Ranking Score Explained

Hi there, 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.

Nick Morrison's avatar

Nick Morrison

Rankers owner

Buller Gorge Swingbridge

Valid Reviews

130 Valid Reviews

The Buller Gorge Swingbridge experience has a total of 131 reviews. There are 130 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 130 valid reviews:

Rating Count Percentage
10/10 16
12%
9/10 11
8%
8/10 28
22%
7/10 19
15%
6/10 14
11%
5/10 12
9%
4/10 10
8%
3/10 9
7%
2/10 5
4%
1/10 6
5%

64.85% Average

The raw data average (mean) for all the Buller Gorge Swingbridge valid reviews is 64.85% and is based on 130 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 130 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

65.74%

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 Face-to-Face Weight Relative Weight
Solvejg Bjerg 9/10 1063 days true 5.16 100%
Jaroslav Kacmar 7/10 1066 days true 4.67 90%
Fabian Probst 7/10 1086 days true 4.56 88%
Jonas Neumann 6/10 1096 days true 4.15 80%
Mark 8/10 1103 days true 4.74 92%
Alicia Speisekorn-Gil 10/10 1148 days true 4.9 95%
Marc Perales 3/10 1150 days true 3.77 73%
Laura Leoekloek 8/10 1175 days true 4.6 89%
Stephan Ophelders 6/10 1417 days true 3.63 70%
Ross Clark 9/10 1423 days true 4.36 84%
Anna Jungclaus 4/10 1426 days true 3.44 67%
Paul and Astrid 8/10 1430 days true 4.13 80%
Oliver Schatz 6/10 1438 days true 3.59 70%
Nadja 2/10 1438 days true 3.25 63%
Wil Goes 4/10 1443 days true 3.41 66%
D Davey 9/10 1445 days true 4.32 84%
Sylvain Blanchet 10/10 1451 days true 4.3 83%
Ral Pritchard 5/10 1462 days true 3.47 67%
Sue Strebe 6/10 1802 days true 3.0 58%
Helen Parsons 6/10 1808 days true 2.99 58%
Ann Wilson 7/10 2135 days true 2.7 52%
Reto 4/10 2163 days true 2.3 45%
Tiit Pullerits 2/10 2164 days true 2.18 42%
Glyn and Karen Farlow 7/10 2165 days true 2.64 51%
Marius Hoffmann 6/10 2166 days true 2.41 47%
Lena Jensen 3/10 2184 days true 2.21 43%
Jesper Andersen 4/10 2184 days true 2.27 44%
David Embling 5/10 2185 days true 2.32 45%
Angela Neville 8/10 2185 days true 2.72 53%
Derek Knight 8/10 2191 days true 2.71 53%
Jacqui Knight 8/10 2191 days true 2.71 53%
Elizabeth 7/10 2210 days true 2.56 50%
Roy Driehuis 7/10 2210 days true 2.56 50%
AusCampa 3/10 2453 days 1.8 35%
Andrew Grimes 7/10 2509 days true 2.03 39%
Lynda Quartay 9/10 2509 days true 2.23 43%
Julian Roots 8/10 2514 days 2.11 41%
Lorna and Seb 6/10 2517 days true 1.84 36%
Mary Neustroski 5/10 2528 days true 1.78 34%
Sam Bensemann 10/10 2573 days 2.11 41%
Mike Edwards 8/10 2589 days true 1.97 38%
Annie 5/10 2597 days true 1.67 32%
Dio 6/10 2606 days true 1.7 33%
Michel Vourbraak 8/10 2620 days true 1.91 37%
Evelyn Mackie 10/10 2872 days true 1.52 29%
Matthias Angela 6/10 2873 days true 1.26 24%
Jeltje 5/10 2888 days true 1.21 23%
Baas 7/10 2888 days true 1.36 26%
Josef 1/10 2889 days true 1.09 21%
Sylvia & Garrit 1/10 2893 days true 1.08 21%
Marco Scheiber 8/10 2902 days true 1.39 27%
Volker Neumeyer 9/10 2903 days true 1.46 28%
Anna 2/10 2906 days true 1.09 21%
Duncan & Ellen 5/10 2924 days true 1.15 22%
KandJ 1/10 2939 days 1.02 20%
Josh 7/10 2982 days true 1.19 23%
Ray Coombe 8/10 2982 days true 1.24 24%
Mr & Mrs Palmer 7/10 3231 days true 0.75 14%
John Stokes 8/10 3233 days true 0.78 15%
Julia 2/10 3235 days true 0.61 12%
Juerg & Denise Zuesli 3/10 3238 days true 0.62 12%
