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
57.42%
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 | 414 days | 100% |
| Deb Z | 2/10 | 1451 days | 12% |
| Solvejg Bjerg | 9/10 | 3287 days | 4% |
| Jaroslav Kacmar | 7/10 | 3290 days | 4% |
| Fabian Probst | 7/10 | 3310 days | 4% |
| Jonas Neumann | 6/10 | 3320 days | 4% |
| Mark | 8/10 | 3327 days | 4% |
| Alicia Speisekorn-Gil | 10/10 | 3372 days | 4% |
| Marc Perales | 3/10 | 3374 days | 2% |
| Laura Leoekloek | 8/10 | 3399 days | 4% |
| Stephan Ophelders | 6/10 | 3641 days | 2% |
| Ross Clark | 9/10 | 3647 days | 3% |
| Anna Jungclaus | 4/10 | 3650 days | 2% |
| Paul and Astrid | 8/10 | 3654 days | 3% |
| Oliver Schatz | 6/10 | 3662 days | 2% |
| Nadja | 2/10 | 3662 days | 1% |
| Wil Goes | 4/10 | 3667 days | 2% |
| D Davey | 9/10 | 3669 days | 3% |
| Sylvain Blanchet | 10/10 | 3675 days | 3% |
| Ral Pritchard | 5/10 | 3686 days | 2% |
| Sue Strebe | 6/10 | 4026 days | 1% |
| Helen Parsons | 6/10 | 4032 days | 1% |
| Ann Wilson | 7/10 | 4359 days | 0% |
| Reto | 4/10 | 4387 days | 1% |
| Glyn and Karen Farlow | 7/10 | 4389 days | 2% |
| Marius Hoffmann | 6/10 | 4390 days | 2% |
| Lena Jensen | 3/10 | 4408 days | 1% |
| Jesper Andersen | 4/10 | 4408 days | 1% |
| David Embling | 5/10 | 4409 days | 1% |
| Angela Neville | 8/10 | 4409 days | 2% |
| Derek Knight | 8/10 | 4415 days | 2% |
| Jacqui Knight | 8/10 | 4415 days | 2% |
| Elizabeth | 7/10 | 4434 days | 2% |
| Roy Driehuis | 7/10 | 4434 days | 2% |
| AusCampa | 3/10 | 4677 days | 1% |
| Andrew Grimes | 7/10 | 4733 days | 2% |
| Lynda Quartay | 9/10 | 4733 days | 2% |
| Julian Roots | 8/10 | 4738 days | 2% |
| Lorna and Seb | 6/10 | 4741 days | 2% |
| Mary Neustroski | 5/10 | 4752 days | 1% |
| Sam Bensemann | 10/10 | 4797 days | 2% |
| Mike Edwards | 8/10 | 4813 days | 2% |
| Annie | 5/10 | 4821 days | 1% |
| Dio | 6/10 | 4830 days | 2% |
| Michel Vourbraak | 8/10 | 4844 days | 2% |
| Evelyn Mackie | 10/10 | 5096 days | 2% |
| Matthias Angela | 6/10 | 5097 days | 2% |
| Jeltje | 5/10 | 5112 days | 1% |
| Baas | 7/10 | 5112 days | 2% |
| Josef | 1/10 | 5113 days | 1% |
| Sylvia & Garrit | 1/10 | 5117 days | 1% |
| Marco Scheiber | 8/10 | 5126 days | 2% |
| Volker Neumeyer | 9/10 | 5127 days | 2% |
| Anna | 2/10 | 5130 days | 1% |
| Duncan & Ellen | 5/10 | 5148 days | 1% |
| KandJ | 1/10 | 5163 days | 1% |
| Josh | 7/10 | 5206 days | 2% |
| Ray Coombe | 8/10 | 5206 days | 2% |
| Mr & Mrs Palmer | 7/10 | 5455 days | 2% |
| John Stokes | 8/10 | 5457 days | 2% |
| Julia | 2/10 | 5459 days | 1% |
| Juerg & Denise Zuesli | 3/10 | 5462 days | 1% |
| B Kleven | 7/10 | 5463 days | 2% |
| Anita Tonks | 4/10 | 5468 days | 1% |
| Carolin Ranner | 5/10 | 5470 days | 1% |
| Kasten | 4/10 | 5471 days | 1% |
| omlo | 3/10 | 5483 days | 1% |
| David Heads | 8/10 | 5484 days | 2% |
