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
62.80%
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 | 931 days | 100% |
| Solvejg Bjerg | 9/10 | 2767 days | 13% |
| Jaroslav Kacmar | 7/10 | 2770 days | 12% |
| Fabian Probst | 7/10 | 2790 days | 12% |
| Jonas Neumann | 6/10 | 2800 days | 11% |
| Mark | 8/10 | 2807 days | 13% |
| Alicia Speisekorn-Gil | 10/10 | 2852 days | 13% |
| Marc Perales | 3/10 | 2854 days | 7% |
| Laura Leoekloek | 8/10 | 2879 days | 12% |
| Stephan Ophelders | 6/10 | 3121 days | 9% |
| Ross Clark | 9/10 | 3127 days | 10% |
| Anna Jungclaus | 4/10 | 3130 days | 7% |
| Paul and Astrid | 8/10 | 3134 days | 10% |
| Oliver Schatz | 6/10 | 3142 days | 9% |
| Nadja | 2/10 | 3142 days | 4% |
| Wil Goes | 4/10 | 3147 days | 6% |
| D Davey | 9/10 | 3149 days | 10% |
| Sylvain Blanchet | 10/10 | 3155 days | 10% |
| Ral Pritchard | 5/10 | 3166 days | 7% |
| Sue Strebe | 6/10 | 3506 days | 6% |
| Helen Parsons | 6/10 | 3512 days | 6% |
| Ann Wilson | 7/10 | 3839 days | 4% |
| Reto | 4/10 | 3867 days | 2% |
| Tiit Pullerits | 2/10 | 3868 days | 2% |
| Glyn and Karen Farlow | 7/10 | 3869 days | 4% |
| Marius Hoffmann | 6/10 | 3870 days | 3% |
| Lena Jensen | 3/10 | 3888 days | 2% |
| Jesper Andersen | 4/10 | 3888 days | 2% |
| David Embling | 5/10 | 3889 days | 3% |
| Angela Neville | 8/10 | 3889 days | 4% |
| Derek Knight | 8/10 | 3895 days | 4% |
| Jacqui Knight | 8/10 | 3895 days | 4% |
| Elizabeth | 7/10 | 3914 days | 3% |
| Roy Driehuis | 7/10 | 3914 days | 3% |
| AusCampa | 3/10 | 4157 days | 1% |
| Andrew Grimes | 7/10 | 4213 days | 1% |
| Lynda Quartay | 9/10 | 4213 days | 1% |
| Julian Roots | 8/10 | 4218 days | 1% |
| Lorna and Seb | 6/10 | 4221 days | 1% |
| Mary Neustroski | 5/10 | 4232 days | 0% |
| Sam Bensemann | 10/10 | 4277 days | 0% |
| Mike Edwards | 8/10 | 4293 days | 0% |
| Annie | 5/10 | 4301 days | 0% |
| Dio | 6/10 | 4310 days | 0% |
| Michel Vourbraak | 8/10 | 4324 days | 0% |
| Evelyn Mackie | 10/10 | 4576 days | 4% |
| Matthias Angela | 6/10 | 4577 days | 3% |
| Jeltje | 5/10 | 4592 days | 3% |
| Baas | 7/10 | 4592 days | 4% |
| Josef | 1/10 | 4593 days | 1% |
| Sylvia & Garrit | 1/10 | 4597 days | 1% |
| Marco Scheiber | 8/10 | 4606 days | 4% |
| Volker Neumeyer | 9/10 | 4607 days | 4% |
| Anna | 2/10 | 4610 days | 2% |
| Duncan & Ellen | 5/10 | 4628 days | 3% |
| KandJ | 1/10 | 4643 days | 1% |
| Josh | 7/10 | 4686 days | 4% |
| Ray Coombe | 8/10 | 4686 days | 4% |
| Mr & Mrs Palmer | 7/10 | 4935 days | 4% |
| John Stokes | 8/10 | 4937 days | 4% |
| Julia | 2/10 | 4939 days | 2% |
| Juerg & Denise Zuesli | 3/10 | 4942 days | 2% |
| B Kleven | 7/10 | 4943 days | 4% |
| Anita Tonks | 4/10 | 4948 days | 2% |
| Carolin Ranner | 5/10 | 4950 days | 3% |
| Kasten | 4/10 | 4951 days | 2% |
| omlo | 3/10 | 4963 days | 2% |
| David Heads | 8/10 | 4964 days | 4% |
