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 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
56.70%
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 | 349 days | 100% |
| Deb Z | 2/10 | 1386 days | 14% |
| Solvejg Bjerg | 9/10 | 3222 days | 4% |
| Jaroslav Kacmar | 7/10 | 3225 days | 4% |
| Fabian Probst | 7/10 | 3245 days | 4% |
| Jonas Neumann | 6/10 | 3255 days | 4% |
| Mark | 8/10 | 3262 days | 4% |
| Alicia Speisekorn-Gil | 10/10 | 3307 days | 4% |
| Marc Perales | 3/10 | 3309 days | 2% |
| Laura Leoekloek | 8/10 | 3334 days | 4% |
| Stephan Ophelders | 6/10 | 3576 days | 3% |
| Ross Clark | 9/10 | 3582 days | 3% |
| Anna Jungclaus | 4/10 | 3585 days | 2% |
| Paul and Astrid | 8/10 | 3589 days | 3% |
| Oliver Schatz | 6/10 | 3597 days | 3% |
| Nadja | 2/10 | 3597 days | 1% |
| Wil Goes | 4/10 | 3602 days | 2% |
| D Davey | 9/10 | 3604 days | 3% |
| Sylvain Blanchet | 10/10 | 3610 days | 3% |
| Ral Pritchard | 5/10 | 3621 days | 2% |
| Sue Strebe | 6/10 | 3961 days | 1% |
| Helen Parsons | 6/10 | 3967 days | 1% |
| Ann Wilson | 7/10 | 4294 days | 0% |
| Reto | 4/10 | 4322 days | 0% |
| Glyn and Karen Farlow | 7/10 | 4324 days | 0% |
| Marius Hoffmann | 6/10 | 4325 days | 0% |
| Lena Jensen | 3/10 | 4343 days | 0% |
| Jesper Andersen | 4/10 | 4343 days | 0% |
| David Embling | 5/10 | 4344 days | 0% |
| Angela Neville | 8/10 | 4344 days | 0% |
| Derek Knight | 8/10 | 4350 days | 0% |
| Jacqui Knight | 8/10 | 4350 days | 0% |
| Elizabeth | 7/10 | 4369 days | 0% |
| Roy Driehuis | 7/10 | 4369 days | 0% |
| AusCampa | 3/10 | 4612 days | 1% |
| Andrew Grimes | 7/10 | 4668 days | 2% |
| Lynda Quartay | 9/10 | 4668 days | 2% |
| Julian Roots | 8/10 | 4673 days | 2% |
| Lorna and Seb | 6/10 | 4676 days | 2% |
| Mary Neustroski | 5/10 | 4687 days | 1% |
| Sam Bensemann | 10/10 | 4732 days | 2% |
| Mike Edwards | 8/10 | 4748 days | 2% |
| Annie | 5/10 | 4756 days | 1% |
| Dio | 6/10 | 4765 days | 2% |
| Michel Vourbraak | 8/10 | 4779 days | 2% |
| Evelyn Mackie | 10/10 | 5031 days | 2% |
| Matthias Angela | 6/10 | 5032 days | 2% |
| Jeltje | 5/10 | 5047 days | 1% |
| Baas | 7/10 | 5047 days | 2% |
| Josef | 1/10 | 5048 days | 1% |
| Sylvia & Garrit | 1/10 | 5052 days | 1% |
| Marco Scheiber | 8/10 | 5061 days | 2% |
| Volker Neumeyer | 9/10 | 5062 days | 2% |
| Anna | 2/10 | 5065 days | 1% |
| Duncan & Ellen | 5/10 | 5083 days | 1% |
| KandJ | 1/10 | 5098 days | 1% |
| Josh | 7/10 | 5141 days | 2% |
| Ray Coombe | 8/10 | 5141 days | 2% |
| Mr & Mrs Palmer | 7/10 | 5390 days | 2% |
| John Stokes | 8/10 | 5392 days | 2% |
| Julia | 2/10 | 5394 days | 1% |
| Juerg & Denise Zuesli | 3/10 | 5397 days | 1% |
| B Kleven | 7/10 | 5398 days | 2% |
| Anita Tonks | 4/10 | 5403 days | 1% |
| Carolin Ranner | 5/10 | 5405 days | 1% |
| Kasten | 4/10 | 5406 days | 1% |
