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
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
55.53%
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 | 70 days | 100% |
| Deb Z | 2/10 | 1107 days | 29% |
| Solvejg Bjerg | 9/10 | 2943 days | 5% |
| Jaroslav Kacmar | 7/10 | 2946 days | 5% |
| Fabian Probst | 7/10 | 2966 days | 5% |
| Jonas Neumann | 6/10 | 2976 days | 4% |
| Mark | 8/10 | 2983 days | 5% |
| Alicia Speisekorn-Gil | 10/10 | 3028 days | 5% |
| Marc Perales | 3/10 | 3030 days | 3% |
| Laura Leoekloek | 8/10 | 3055 days | 5% |
| Stephan Ophelders | 6/10 | 3297 days | 3% |
| Ross Clark | 9/10 | 3303 days | 4% |
| Anna Jungclaus | 4/10 | 3306 days | 2% |
| Paul and Astrid | 8/10 | 3310 days | 4% |
| Oliver Schatz | 6/10 | 3318 days | 3% |
| Nadja | 2/10 | 3318 days | 2% |
| Wil Goes | 4/10 | 3323 days | 2% |
| D Davey | 9/10 | 3325 days | 4% |
| Sylvain Blanchet | 10/10 | 3331 days | 4% |
| Ral Pritchard | 5/10 | 3342 days | 3% |
| Sue Strebe | 6/10 | 3682 days | 2% |
| Helen Parsons | 6/10 | 3688 days | 2% |
| Ann Wilson | 7/10 | 4015 days | 1% |
| Reto | 4/10 | 4043 days | 1% |
| Tiit Pullerits | 2/10 | 4044 days | 0% |
| Glyn and Karen Farlow | 7/10 | 4045 days | 1% |
| Marius Hoffmann | 6/10 | 4046 days | 1% |
| Lena Jensen | 3/10 | 4064 days | 1% |
| Jesper Andersen | 4/10 | 4064 days | 1% |
| David Embling | 5/10 | 4065 days | 1% |
| Angela Neville | 8/10 | 4065 days | 1% |
| Derek Knight | 8/10 | 4071 days | 1% |
| Jacqui Knight | 8/10 | 4071 days | 1% |
| Elizabeth | 7/10 | 4090 days | 1% |
| Roy Driehuis | 7/10 | 4090 days | 1% |
| AusCampa | 3/10 | 4333 days | 0% |
| Andrew Grimes | 7/10 | 4389 days | 2% |
| Lynda Quartay | 9/10 | 4389 days | 2% |
| Julian Roots | 8/10 | 4394 days | 2% |
| Lorna and Seb | 6/10 | 4397 days | 1% |
| Mary Neustroski | 5/10 | 4408 days | 1% |
| Sam Bensemann | 10/10 | 4453 days | 2% |
| Mike Edwards | 8/10 | 4469 days | 2% |
| Annie | 5/10 | 4477 days | 1% |
| Dio | 6/10 | 4486 days | 1% |
| Michel Vourbraak | 8/10 | 4500 days | 2% |
| Evelyn Mackie | 10/10 | 4752 days | 2% |
| Matthias Angela | 6/10 | 4753 days | 1% |
| Jeltje | 5/10 | 4768 days | 1% |
| Baas | 7/10 | 4768 days | 2% |
| Josef | 1/10 | 4769 days | 1% |
| Sylvia & Garrit | 1/10 | 4773 days | 1% |
| Marco Scheiber | 8/10 | 4782 days | 2% |
| Volker Neumeyer | 9/10 | 4783 days | 2% |
| Anna | 2/10 | 4786 days | 1% |
| Duncan & Ellen | 5/10 | 4804 days | 1% |
| KandJ | 1/10 | 4819 days | 1% |
| Josh | 7/10 | 4862 days | 2% |
| Ray Coombe | 8/10 | 4862 days | 2% |
| Mr & Mrs Palmer | 7/10 | 5111 days | 2% |
| John Stokes | 8/10 | 5113 days | 2% |
| Julia | 2/10 | 5115 days | 1% |
| Juerg & Denise Zuesli | 3/10 | 5118 days | 1% |
| B Kleven | 7/10 | 5119 days | 2% |
| Anita Tonks | 4/10 | 5124 days | 1% |
| Carolin Ranner | 5/10 | 5126 days | 1% |
| Kasten | 4/10 | 5127 days | 1% |
| omlo | 3/10 | 5139 days | 1% |
| David Heads | 8/10 | 5140 days | 2% |
