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.
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Buller Gorge Swingbridge
Valid Reviews
132 Valid Reviews
The Buller Gorge Swingbridge experience has a total of 134 reviews. There are 132 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 132 valid reviews:
| Rating | Count | Percentage | |
|---|---|---|---|
| 10/10 | 16 |
|
12% |
| 9/10 | 11 |
|
8% |
| 8/10 | 28 |
|
21% |
| 7/10 | 19 |
|
14% |
| 6/10 | 14 |
|
11% |
| 5/10 | 12 |
|
9% |
| 4/10 | 10 |
|
8% |
| 3/10 | 10 |
|
8% |
| 2/10 | 6 |
|
5% |
| 1/10 | 6 |
|
5% |
64.24% Average
The raw data average (mean) for all the Buller Gorge Swingbridge valid reviews is 64.24% and is based on 132 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
119 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 132 valid reviews, the experience has 119 face-to-face reviews collected during interviews by our team.
Below is the distribution of ratings for the 119 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 | 5 |
|
4% |
| 1/10 | 5 |
|
4% |
65.21% Average
The raw data average (mean) for all the Buller Gorge Swingbridge face-to-face reviews is 65.21% and is based on 119 face-to-face reviews. This value is not used to calculate the ranking score and it only provided here for comparison purposes.
Weighted Average
55.64%
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 | 96 days | 100% |
| Deb Z | 2/10 | 1133 days | 27% |
| Solvejg Bjerg | 9/10 | 2969 days | 5% |
| Jaroslav Kacmar | 7/10 | 2972 days | 5% |
| Fabian Probst | 7/10 | 2992 days | 5% |
| Jonas Neumann | 6/10 | 3002 days | 4% |
| Mark | 8/10 | 3009 days | 5% |
| Alicia Speisekorn-Gil | 10/10 | 3054 days | 5% |
| Marc Perales | 3/10 | 3056 days | 3% |
| Laura Leoekloek | 8/10 | 3081 days | 5% |
| Stephan Ophelders | 6/10 | 3323 days | 3% |
| Ross Clark | 9/10 | 3329 days | 4% |
| Anna Jungclaus | 4/10 | 3332 days | 2% |
| Paul and Astrid | 8/10 | 3336 days | 4% |
| Oliver Schatz | 6/10 | 3344 days | 3% |
| Nadja | 2/10 | 3344 days | 2% |
| Wil Goes | 4/10 | 3349 days | 2% |
| D Davey | 9/10 | 3351 days | 4% |
| Sylvain Blanchet | 10/10 | 3357 days | 4% |
| Ral Pritchard | 5/10 | 3368 days | 3% |
| Sue Strebe | 6/10 | 3708 days | 2% |
| Helen Parsons | 6/10 | 3714 days | 2% |
| Ann Wilson | 7/10 | 4041 days | 1% |
| Reto | 4/10 | 4069 days | 1% |
| Tiit Pullerits | 2/10 | 4070 days | 0% |
| Glyn and Karen Farlow | 7/10 | 4071 days | 1% |
| Marius Hoffmann | 6/10 | 4072 days | 1% |
| Lena Jensen | 3/10 | 4090 days | 1% |
| Jesper Andersen | 4/10 | 4090 days | 1% |
| David Embling | 5/10 | 4091 days | 1% |
| Angela Neville | 8/10 | 4091 days | 1% |
| Derek Knight | 8/10 | 4097 days | 1% |
| Jacqui Knight | 8/10 | 4097 days | 1% |
| Elizabeth | 7/10 | 4116 days | 1% |
| Roy Driehuis | 7/10 | 4116 days | 1% |
| AusCampa | 3/10 | 4359 days | 0% |
| Andrew Grimes | 7/10 | 4415 days | 2% |
| Lynda Quartay | 9/10 | 4415 days | 2% |
| Julian Roots | 8/10 | 4420 days | 2% |
| Lorna and Seb | 6/10 | 4423 days | 2% |
| Mary Neustroski | 5/10 | 4434 days | 1% |
| Sam Bensemann | 10/10 | 4479 days | 2% |
| Mike Edwards | 8/10 | 4495 days | 2% |
| Annie | 5/10 | 4503 days | 1% |
| Dio | 6/10 | 4512 days | 2% |
| Michel Vourbraak | 8/10 | 4526 days | 2% |
| Evelyn Mackie | 10/10 | 4778 days | 2% |
| Matthias Angela | 6/10 | 4779 days | 2% |
| Jeltje | 5/10 | 4794 days | 1% |
| Baas | 7/10 | 4794 days | 2% |
| Josef | 1/10 | 4795 days | 1% |
| Sylvia & Garrit | 1/10 | 4799 days | 1% |
| Marco Scheiber | 8/10 | 4808 days | 2% |
