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 132 reviews. There are 131 valid reviews that are included when calculating the ranking score and 1 invalid review 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 | 9 |
|
7% |
| 2/10 | 6 |
|
5% |
| 1/10 | 6 |
|
5% |
64.50% Average
The raw data average (mean) for all the Buller Gorge Swingbridge valid reviews is 64.50% 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
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 131 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
63.24%
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 |
|---|---|---|---|
| Deb Z | 2/10 | 975 days | 100% |
| Solvejg Bjerg | 9/10 | 2811 days | 14% |
| Jaroslav Kacmar | 7/10 | 2814 days | 13% |
| Fabian Probst | 7/10 | 2834 days | 13% |
| Jonas Neumann | 6/10 | 2844 days | 12% |
| Mark | 8/10 | 2851 days | 14% |
| Alicia Speisekorn-Gil | 10/10 | 2896 days | 14% |
| Marc Perales | 3/10 | 2898 days | 7% |
| Laura Leoekloek | 8/10 | 2923 days | 13% |
| Stephan Ophelders | 6/10 | 3165 days | 10% |
| Ross Clark | 9/10 | 3171 days | 11% |
| Anna Jungclaus | 4/10 | 3174 days | 7% |
| Paul and Astrid | 8/10 | 3178 days | 11% |
| Oliver Schatz | 6/10 | 3186 days | 9% |
| Nadja | 2/10 | 3186 days | 5% |
| Wil Goes | 4/10 | 3191 days | 7% |
| D Davey | 9/10 | 3193 days | 11% |
| Sylvain Blanchet | 10/10 | 3199 days | 11% |
| Ral Pritchard | 5/10 | 3210 days | 8% |
| Sue Strebe | 6/10 | 3550 days | 7% |
| Helen Parsons | 6/10 | 3556 days | 6% |
| Ann Wilson | 7/10 | 3883 days | 4% |
| Reto | 4/10 | 3911 days | 3% |
| Tiit Pullerits | 2/10 | 3912 days | 2% |
| Glyn and Karen Farlow | 7/10 | 3913 days | 4% |
| Marius Hoffmann | 6/10 | 3914 days | 4% |
| Lena Jensen | 3/10 | 3932 days | 2% |
| Jesper Andersen | 4/10 | 3932 days | 3% |
| David Embling | 5/10 | 3933 days | 3% |
| Angela Neville | 8/10 | 3933 days | 4% |
| Derek Knight | 8/10 | 3939 days | 4% |
| Jacqui Knight | 8/10 | 3939 days | 4% |
| Elizabeth | 7/10 | 3958 days | 4% |
| Roy Driehuis | 7/10 | 3958 days | 4% |
| AusCampa | 3/10 | 4201 days | 1% |
| Andrew Grimes | 7/10 | 4257 days | 1% |
| Lynda Quartay | 9/10 | 4257 days | 1% |
| Julian Roots | 8/10 | 4262 days | 1% |
| Lorna and Seb | 6/10 | 4265 days | 1% |
| Mary Neustroski | 5/10 | 4276 days | 1% |
| Sam Bensemann | 10/10 | 4321 days | 0% |
| Mike Edwards | 8/10 | 4337 days | 0% |
| Annie | 5/10 | 4345 days | 0% |
| Dio | 6/10 | 4354 days | 0% |
| Michel Vourbraak | 8/10 | 4368 days | 0% |
| Evelyn Mackie | 10/10 | 4620 days | 5% |
| Matthias Angela | 6/10 | 4621 days | 4% |
| Jeltje | 5/10 | 4636 days | 4% |
| Baas | 7/10 | 4636 days | 4% |
| Josef | 1/10 | 4637 days | 2% |
| Sylvia & Garrit | 1/10 | 4641 days | 2% |
| Marco Scheiber | 8/10 | 4650 days | 5% |
| Volker Neumeyer | 9/10 | 4651 days | 5% |
| Anna | 2/10 | 4654 days | 2% |
| Duncan & Ellen | 5/10 | 4672 days | 4% |
| KandJ | 1/10 | 4687 days | 2% |
| Josh | 7/10 | 4730 days | 4% |
| Ray Coombe | 8/10 | 4730 days | 5% |
| Mr & Mrs Palmer | 7/10 | 4979 days | 4% |
| John Stokes | 8/10 | 4981 days | 5% |
| Julia | 2/10 | 4983 days | 2% |
| Juerg & Denise Zuesli | 3/10 | 4986 days | 2% |
