G'day, 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 | 95 days | 100% |
| Deb Z | 2/10 | 1132 days | 27% |
| Solvejg Bjerg | 9/10 | 2968 days | 5% |
| Jaroslav Kacmar | 7/10 | 2971 days | 5% |
| Fabian Probst | 7/10 | 2991 days | 5% |
| Jonas Neumann | 6/10 | 3001 days | 4% |
| Mark | 8/10 | 3008 days | 5% |
| Alicia Speisekorn-Gil | 10/10 | 3053 days | 5% |
| Marc Perales | 3/10 | 3055 days | 3% |
| Laura Leoekloek | 8/10 | 3080 days | 5% |
| Stephan Ophelders | 6/10 | 3322 days | 3% |
| Ross Clark | 9/10 | 3328 days | 4% |
| Anna Jungclaus | 4/10 | 3331 days | 2% |
| Paul and Astrid | 8/10 | 3335 days | 4% |
| Oliver Schatz | 6/10 | 3343 days | 3% |
| Nadja | 2/10 | 3343 days | 2% |
| Wil Goes | 4/10 | 3348 days | 2% |
| D Davey | 9/10 | 3350 days | 4% |
| Sylvain Blanchet | 10/10 | 3356 days | 4% |
| Ral Pritchard | 5/10 | 3367 days | 3% |
| Sue Strebe | 6/10 | 3707 days | 2% |
| Helen Parsons | 6/10 | 3713 days | 2% |
| Ann Wilson | 7/10 | 4040 days | 1% |
| Reto | 4/10 | 4068 days | 1% |
| Tiit Pullerits | 2/10 | 4069 days | 0% |
| Glyn and Karen Farlow | 7/10 | 4070 days | 1% |
| Marius Hoffmann | 6/10 | 4071 days | 1% |
| Lena Jensen | 3/10 | 4089 days | 1% |
| Jesper Andersen | 4/10 | 4089 days | 1% |
| David Embling | 5/10 | 4090 days | 1% |
| Angela Neville | 8/10 | 4090 days | 1% |
| Derek Knight | 8/10 | 4096 days | 1% |
| Jacqui Knight | 8/10 | 4096 days | 1% |
| Elizabeth | 7/10 | 4115 days | 1% |
| Roy Driehuis | 7/10 | 4115 days | 1% |
| AusCampa | 3/10 | 4358 days | 0% |
| Andrew Grimes | 7/10 | 4414 days | 2% |
| Lynda Quartay | 9/10 | 4414 days | 2% |
| Julian Roots | 8/10 | 4419 days | 2% |
| Lorna and Seb | 6/10 | 4422 days | 2% |
| Mary Neustroski | 5/10 | 4433 days | 1% |
| Sam Bensemann | 10/10 | 4478 days | 2% |
| Mike Edwards | 8/10 | 4494 days | 2% |
| Annie | 5/10 | 4502 days | 1% |
| Dio | 6/10 | 4511 days | 2% |
| Michel Vourbraak | 8/10 | 4525 days | 2% |
| Evelyn Mackie | 10/10 | 4777 days | 2% |
| Matthias Angela | 6/10 | 4778 days | 2% |
| Jeltje | 5/10 | 4793 days | 1% |
| Baas | 7/10 | 4793 days | 2% |
| Josef | 1/10 | 4794 days | 1% |
| Sylvia & Garrit | 1/10 | 4798 days | 1% |
| Marco Scheiber | 8/10 | 4807 days | 2% |
| Volker Neumeyer | 9/10 | 4808 days | 2% |
| Anna | 2/10 | 4811 days | 1% |
| Duncan & Ellen | 5/10 | 4829 days | 1% |
| KandJ | 1/10 | 4844 days | 1% |
| Josh | 7/10 | 4887 days | 2% |
| Ray Coombe | 8/10 | 4887 days | 2% |
| Mr & Mrs Palmer | 7/10 | 5136 days | 2% |
| John Stokes | 8/10 | 5138 days | 2% |
| Julia | 2/10 | 5140 days | 1% |
| Juerg & Denise Zuesli | 3/10 | 5143 days | 1% |
| B Kleven | 7/10 | 5144 days | 2% |
| Anita Tonks | 4/10 | 5149 days | 1% |
| Carolin Ranner | 5/10 | 5151 days | 1% |
| Kasten | 4/10 | 5152 days | 1% |
| omlo | 3/10 | 5164 days | 1% |
| David Heads | 8/10 | 5165 days | 2% |
| Irene and Thib Schneider | 8/10 | 5166 days | 2% |
