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 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 | 338 days | 100% |
| Deb Z | 2/10 | 1375 days | 15% |
| Solvejg Bjerg | 9/10 | 3211 days | 4% |
| Jaroslav Kacmar | 7/10 | 3214 days | 4% |
| Fabian Probst | 7/10 | 3234 days | 4% |
| Jonas Neumann | 6/10 | 3244 days | 4% |
| Mark | 8/10 | 3251 days | 4% |
| Alicia Speisekorn-Gil | 10/10 | 3296 days | 4% |
| Marc Perales | 3/10 | 3298 days | 2% |
| Laura Leoekloek | 8/10 | 3323 days | 4% |
| Stephan Ophelders | 6/10 | 3565 days | 3% |
| Ross Clark | 9/10 | 3571 days | 3% |
| Anna Jungclaus | 4/10 | 3574 days | 2% |
| Paul and Astrid | 8/10 | 3578 days | 3% |
| Oliver Schatz | 6/10 | 3586 days | 3% |
| Nadja | 2/10 | 3586 days | 1% |
| Wil Goes | 4/10 | 3591 days | 2% |
| D Davey | 9/10 | 3593 days | 3% |
| Sylvain Blanchet | 10/10 | 3599 days | 3% |
| Ral Pritchard | 5/10 | 3610 days | 2% |
| Sue Strebe | 6/10 | 3950 days | 1% |
| Helen Parsons | 6/10 | 3956 days | 1% |
| Ann Wilson | 7/10 | 4283 days | 0% |
| Reto | 4/10 | 4311 days | 0% |
| Glyn and Karen Farlow | 7/10 | 4313 days | 0% |
| Marius Hoffmann | 6/10 | 4314 days | 0% |
| Lena Jensen | 3/10 | 4332 days | 0% |
| Jesper Andersen | 4/10 | 4332 days | 0% |
| David Embling | 5/10 | 4333 days | 0% |
| Angela Neville | 8/10 | 4333 days | 0% |
| Derek Knight | 8/10 | 4339 days | 0% |
| Jacqui Knight | 8/10 | 4339 days | 0% |
| Elizabeth | 7/10 | 4358 days | 0% |
| Roy Driehuis | 7/10 | 4358 days | 0% |
| AusCampa | 3/10 | 4601 days | 1% |
| Andrew Grimes | 7/10 | 4657 days | 2% |
| Lynda Quartay | 9/10 | 4657 days | 2% |
| Julian Roots | 8/10 | 4662 days | 2% |
| Lorna and Seb | 6/10 | 4665 days | 2% |
| Mary Neustroski | 5/10 | 4676 days | 1% |
| Sam Bensemann | 10/10 | 4721 days | 2% |
| Mike Edwards | 8/10 | 4737 days | 2% |
| Annie | 5/10 | 4745 days | 1% |
| Dio | 6/10 | 4754 days | 2% |
| Michel Vourbraak | 8/10 | 4768 days | 2% |
| Evelyn Mackie | 10/10 | 5020 days | 2% |
| Matthias Angela | 6/10 | 5021 days | 2% |
| Jeltje | 5/10 | 5036 days | 1% |
| Baas | 7/10 | 5036 days | 2% |
| Josef | 1/10 | 5037 days | 1% |
| Sylvia & Garrit | 1/10 | 5041 days | 1% |
| Marco Scheiber | 8/10 | 5050 days | 2% |
| Volker Neumeyer | 9/10 | 5051 days | 2% |
| Anna | 2/10 | 5054 days | 1% |
| Duncan & Ellen | 5/10 | 5072 days | 1% |
| KandJ | 1/10 | 5087 days | 1% |
| Josh | 7/10 | 5130 days | 2% |
| Ray Coombe | 8/10 | 5130 days | 2% |
| Mr & Mrs Palmer | 7/10 | 5379 days | 2% |
| John Stokes | 8/10 | 5381 days | 2% |
| Julia | 2/10 | 5383 days | 1% |
| Juerg & Denise Zuesli | 3/10 | 5386 days | 1% |
| B Kleven | 7/10 | 5387 days | 2% |