| Irene and Thib Schneider | 8/10 | 5485 days | 2% |
| Bahner | 10/10 | 5485 days | 2% |
| Teum and Orselien | 5/10 | 5485 days | 1% |
| Daniel Bogdanowitsch | 10/10 | 5488 days | 2% |
| Julia | 7/10 | 5489 days | 2% |
| Bas Geerts | 6/10 | 5490 days | 2% |
| Barbara | 7/10 | 5490 days | 2% |
| JohnHaestad | 7/10 | 5497 days | 2% |
| Grant | 8/10 | 5755 days | 2% |
| Quin | 8/10 | 5803 days | 2% |
| Kaddi & Grego | 1/10 | 5835 days | 1% |
| Thomas & Jucki | 8/10 | 5837 days | 2% |
| Rolf X | 4/10 | 5844 days | 1% |
| Gary Ebrig | 7/10 | 5847 days | 2% |
| J Kempeneers | 4/10 | 5848 days | 1% |
| Loleit | 1/10 | 5855 days | 1% |
| vanijzendoor | 8/10 | 5857 days | 2% |
| Sinjc Grude | 3/10 | 5859 days | 1% |
| Jeremy & Sarah Rind | 8/10 | 5861 days | 2% |
| Hugli | 9/10 | 5867 days | 2% |
| W David R Thomas | 5/10 | 5867 days | 1% |
| Beute Jacob | 7/10 | 5875 days | 2% |
| J P Paulvast | 8/10 | 5876 days | 2% |
| Beute Hjel | 8/10 | 5878 days | 2% |
| middendorp | 8/10 | 5908 days | 2% |
| Linda Coats | 10/10 | 5909 days | 2% |
| johnma | 10/10 | 5913 days | 2% |
| sels | 3/10 | 5924 days | 1% |
| Anna | 6/10 | 5954 days | 2% |
| alanvn | 3/10 | 6037 days | 1% |
| richards1 | 2/10 | 6049 days | 1% |
| KarinS | 5/10 | 6161 days | 1% |
| DirkGermany | 10/10 | 6163 days | 2% |
| KatrinS | 1/10 | 6180 days | 1% |
| Lucas | 7/10 | 6184 days | 2% |
| Anna Hansson | 10/10 | 6185 days | 2% |
| Anna Hansson | 10/10 | 6185 days | 2% |
| Sara Hansson | 9/10 | 6185 days | 2% |
| BevanLisa | 7/10 | 6185 days | 2% |
| Hans | 6/10 | 6185 days | 2% |
| OdiliaF | 10/10 | 6187 days | 2% |
| Mary | 9/10 | 6192 days | 2% |
| JetteG | 5/10 | 6202 days | 1% |
| VacherD | 8/10 | 6203 days | 2% |
| Adi | 10/10 | 6216 days | 2% |
| Philippa | 9/10 | 6216 days | 2% |
| De Vries | 7/10 | 6236 days | 2% |
| Debbie Mossman | 6/10 | 6242 days | 2% |
| nsmith | 9/10 | 6320 days | 2% |
| Gray | 10/10 | 6403 days | 2% |
| fgregory | 10/10 | 6430 days | 2% |
| Stewart | 6/10 | 6551 days | 2% |
| Sara Rütten | 4/10 | 6570 days | 1% |
| Sabine Feiner | 10/10 | 6573 days | 2% |
| Roger & Margaret | 8/10 | 6582 days | 2% |
| Gill O'Connor | 8/10 | 6584 days | 2% |
| Kevin | 9/10 | 6653 days | 2% |
| Floren | 8/10 | 6657 days | 2% |
| Rene Schotvanger | 4/10 | 6770 days | 1% |
| ranker_41 | 5/10 | 6770 days | 1% |
| Kate | 3/10 | 6926 days | 1% |
| Bernhard | 8/10 | 6942 days | 2% |
| Walburg | 8/10 | 6945 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
-4.15% Adjustment
There may be an adjustment if this experience hasn't received any reviews within the last 53 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 | -4.08% |
| 198 | -4.10% |
| 199 | -4.13% |
| 200 | -4.15% |
| 201 | -4.17% |
| 202 | -4.19% |
| 203 | -4.21% |
| … | … |
Balancing Adjustment
19.39% 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.