| Bahner | 10/10 | 5166 days | 2% |
| Teum and Orselien | 5/10 | 5166 days | 1% |
| Daniel Bogdanowitsch | 10/10 | 5169 days | 2% |
| Julia | 7/10 | 5170 days | 2% |
| Bas Geerts | 6/10 | 5171 days | 2% |
| Barbara | 7/10 | 5171 days | 2% |
| JohnHaestad | 7/10 | 5178 days | 2% |
| Grant | 8/10 | 5436 days | 2% |
| Quin | 8/10 | 5484 days | 2% |
| Kaddi & Grego | 1/10 | 5516 days | 1% |
| Thomas & Jucki | 8/10 | 5518 days | 2% |
| Rolf X | 4/10 | 5525 days | 1% |
| Gary Ebrig | 7/10 | 5528 days | 2% |
| J Kempeneers | 4/10 | 5529 days | 1% |
| Loleit | 1/10 | 5536 days | 1% |
| vanijzendoor | 8/10 | 5538 days | 2% |
| Sinjc Grude | 3/10 | 5540 days | 1% |
| Jeremy & Sarah Rind | 8/10 | 5542 days | 2% |
| Hugli | 9/10 | 5548 days | 2% |
| W David R Thomas | 5/10 | 5548 days | 1% |
| Beute Jacob | 7/10 | 5556 days | 2% |
| J P Paulvast | 8/10 | 5557 days | 2% |
| Beute Hjel | 8/10 | 5559 days | 2% |
| middendorp | 8/10 | 5589 days | 2% |
| Linda Coats | 10/10 | 5590 days | 2% |
| johnma | 10/10 | 5594 days | 2% |
| sels | 3/10 | 5605 days | 1% |
| Anna | 6/10 | 5635 days | 2% |
| alanvn | 3/10 | 5718 days | 1% |
| richards1 | 2/10 | 5730 days | 1% |
| KarinS | 5/10 | 5842 days | 1% |
| DirkGermany | 10/10 | 5844 days | 2% |
| KatrinS | 1/10 | 5861 days | 1% |
| Lucas | 7/10 | 5865 days | 2% |
| Anna Hansson | 10/10 | 5866 days | 2% |
| Anna Hansson | 10/10 | 5866 days | 2% |
| Sara Hansson | 9/10 | 5866 days | 2% |
| BevanLisa | 7/10 | 5866 days | 2% |
| Hans | 6/10 | 5866 days | 2% |
| OdiliaF | 10/10 | 5868 days | 2% |
| Mary | 9/10 | 5873 days | 2% |
| JetteG | 5/10 | 5883 days | 1% |
| VacherD | 8/10 | 5884 days | 2% |
| Adi | 10/10 | 5897 days | 2% |
| Philippa | 9/10 | 5897 days | 2% |
| De Vries | 7/10 | 5917 days | 2% |
| Debbie Mossman | 6/10 | 5924 days | 2% |
| nsmith | 9/10 | 6002 days | 2% |
| Gray | 10/10 | 6085 days | 2% |
| fgregory | 10/10 | 6112 days | 2% |
| Stewart | 6/10 | 6232 days | 2% |
| Sara Rütten | 4/10 | 6251 days | 1% |
| Sabine Feiner | 10/10 | 6254 days | 2% |
| Roger & Margaret | 8/10 | 6263 days | 2% |
| Gill O'Connor | 8/10 | 6265 days | 2% |
| Kevin | 9/10 | 6334 days | 2% |
| Floren | 8/10 | 6338 days | 2% |
| Rene Schotvanger | 4/10 | 6451 days | 1% |
| ranker_41 | 5/10 | 6451 days | 1% |
| Kate | 3/10 | 6607 days | 1% |
| Bernhard | 8/10 | 6623 days | 2% |
| Walburg | 8/10 | 6626 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
-1.55% Adjustment
There may be an adjustment if this experience hasn't received any reviews within the last 61 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 85 days. Adjustments are according to the following table.
| Days | Adjustment |
|---|---|
| … | … |
| 82 | -1.49% |
| 83 | -1.51% |
| 84 | -1.53% |
| 85 | -1.55% |
| 86 | -1.57% |
| 87 | -1.59% |
| 88 | -1.60% |
| … | … |
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.