| Anita Tonks | 4/10 | 5392 days | 1% |
| Carolin Ranner | 5/10 | 5394 days | 1% |
| Kasten | 4/10 | 5395 days | 1% |
| omlo | 3/10 | 5407 days | 1% |
| David Heads | 8/10 | 5408 days | 2% |
| Irene and Thib Schneider | 8/10 | 5409 days | 2% |
| Bahner | 10/10 | 5409 days | 2% |
| Teum and Orselien | 5/10 | 5409 days | 1% |
| Daniel Bogdanowitsch | 10/10 | 5412 days | 2% |
| Julia | 7/10 | 5413 days | 2% |
| Bas Geerts | 6/10 | 5414 days | 2% |
| Barbara | 7/10 | 5414 days | 2% |
| JohnHaestad | 7/10 | 5421 days | 2% |
| Grant | 8/10 | 5679 days | 2% |
| Quin | 8/10 | 5727 days | 2% |
| Kaddi & Grego | 1/10 | 5759 days | 1% |
| Thomas & Jucki | 8/10 | 5761 days | 2% |
| Rolf X | 4/10 | 5768 days | 1% |
| Gary Ebrig | 7/10 | 5771 days | 2% |
| J Kempeneers | 4/10 | 5772 days | 1% |
| Loleit | 1/10 | 5779 days | 1% |
| vanijzendoor | 8/10 | 5781 days | 2% |
| Sinjc Grude | 3/10 | 5783 days | 1% |
| Jeremy & Sarah Rind | 8/10 | 5785 days | 2% |
| Hugli | 9/10 | 5791 days | 2% |
| W David R Thomas | 5/10 | 5791 days | 1% |
| Beute Jacob | 7/10 | 5799 days | 2% |
| J P Paulvast | 8/10 | 5800 days | 2% |
| Beute Hjel | 8/10 | 5802 days | 2% |
| middendorp | 8/10 | 5832 days | 2% |
| Linda Coats | 10/10 | 5833 days | 2% |
| johnma | 10/10 | 5837 days | 2% |
| sels | 3/10 | 5848 days | 1% |
| Anna | 6/10 | 5878 days | 2% |
| alanvn | 3/10 | 5961 days | 1% |
| richards1 | 2/10 | 5973 days | 1% |
| KarinS | 5/10 | 6085 days | 1% |
| DirkGermany | 10/10 | 6087 days | 2% |
| KatrinS | 1/10 | 6104 days | 1% |
| Lucas | 7/10 | 6109 days | 2% |
| Anna Hansson | 10/10 | 6109 days | 2% |
| Anna Hansson | 10/10 | 6109 days | 2% |
| Sara Hansson | 9/10 | 6109 days | 2% |
| BevanLisa | 7/10 | 6109 days | 2% |
| Hans | 6/10 | 6109 days | 2% |
| OdiliaF | 10/10 | 6111 days | 2% |
| Mary | 9/10 | 6116 days | 2% |
| JetteG | 5/10 | 6126 days | 1% |
| VacherD | 8/10 | 6127 days | 2% |
| Adi | 10/10 | 6141 days | 2% |
| Philippa | 9/10 | 6141 days | 2% |
| De Vries | 7/10 | 6160 days | 2% |
| Debbie Mossman | 6/10 | 6167 days | 2% |
| nsmith | 9/10 | 6245 days | 2% |
| Gray | 10/10 | 6328 days | 2% |
| fgregory | 10/10 | 6355 days | 2% |
| Stewart | 6/10 | 6475 days | 2% |
| Sara Rütten | 4/10 | 6494 days | 1% |
| Sabine Feiner | 10/10 | 6497 days | 2% |
| Roger & Margaret | 8/10 | 6506 days | 2% |
| Gill O'Connor | 8/10 | 6508 days | 2% |
| Kevin | 9/10 | 6577 days | 2% |
| Floren | 8/10 | 6581 days | 2% |
| Rene Schotvanger | 4/10 | 6694 days | 1% |
| ranker_41 | 5/10 | 6694 days | 1% |
| Kate | 3/10 | 6850 days | 1% |
| Bernhard | 8/10 | 6866 days | 2% |
| Walburg | 8/10 | 6869 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.