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

66.02%

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 1271 days true 4.66 100%
Jaroslav Kacmar 7/10 1274 days true 4.23 91%
Fabian Probst 7/10 1294 days true 4.2 90%
Jonas Neumann 6/10 1304 days true 3.81 82%
Mark 8/10 1311 days true 4.35 93%
Alicia Speisekorn-Gil 10/10 1356 days true 4.49 96%
Marc Perales 3/10 1358 days true 3.45 74%
Laura Leoekloek 8/10 1383 days true 4.21 91%
Stephan Ophelders 6/10 1625 days true 3.29 71%
Ross Clark 9/10 1631 days true 3.95 85%
Anna Jungclaus 4/10 1634 days true 3.12 67%
Paul and Astrid 8/10 1638 days true 3.74 80%
Oliver Schatz 6/10 1646 days true 3.26 70%
Nadja 2/10 1646 days true 2.94 63%
Wil Goes 4/10 1651 days true 3.09 66%
D Davey 9/10 1653 days true 3.91 84%
Sylvain Blanchet 10/10 1659 days true 3.9 84%
Ral Pritchard 5/10 1670 days true 3.14 67%
Sue Strebe 6/10 2010 days true 2.66 57%
Helen Parsons 6/10 2016 days true 2.65 57%
Ann Wilson 7/10 2343 days true 2.33 50%
Reto 4/10 2371 days true 1.98 42%
Tiit Pullerits 2/10 2372 days true 1.88 40%
Glyn and Karen Farlow 7/10 2373 days true 2.27 49%
Marius Hoffmann 6/10 2374 days true 2.07 45%
Lena Jensen 3/10 2392 days true 1.9 41%
Jesper Andersen 4/10 2392 days true 1.94 42%
David Embling 5/10 2393 days true 1.99 43%
Angela Neville 8/10 2393 days true 2.34 50%
Derek Knight 8/10 2399 days true 2.33 50%
Jacqui Knight 8/10 2399 days true 2.33 50%
Elizabeth 7/10 2418 days true 2.19 47%
Roy Driehuis 7/10 2418 days true 2.19 47%
AusCampa 3/10 2661 days 1.49 32%
Andrew Grimes 7/10 2717 days true 1.66 36%
Lynda Quartay 9/10 2717 days true 1.83 39%
Julian Roots 8/10 2722 days 1.73 37%
Lorna and Seb 6/10 2725 days true 1.5 32%
Mary Neustroski 5/10 2736 days true 1.45 31%
Sam Bensemann 10/10 2781 days 1.7 37%
Mike Edwards 8/10 2797 days true 1.59 34%
Annie 5/10 2805 days true 1.34 29%
Dio 6/10 2814 days true 1.36 29%
Michel Vourbraak 8/10 2828 days true 1.53 33%
Evelyn Mackie 10/10 3080 days true 1.12 24%
Matthias Angela 6/10 3081 days true 0.92 20%
Jeltje 5/10 3096 days true 0.88 19%
Baas 7/10 3096 days true 0.99 21%
Josef 1/10 3097 days true 0.79 17%
Sylvia & Garrit 1/10 3101 days true 0.78 17%
Marco Scheiber 8/10 3110 days true 1.0 22%
Volker Neumeyer 9/10 3111 days true 1.05 23%
Anna 2/10 3114 days true 0.79 17%
Duncan & Ellen 5/10 3132 days true 0.82 18%
KandJ 1/10 3147 days 0.72 15%
Josh 7/10 3190 days true 0.82 18%
Ray Coombe 8/10 3190 days true 0.86 18%
Mr & Mrs Palmer 7/10 3439 days true 0.38 8%
John Stokes 8/10 3441 days true 0.39 8%
Julia 2/10 3443 days true 0.3 7%
Juerg & Denise Zuesli 3/10 3446 days true 0.31 7%
B Kleven 7/10 3447 days true 0.36 8%
Anita Tonks 4/10 3452 days true 0.31 7%
Carolin Ranner 5/10 3454 days true 0.31 7%
Kasten 4/10 3455 days true 0.3 6%