| B Kleven | 7/10 | 4987 days | 4% |
| Anita Tonks | 4/10 | 4992 days | 3% |
| Carolin Ranner | 5/10 | 4994 days | 4% |
| Kasten | 4/10 | 4995 days | 3% |
| omlo | 3/10 | 5007 days | 2% |
| David Heads | 8/10 | 5008 days | 5% |
| Irene and Thib Schneider | 8/10 | 5009 days | 5% |
| Bahner | 10/10 | 5009 days | 5% |
| Teum and Orselien | 5/10 | 5009 days | 4% |
| Daniel Bogdanowitsch | 10/10 | 5012 days | 5% |
| Julia | 7/10 | 5013 days | 4% |
| Bas Geerts | 6/10 | 5014 days | 4% |
| Barbara | 7/10 | 5014 days | 4% |
| JohnHaestad | 7/10 | 5021 days | 4% |
| Grant | 8/10 | 5279 days | 5% |
| Quin | 8/10 | 5327 days | 5% |
| Kaddi & Grego | 1/10 | 5359 days | 2% |
| Thomas & Jucki | 8/10 | 5361 days | 5% |
| Rolf X | 4/10 | 5368 days | 3% |
| Gary Ebrig | 7/10 | 5371 days | 4% |
| J Kempeneers | 4/10 | 5372 days | 3% |
| Loleit | 1/10 | 5379 days | 2% |
| vanijzendoor | 8/10 | 5381 days | 5% |
| Sinjc Grude | 3/10 | 5383 days | 2% |
| Jeremy & Sarah Rind | 8/10 | 5385 days | 5% |
| Hugli | 9/10 | 5391 days | 5% |
| W David R Thomas | 5/10 | 5391 days | 4% |
| Beute Jacob | 7/10 | 5399 days | 4% |
| J P Paulvast | 8/10 | 5400 days | 5% |
| Beute Hjel | 8/10 | 5402 days | 5% |
| middendorp | 8/10 | 5432 days | 5% |
| Linda Coats | 10/10 | 5433 days | 5% |
| johnma | 10/10 | 5437 days | 5% |
| sels | 3/10 | 5448 days | 2% |
| Anna | 6/10 | 5478 days | 4% |
| alanvn | 3/10 | 5561 days | 2% |
| richards1 | 2/10 | 5573 days | 2% |
| KarinS | 5/10 | 5685 days | 4% |
| DirkGermany | 10/10 | 5687 days | 5% |
| KatrinS | 1/10 | 5704 days | 2% |
| Lucas | 7/10 | 5708 days | 4% |
| Anna Hansson | 10/10 | 5709 days | 5% |
| Anna Hansson | 10/10 | 5709 days | 5% |
| Sara Hansson | 9/10 | 5709 days | 5% |
| BevanLisa | 7/10 | 5709 days | 4% |
| Hans | 6/10 | 5709 days | 4% |
| OdiliaF | 10/10 | 5711 days | 5% |
| Mary | 9/10 | 5716 days | 5% |
| JetteG | 5/10 | 5726 days | 4% |
| VacherD | 8/10 | 5727 days | 5% |
| Adi | 10/10 | 5740 days | 5% |
| Philippa | 9/10 | 5740 days | 5% |
| De Vries | 7/10 | 5760 days | 4% |
| Debbie Mossman | 6/10 | 5766 days | 4% |
| nsmith | 9/10 | 5844 days | 5% |
| Gray | 10/10 | 5927 days | 5% |
| fgregory | 10/10 | 5954 days | 5% |
| Stewart | 6/10 | 6075 days | 4% |
| Sara Rütten | 4/10 | 6094 days | 3% |
| Sabine Feiner | 10/10 | 6097 days | 5% |
| Roger & Margaret | 8/10 | 6106 days | 5% |
| Gill O'Connor | 8/10 | 6108 days | 5% |
| Kevin | 9/10 | 6177 days | 5% |
| Floren | 8/10 | 6181 days | 5% |
| Rene Schotvanger | 4/10 | 6294 days | 3% |
| ranker_41 | 5/10 | 6294 days | 4% |
| Kate | 3/10 | 6450 days | 2% |
| Bernhard | 8/10 | 6466 days | 5% |
| Walburg | 8/10 | 6469 days | 5% |
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
-3.85% Adjustment
There may be an adjustment if this experience hasn't received any reviews within the last 50 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 | -3.80% |
| 198 | -3.82% |
| 199 | -3.83% |
| 200 | -3.85% |
| 201 | -3.87% |
| 202 | -3.89% |
| 203 | -3.91% |
| … | … |
Balancing Adjustment
14.47% 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
74%
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.