| Volker Neumeyer | 9/10 | 4809 days | 2% |
| Anna | 2/10 | 4812 days | 1% |
| Duncan & Ellen | 5/10 | 4830 days | 1% |
| KandJ | 1/10 | 4845 days | 1% |
| Josh | 7/10 | 4888 days | 2% |
| Ray Coombe | 8/10 | 4888 days | 2% |
| Mr & Mrs Palmer | 7/10 | 5137 days | 2% |
| John Stokes | 8/10 | 5139 days | 2% |
| Julia | 2/10 | 5141 days | 1% |
| Juerg & Denise Zuesli | 3/10 | 5144 days | 1% |
| B Kleven | 7/10 | 5145 days | 2% |
| Anita Tonks | 4/10 | 5150 days | 1% |
| Carolin Ranner | 5/10 | 5152 days | 1% |
| Kasten | 4/10 | 5153 days | 1% |
| omlo | 3/10 | 5165 days | 1% |
| David Heads | 8/10 | 5166 days | 2% |
| Irene and Thib Schneider | 8/10 | 5167 days | 2% |
| Bahner | 10/10 | 5167 days | 2% |
| Teum and Orselien | 5/10 | 5167 days | 1% |
| Daniel Bogdanowitsch | 10/10 | 5170 days | 2% |
| Julia | 7/10 | 5171 days | 2% |
| Bas Geerts | 6/10 | 5172 days | 2% |
| Barbara | 7/10 | 5172 days | 2% |
| JohnHaestad | 7/10 | 5179 days | 2% |
| Grant | 8/10 | 5437 days | 2% |
| Quin | 8/10 | 5485 days | 2% |
| Kaddi & Grego | 1/10 | 5517 days | 1% |
| Thomas & Jucki | 8/10 | 5519 days | 2% |
| Rolf X | 4/10 | 5526 days | 1% |
| Gary Ebrig | 7/10 | 5529 days | 2% |
| J Kempeneers | 4/10 | 5530 days | 1% |
| Loleit | 1/10 | 5537 days | 1% |
| vanijzendoor | 8/10 | 5539 days | 2% |
| Sinjc Grude | 3/10 | 5541 days | 1% |
| Jeremy & Sarah Rind | 8/10 | 5543 days | 2% |
| Hugli | 9/10 | 5549 days | 2% |
| W David R Thomas | 5/10 | 5549 days | 1% |
| Beute Jacob | 7/10 | 5557 days | 2% |
| J P Paulvast | 8/10 | 5558 days | 2% |
| Beute Hjel | 8/10 | 5560 days | 2% |
| middendorp | 8/10 | 5590 days | 2% |
| Linda Coats | 10/10 | 5591 days | 2% |
| johnma | 10/10 | 5595 days | 2% |
| sels | 3/10 | 5606 days | 1% |
| Anna | 6/10 | 5636 days | 2% |
| alanvn | 3/10 | 5719 days | 1% |
| richards1 | 2/10 | 5731 days | 1% |
| KarinS | 5/10 | 5843 days | 1% |
| DirkGermany | 10/10 | 5845 days | 2% |
| KatrinS | 1/10 | 5862 days | 1% |
| Lucas | 7/10 | 5866 days | 2% |
| Anna Hansson | 10/10 | 5867 days | 2% |
| Anna Hansson | 10/10 | 5867 days | 2% |
| Sara Hansson | 9/10 | 5867 days | 2% |
| BevanLisa | 7/10 | 5867 days | 2% |
| Hans | 6/10 | 5867 days | 2% |
| OdiliaF | 10/10 | 5869 days | 2% |
| Mary | 9/10 | 5874 days | 2% |
| JetteG | 5/10 | 5884 days | 1% |
| VacherD | 8/10 | 5885 days | 2% |
| Adi | 10/10 | 5898 days | 2% |
| Philippa | 9/10 | 5898 days | 2% |
| De Vries | 7/10 | 5918 days | 2% |
| Debbie Mossman | 6/10 | 5925 days | 2% |
| nsmith | 9/10 | 6002 days | 2% |
| Gray | 10/10 | 6086 days | 2% |
| fgregory | 10/10 | 6113 days | 2% |
| Stewart | 6/10 | 6233 days | 2% |
| Sara Rütten | 4/10 | 6252 days | 1% |
| Sabine Feiner | 10/10 | 6255 days | 2% |
| Roger & Margaret | 8/10 | 6264 days | 2% |
| Gill O'Connor | 8/10 | 6266 days | 2% |
| Kevin | 9/10 | 6335 days | 2% |
| Floren | 8/10 | 6339 days | 2% |
| Rene Schotvanger | 4/10 | 6452 days | 1% |
| ranker_41 | 5/10 | 6452 days | 1% |
| Kate | 3/10 | 6608 days | 1% |
| Bernhard | 8/10 | 6624 days | 2% |
| Walburg | 8/10 | 6627 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
-1.56% Adjustment
There may be an adjustment if this experience hasn't received any reviews within the last 62 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 86 days. Adjustments are according to the following table.
| Days | Adjustment |
|---|---|
| … | … |
| 83 | -1.50% |
| 84 | -1.52% |
| 85 | -1.54% |
| 86 | -1.56% |
| 87 | -1.58% |
| 88 | -1.60% |
| 89 | -1.61% |
| … | … |
Balancing Adjustment
18.74% 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.