| omlo | 3/10 | 5418 days | 1% |
| David Heads | 8/10 | 5419 days | 2% |
| Irene and Thib Schneider | 8/10 | 5420 days | 2% |
| Bahner | 10/10 | 5420 days | 2% |
| Teum and Orselien | 5/10 | 5420 days | 1% |
| Daniel Bogdanowitsch | 10/10 | 5423 days | 2% |
| Julia | 7/10 | 5424 days | 2% |
| Bas Geerts | 6/10 | 5425 days | 2% |
| Barbara | 7/10 | 5425 days | 2% |
| JohnHaestad | 7/10 | 5432 days | 2% |
| Grant | 8/10 | 5690 days | 2% |
| Quin | 8/10 | 5738 days | 2% |
| Kaddi & Grego | 1/10 | 5770 days | 1% |
| Thomas & Jucki | 8/10 | 5772 days | 2% |
| Rolf X | 4/10 | 5779 days | 1% |
| Gary Ebrig | 7/10 | 5782 days | 2% |
| J Kempeneers | 4/10 | 5783 days | 1% |
| Loleit | 1/10 | 5790 days | 1% |
| vanijzendoor | 8/10 | 5792 days | 2% |
| Sinjc Grude | 3/10 | 5794 days | 1% |
| Jeremy & Sarah Rind | 8/10 | 5796 days | 2% |
| Hugli | 9/10 | 5802 days | 2% |
| W David R Thomas | 5/10 | 5802 days | 1% |
| Beute Jacob | 7/10 | 5810 days | 2% |
| J P Paulvast | 8/10 | 5811 days | 2% |
| Beute Hjel | 8/10 | 5813 days | 2% |
| middendorp | 8/10 | 5843 days | 2% |
| Linda Coats | 10/10 | 5844 days | 2% |
| johnma | 10/10 | 5848 days | 2% |
| sels | 3/10 | 5859 days | 1% |
| Anna | 6/10 | 5889 days | 2% |
| alanvn | 3/10 | 5972 days | 1% |
| richards1 | 2/10 | 5984 days | 1% |
| KarinS | 5/10 | 6096 days | 1% |
| DirkGermany | 10/10 | 6098 days | 2% |
| KatrinS | 1/10 | 6115 days | 1% |
| Lucas | 7/10 | 6119 days | 2% |
| Anna Hansson | 10/10 | 6120 days | 2% |
| Anna Hansson | 10/10 | 6120 days | 2% |
| Sara Hansson | 9/10 | 6120 days | 2% |
| BevanLisa | 7/10 | 6120 days | 2% |
| Hans | 6/10 | 6120 days | 2% |
| OdiliaF | 10/10 | 6122 days | 2% |
| Mary | 9/10 | 6127 days | 2% |
| JetteG | 5/10 | 6137 days | 1% |
| VacherD | 8/10 | 6138 days | 2% |
| Adi | 10/10 | 6151 days | 2% |
| Philippa | 9/10 | 6151 days | 2% |
| De Vries | 7/10 | 6171 days | 2% |
| Debbie Mossman | 6/10 | 6177 days | 2% |
| nsmith | 9/10 | 6255 days | 2% |
| Gray | 10/10 | 6338 days | 2% |
| fgregory | 10/10 | 6365 days | 2% |
| Stewart | 6/10 | 6486 days | 2% |
| Sara Rütten | 4/10 | 6505 days | 1% |
| Sabine Feiner | 10/10 | 6508 days | 2% |
| Roger & Margaret | 8/10 | 6517 days | 2% |
| Gill O'Connor | 8/10 | 6519 days | 2% |
| Kevin | 9/10 | 6588 days | 2% |
| Floren | 8/10 | 6592 days | 2% |
| Rene Schotvanger | 4/10 | 6705 days | 1% |
| ranker_41 | 5/10 | 6705 days | 1% |
| Kate | 3/10 | 6861 days | 1% |
| Bernhard | 8/10 | 6877 days | 2% |
| Walburg | 8/10 | 6880 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
-4.05% 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 | -3.99% |
| 198 | -4.01% |
| 199 | -4.03% |
| 200 | -4.05% |
| 201 | -4.08% |
| 202 | -4.10% |
| 203 | -4.12% |
| … | … |
Balancing Adjustment
19.90% 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.