |
| Jacqui Knight | 8/10 | 4340 days | 0% |
| Elizabeth | 7/10 | 4359 days | 0% |
| Roy Driehuis | 7/10 | 4359 days | 0% |
| AusCampa | 3/10 | 4602 days | 1% |
| Andrew Grimes | 7/10 | 4658 days | 2% |
| Lynda Quartay | 9/10 | 4658 days | 2% |
| Julian Roots | 8/10 | 4663 days | 2% |
| Lorna and Seb | 6/10 | 4666 days | 2% |
| Mary Neustroski | 5/10 | 4677 days | 1% |
| Sam Bensemann | 10/10 | 4722 days | 2% |
| Mike Edwards | 8/10 | 4738 days | 2% |
| Annie | 5/10 | 4746 days | 1% |
| Dio | 6/10 | 4755 days | 2% |
| Michel Vourbraak | 8/10 | 4769 days | 2% |
| Evelyn Mackie | 10/10 | 5021 days | 2% |
| Matthias Angela | 6/10 | 5022 days | 2% |
| Jeltje | 5/10 | 5037 days | 1% |
| Baas | 7/10 | 5037 days | 2% |
| Josef | 1/10 | 5038 days | 1% |
| Sylvia & Garrit | 1/10 | 5042 days | 1% |
| Marco Scheiber | 8/10 | 5051 days | 2% |
| Volker Neumeyer | 9/10 | 5052 days | 2% |
| Anna | 2/10 | 5055 days | 1% |
| Duncan & Ellen | 5/10 | 5073 days | 1% |
| KandJ | 1/10 | 5088 days | 1% |
| Josh | 7/10 | 5131 days | 2% |
| Ray Coombe | 8/10 | 5131 days | 2% |
| Mr & Mrs Palmer | 7/10 | 5380 days | 2% |
| John Stokes | 8/10 | 5382 days | 2% |
| Julia | 2/10 | 5384 days | 1% |
| Juerg & Denise Zuesli | 3/10 | 5387 days | 1% |
| B Kleven | 7/10 | 5388 days | 2% |
| Anita Tonks | 4/10 | 5393 days | 1% |
| Carolin Ranner | 5/10 | 5395 days | 1% |
| Kasten | 4/10 | 5396 days | 1% |
| omlo | 3/10 | 5408 days | 1% |
| David Heads | 8/10 | 5409 days | 2% |
| Irene and Thib Schneider | 8/10 | 5410 days | 2% |
| Bahner | 10/10 | 5410 days | 2% |
| Teum and Orselien | 5/10 | 5410 days | 1% |
| Daniel Bogdanowitsch | 10/10 | 5413 days | 2% |
| Julia | 7/10 | 5414 days | 2% |
| Bas Geerts | 6/10 | 5415 days | 2% |
| Barbara | 7/10 | 5415 days | 2% |
| JohnHaestad | 7/10 | 5422 days | 2% |
| Grant | 8/10 | 5680 days | 2% |
| Quin | 8/10 | 5728 days | 2% |
| Kaddi & Grego | 1/10 | 5760 days | 1% |
| Thomas & Jucki | 8/10 | 5762 days | 2% |
| Rolf X | 4/10 | 5769 days | 1% |
| Gary Ebrig | 7/10 | 5772 days | 2% |
| J Kempeneers | 4/10 | 5773 days | 1% |
| Loleit | 1/10 | 5780 days | 1% |
| vanijzendoor | 8/10 | 5782 days | 2% |
| Sinjc Grude | 3/10 | 5784 days | 1% |
| Jeremy & Sarah Rind | 8/10 | 5786 days | 2% |
| Hugli | 9/10 | 5792 days | 2% |
| W David R Thomas | 5/10 | 5792 days | 1% |
| Beute Jacob | 7/10 | 5800 days | 2% |
| J P Paulvast | 8/10 | 5801 days | 2% |
| Beute Hjel | 8/10 | 5803 days | 2% |
| middendorp | 8/10 | 5833 days | 2% |
| Linda Coats | 10/10 | 5834 days | 2% |
| johnma | 10/10 | 5838 days | 2% |
| sels | 3/10 | 5849 days | 1% |
| Anna | 6/10 | 5879 days | 2% |
| alanvn | 3/10 | 5962 days | 1% |
| richards1 | 2/10 | 5974 days | 1% |
| KarinS | 5/10 | 6086 days | 1% |
| DirkGermany | 10/10 | 6088 days | 2% |
| KatrinS | 1/10 | 6105 days | 1% |
| Lucas | 7/10 | 6109 days | 2% |
| Anna Hansson | 10/10 | 6110 days | 2% |
| Anna Hansson | 10/10 | 6110 days | 2% |
| Sara Hansson | 9/10 | 6110 days | 2% |
| BevanLisa | 7/10 | 6110 days | 2% |
| Hans | 6/10 | 6110 days | 2% |
| OdiliaF | 10/10 | 6112 days | 2% |
| Mary | 9/10 | 6117 days | 2% |
| JetteG | 5/10 | 6127 days | 1% |
| VacherD | 8/10 | 6128 days | 2% |
| Adi | 10/10 | 6141 days | 2% |
| Philippa | 9/10 | 6141 days | 2% |
| De Vries | 7/10 | 6161 days | 2% |
| Debbie Mossman | 6/10 | 6168 days | 2% |
| nsmith | 9/10 | 6245 days | 2% |
| Gray | 10/10 | 6328 days | 2% |
| fgregory | 10/10 | 6355 days | 2% |
| Stewart | 6/10 | 6476 days | 2% |
| Sara Rütten | 4/10 | 6495 days | 1% |
| Sabine Feiner | 10/10 | 6498 days | 2% |
| Roger & Margaret | 8/10 | 6507 days | 2% |
| Gill O'Connor | 8/10 | 6509 days | 2% |
| Kevin | 9/10 | 6578 days | 2% |
| Floren | 8/10 | 6582 days | 2% |
| Rene Schotvanger | 4/10 | 6695 days | 1% |
| ranker_41 | 5/10 | 6695 days | 1% |
| Kate | 3/10 | 6851 days | 1% |
| Bernhard | 8/10 | 6867 days | 2% |
| Walburg | 8/10 | 6870 days | 2% |
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 Buller Gorge Swingbridge experience has plenty of reviews and does not meet the criteria for any adjustment.
Recent Reviews Adjustment
-4.07% Adjustment
There may be an adjustment if this experience hasn't received any reviews within the last 42 days. However the Buller Gorge Swingbridge 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 Buller Gorge Swingbridge experience has been adjusted for 200 days. Adjustments are according to the following table.
| Days | Adjustment |
|---|---|
| … | … |
| 197 | -4.01% |
| 198 | -4.03% |
| 199 | -4.05% |
| 200 | -4.07% |
| 201 | -4.09% |
| 202 | -4.11% |
| 203 | -4.13% |
| … | … |
Balancing Adjustment
19.95% 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
73%
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.