| Irene and Thib Schneider | 8/10 | 5141 days | 2% |
| Bahner | 10/10 | 5141 days | 2% |
| Teum and Orselien | 5/10 | 5141 days | 1% |
| Daniel Bogdanowitsch | 10/10 | 5144 days | 2% |
| Julia | 7/10 | 5145 days | 2% |
| Bas Geerts | 6/10 | 5146 days | 1% |
| Barbara | 7/10 | 5146 days | 2% |
| JohnHaestad | 7/10 | 5153 days | 2% |
| Grant | 8/10 | 5411 days | 2% |
| Quin | 8/10 | 5459 days | 2% |
| Kaddi & Grego | 1/10 | 5491 days | 1% |
| Thomas & Jucki | 8/10 | 5493 days | 2% |
| Rolf X | 4/10 | 5500 days | 1% |
| Gary Ebrig | 7/10 | 5503 days | 2% |
| J Kempeneers | 4/10 | 5504 days | 1% |
| Loleit | 1/10 | 5511 days | 1% |
| vanijzendoor | 8/10 | 5513 days | 2% |
| Sinjc Grude | 3/10 | 5515 days | 1% |
| Jeremy & Sarah Rind | 8/10 | 5517 days | 2% |
| Hugli | 9/10 | 5523 days | 2% |
| W David R Thomas | 5/10 | 5523 days | 1% |
| Beute Jacob | 7/10 | 5531 days | 2% |
| J P Paulvast | 8/10 | 5532 days | 2% |
| Beute Hjel | 8/10 | 5534 days | 2% |
| middendorp | 8/10 | 5564 days | 2% |
| Linda Coats | 10/10 | 5565 days | 2% |
| johnma | 10/10 | 5569 days | 2% |
| sels | 3/10 | 5580 days | 1% |
| Anna | 6/10 | 5610 days | 1% |
| alanvn | 3/10 | 5693 days | 1% |
| richards1 | 2/10 | 5705 days | 1% |
| KarinS | 5/10 | 5817 days | 1% |
| DirkGermany | 10/10 | 5819 days | 2% |
| KatrinS | 1/10 | 5836 days | 1% |
| Lucas | 7/10 | 5841 days | 2% |
| Anna Hansson | 10/10 | 5841 days | 2% |
| Anna Hansson | 10/10 | 5841 days | 2% |
| Sara Hansson | 9/10 | 5841 days | 2% |
| BevanLisa | 7/10 | 5841 days | 2% |
| Hans | 6/10 | 5841 days | 1% |
| OdiliaF | 10/10 | 5843 days | 2% |
| Mary | 9/10 | 5848 days | 2% |
| JetteG | 5/10 | 5858 days | 1% |
| VacherD | 8/10 | 5859 days | 2% |
| Adi | 10/10 | 5872 days | 2% |
| Philippa | 9/10 | 5872 days | 2% |
| De Vries | 7/10 | 5892 days | 2% |
| Debbie Mossman | 6/10 | 5899 days | 1% |
| nsmith | 9/10 | 5977 days | 2% |
| Gray | 10/10 | 6060 days | 2% |
| fgregory | 10/10 | 6087 days | 2% |
| Stewart | 6/10 | 6207 days | 1% |
| Sara Rütten | 4/10 | 6226 days | 1% |
| Sabine Feiner | 10/10 | 6229 days | 2% |
| Roger & Margaret | 8/10 | 6238 days | 2% |
| Gill O'Connor | 8/10 | 6240 days | 2% |
| Kevin | 9/10 | 6309 days | 2% |
| Floren | 8/10 | 6313 days | 2% |
| Rene Schotvanger | 4/10 | 6426 days | 1% |
| ranker_41 | 5/10 | 6426 days | 1% |
| Kate | 3/10 | 6582 days | 1% |
| Bernhard | 8/10 | 6598 days | 2% |
| Walburg | 8/10 | 6601 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
-1.21% Adjustment
There may be an adjustment if this experience hasn't received any reviews within the last 57 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 60 days. Adjustments are according to the following table.
| Days | Adjustment |
|---|---|
| … | … |
| 57 | -1.15% |
| 58 | -1.17% |
| 59 | -1.19% |
| 60 | -1.21% |
| 61 | -1.23% |
| 62 | -1.25% |
| 63 | -1.27% |
| … | … |
Balancing Adjustment
18.55% 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.