B Kleven 7/10 3239 days true 0.73 14%
Anita Tonks 4/10 3244 days true 0.63 12%
Carolin Ranner 5/10 3246 days true 0.64 12%
Kasten 4/10 3247 days true 0.62 12%
omlo 3/10 3259 days true 0.59 11%
David Heads 8/10 3260 days true 0.73 14%
Irene and Thib Schneider 8/10 3261 days true 0.72 14%
Bahner 10/10 3261 days true 0.76 15%
Teum and Orselien 5/10 3261 days true 0.62 12%
Daniel Bogdanowitsch 10/10 3264 days true 0.76 15%
Julia 7/10 3265 days true 0.69 13%
Bas Geerts 6/10 3266 days true 0.62 12%
Barbara 7/10 3266 days true 0.68 13%
JohnHaestad 7/10 3273 days 0.67 13%
Grant 8/10 3531 days true 0.22 4%
Quin 8/10 3579 days true 0.13 3%
Kaddi & Grego 1/10 3611 days true 0.06 1%
Thomas & Jucki 8/10 3613 days true 0.07 1%
Rolf X 4/10 3620 days true 0.05 1%
Gary Ebrig 7/10 3623 days true 0.05 1%
J Kempeneers 4/10 3624 days true 0.04 1%
Loleit 1/10 3631 days true 0.03 1%
vanijzendoor 8/10 3633 days true 0.03 1%
Sinjc Grude 3/10 3635 days true 0.02 0%
Jeremy & Sarah Rind 8/10 3637 days true 0.02 0%
Hugli 9/10 3643 days true 0.01 0%
W David R Thomas 5/10 3643 days true 0.01 0%
Beute Jacob 7/10 3651 days true 0.0 0%
J P Paulvast 8/10 3652 days true 0.0 0%
Beute Hjel 8/10 3654 days true 0.0 0%
middendorp 8/10 3684 days true 0.0 0%
Linda Coats 10/10 3685 days true 0.0 0%
johnma 10/10 3689 days true 0.0 0%
sels 3/10 3700 days 0.0 0%
Anna 6/10 3730 days 0.0 0%
alanvn 3/10 3813 days true 0.0 0%
richards1 2/10 3825 days true 0.0 0%
KarinS 5/10 3937 days true 0.0 0%
DirkGermany 10/10 3939 days true 0.0 0%
KatrinS 1/10 3956 days true 0.0 0%
Lucas 7/10 3960 days true 0.0 0%
Anna Hansson 10/10 3961 days true 0.0 0%
Anna Hansson 10/10 3961 days true 0.0 0%
Sara Hansson 9/10 3961 days true 0.0 0%
BevanLisa 7/10 3961 days true 0.0 0%
Hans 6/10 3961 days true 0.0 0%
OdiliaF 10/10 3963 days true 0.0 0%
Mary 9/10 3968 days true 0.0 0%
JetteG 5/10 3978 days true 0.0 0%
VacherD 8/10 3979 days true 0.0 0%
Adi 10/10 3992 days true 0.0 0%
Philippa 9/10 3992 days true 0.0 0%
De Vries 7/10 4012 days true 0.0 0%
Debbie Mossman 6/10 4018 days 0.0 0%
nsmith 9/10 4096 days 0.0 0%
Gray 10/10 4179 days true 0.0 0%
fgregory 10/10 4206 days 0.0 0%
Stewart 6/10 4327 days true 0.0 0%
Sara Rütten 4/10 4346 days 0.0 0%
Sabine Feiner 10/10 4349 days true 0.0 0%
Roger & Margaret 8/10 4358 days true 0.0 0%
Gill O'Connor 8/10 4360 days true 0.0 0%
Kevin 9/10 4429 days true 0.0 0%
Floren 8/10 4433 days true 0.0 0%
Rene Schotvanger 4/10 4546 days true 0.0 0%
ranker_41 5/10 4546 days true 0.0 0%
Kate 3/10 4702 days true 0.0 0%
Bernhard 8/10 4718 days true 0.0 0%
Walburg 8/10 4721 days true 0.0 0%

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

-3.98% Adjustment

There may be an adjustment if an experience hasn't received any reviews within the last 60 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 199 days.

The Buller Gorge Swingbridge experience has been adjusted for 199 days. Adjustments are according to the following table.

Days Adjustment
196 -3.92%
197 -3.94%
198 -3.96%
199 -3.98%
200 -4.00%
201 -4.02%
202 -4.04%

Final Ranking Score

62%

The final ranking score once adjustments and rounding has been applied. This value is cached and recalculated each day. Therefore it may not be precisely accurate based on the other values presented.

If you have any questions or comments about our ranking score calculation please get in touch at info@rankers.co.nz.