| Irene and Thib Schneider | 8/10 | 4965 days | 4% |
| Bahner | 10/10 | 4965 days | 4% |
| Teum and Orselien | 5/10 | 4965 days | 3% |
| Daniel Bogdanowitsch | 10/10 | 4968 days | 4% |
| Julia | 7/10 | 4969 days | 4% |
| Bas Geerts | 6/10 | 4970 days | 3% |
| Barbara | 7/10 | 4970 days | 4% |
| JohnHaestad | 7/10 | 4977 days | 4% |
| Grant | 8/10 | 5235 days | 4% |
| Quin | 8/10 | 5283 days | 4% |
| Kaddi & Grego | 1/10 | 5315 days | 1% |
| Thomas & Jucki | 8/10 | 5317 days | 4% |
| Rolf X | 4/10 | 5324 days | 2% |
| Gary Ebrig | 7/10 | 5327 days | 4% |
| J Kempeneers | 4/10 | 5328 days | 2% |
| Loleit | 1/10 | 5335 days | 1% |
| vanijzendoor | 8/10 | 5337 days | 4% |
| Sinjc Grude | 3/10 | 5339 days | 2% |
| Jeremy & Sarah Rind | 8/10 | 5341 days | 4% |
| Hugli | 9/10 | 5347 days | 4% |
| W David R Thomas | 5/10 | 5347 days | 3% |
| Beute Jacob | 7/10 | 5355 days | 4% |
| J P Paulvast | 8/10 | 5356 days | 4% |
| Beute Hjel | 8/10 | 5358 days | 4% |
| middendorp | 8/10 | 5388 days | 4% |
| Linda Coats | 10/10 | 5389 days | 4% |
| johnma | 10/10 | 5393 days | 4% |
| sels | 3/10 | 5404 days | 2% |
| Anna | 6/10 | 5434 days | 3% |
| alanvn | 3/10 | 5517 days | 2% |
| richards1 | 2/10 | 5529 days | 2% |
| KarinS | 5/10 | 5641 days | 3% |
| DirkGermany | 10/10 | 5643 days | 4% |
| KatrinS | 1/10 | 5660 days | 1% |
| Lucas | 7/10 | 5664 days | 4% |
| Anna Hansson | 10/10 | 5665 days | 4% |
| Anna Hansson | 10/10 | 5665 days | 4% |
| Sara Hansson | 9/10 | 5665 days | 4% |
| BevanLisa | 7/10 | 5665 days | 4% |
| Hans | 6/10 | 5665 days | 3% |
| OdiliaF | 10/10 | 5667 days | 4% |
| Mary | 9/10 | 5672 days | 4% |
| JetteG | 5/10 | 5682 days | 3% |
| VacherD | 8/10 | 5683 days | 4% |
| Adi | 10/10 | 5696 days | 4% |
| Philippa | 9/10 | 5696 days | 4% |
| De Vries | 7/10 | 5716 days | 4% |
| Debbie Mossman | 6/10 | 5722 days | 3% |
| nsmith | 9/10 | 5800 days | 4% |
| Gray | 10/10 | 5883 days | 4% |
| fgregory | 10/10 | 5910 days | 4% |
| Stewart | 6/10 | 6031 days | 3% |
| Sara Rütten | 4/10 | 6050 days | 2% |
| Sabine Feiner | 10/10 | 6053 days | 4% |
| Roger & Margaret | 8/10 | 6062 days | 4% |
| Gill O'Connor | 8/10 | 6064 days | 4% |
| Kevin | 9/10 | 6133 days | 4% |
| Floren | 8/10 | 6137 days | 4% |
| Rene Schotvanger | 4/10 | 6250 days | 2% |
| ranker_41 | 5/10 | 6250 days | 3% |
| Kate | 3/10 | 6406 days | 2% |
| Bernhard | 8/10 | 6422 days | 4% |
| Walburg | 8/10 | 6425 days | 4% |
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
-2.98% Adjustment
There may be an adjustment if this experience hasn't received any reviews within the last 76 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 | -2.94% |
| 198 | -2.95% |
| 199 | -2.97% |
| 200 | -2.98% |
| 201 | -3.00% |
| 202 | -3.01% |
| 203 | -3.03% |
| … | … |
Balancing Adjustment
14.15% 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.