omlo 3/10 3467 days true 0.28 6%
David Heads 8/10 3468 days true 0.34 7%
Irene and Thib Schneider 8/10 3469 days true 0.34 7%
Bahner 10/10 3469 days true 0.35 8%
Teum and Orselien 5/10 3469 days true 0.29 6%
Daniel Bogdanowitsch 10/10 3472 days true 0.35 7%
Julia 7/10 3473 days true 0.32 7%
Bas Geerts 6/10 3474 days true 0.29 6%
Barbara 7/10 3474 days true 0.31 7%
JohnHaestad 7/10 3481 days 0.3 6%
Grant 8/10 3739 days true 0.0 0%
Quin 8/10 3787 days true 0.0 0%
Kaddi & Grego 1/10 3819 days true 0.0 0%
Thomas & Jucki 8/10 3821 days true 0.0 0%
Rolf X 4/10 3828 days true 0.0 0%
Gary Ebrig 7/10 3831 days true 0.0 0%
J Kempeneers 4/10 3832 days true 0.0 0%
Loleit 1/10 3839 days true 0.0 0%
vanijzendoor 8/10 3841 days true 0.0 0%
Sinjc Grude 3/10 3843 days true 0.0 0%
Jeremy & Sarah Rind 8/10 3845 days true 0.0 0%
Hugli 9/10 3851 days true 0.0 0%
W David R Thomas 5/10 3851 days true 0.0 0%
Beute Jacob 7/10 3859 days true 0.0 0%
J P Paulvast 8/10 3860 days true 0.0 0%
Beute Hjel 8/10 3862 days true 0.0 0%
middendorp 8/10 3892 days true 0.0 0%
Linda Coats 10/10 3893 days true 0.0 0%
johnma 10/10 3897 days true 0.0 0%
sels 3/10 3908 days 0.0 0%
Anna 6/10 3938 days 0.0 0%
alanvn 3/10 4021 days true 0.0 0%
richards1 2/10 4033 days true 0.0 0%
KarinS 5/10 4145 days true 0.0 0%
DirkGermany 10/10 4147 days true 0.0 0%
KatrinS 1/10 4164 days true 0.0 0%
Lucas 7/10 4169 days true 0.0 0%
Anna Hansson 10/10 4169 days true 0.0 0%
Anna Hansson 10/10 4169 days true 0.0 0%
Sara Hansson 9/10 4169 days true 0.0 0%
BevanLisa 7/10 4169 days true 0.0 0%
Hans 6/10 4169 days true 0.0 0%
OdiliaF 10/10 4171 days true 0.0 0%
Mary 9/10 4176 days true 0.0 0%
JetteG 5/10 4186 days true 0.0 0%
VacherD 8/10 4187 days true 0.0 0%
Adi 10/10 4201 days true 0.0 0%
Philippa 9/10 4201 days true 0.0 0%
De Vries 7/10 4220 days true 0.0 0%
Debbie Mossman 6/10 4227 days 0.0 0%
nsmith 9/10 4305 days 0.0 0%
Gray 10/10 4388 days true 0.0 0%
fgregory 10/10 4415 days 0.0 0%
Stewart 6/10 4535 days true 0.0 0%
Sara Rütten 4/10 4554 days 0.0 0%
Sabine Feiner 10/10 4557 days true 0.0 0%
Roger & Margaret 8/10 4566 days true 0.0 0%
Gill O'Connor 8/10 4568 days true 0.0 0%
Kevin 9/10 4637 days true 0.0 0%
Floren 8/10 4641 days true 0.0 0%
Rene Schotvanger 4/10 4754 days true 0.0 0%
ranker_41 5/10 4754 days true 0.0 0%
Kate 3/10 4910 days true 0.0 0%
Bernhard 8/10 4926 days true 0.0 0%
Walburg 8/10 4929 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

-2.28% Adjustment

There may be an adjustment if this experience hasn't received any reviews within the last 115 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 -2.24%
198 -2.26%
199 -2.27%
200 -2.28%
201 -2.29%
202 -2.30%
203 -2.31%

Final Ranking Score

64%

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.