Ranking Score Explained

Hi, 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 Driving Creek Railway & Potteries.

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.

Cymen Crick's avatar

Cymen Crick

Rankers Owner

Driving Creek Railway & Potteries

Valid Reviews

92 Valid Reviews

The Driving Creek Railway & Potteries experience has a total of 93 reviews. There are 92 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 92 valid reviews:

Rating Count Percentage
10/10 31
34%
9/10 20
22%
8/10 25
27%
7/10 8
9%
6/10 1
1%
5/10 4
4%
4/10 2
2%
3/10 1
1%
2/10 0
0%
1/10 0
0%

85.11% Average

The raw data average (mean) for all the Driving Creek Railway & Potteries valid reviews is 85.11% and is based on 92 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

81 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 92 valid reviews, the experience has 81 face-to-face reviews collected during interviews by our team.

Below is the distribution of ratings for the 81 face-to-face reviews:

Rating Count Percentage
10/10 27
33%
9/10 18
22%
8/10 22
27%
7/10 7
9%
6/10 1
1%
5/10 3
4%
4/10 2
2%
3/10 1
1%
2/10 0
0%
1/10 0
0%

85.06% Average

The raw data average (mean) for all the Driving Creek Railway & Potteries face-to-face reviews is 85.06% and is based on 81 face-to-face reviews. This value is not used to calculate the ranking score and it only provided here for comparison purposes.

Weighted Average

86.40%

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
Richard Webb 10/10 2945 days 100%
Colin George 10/10 2995 days 96%
Vanuxem 3/10 3242 days 43%
Camilla Geert 5/10 3252 days 60%
Manibod Vannaphone 8/10 3269 days 76%
Stephan Friedrich 10/10 3289 days 76%
Frank 8/10 3301 days 74%
Tatiana Racheneau 10/10 3315 days 74%
Liz and Alan Weathers 8/10 3675 days 48%
Phil Bromby 10/10 4000 days 26%
Helen 10/10 4003 days 26%
Jonas Nielsen 4/10 4009 days 16%
Karel 9/10 4019 days 24%
FlyingKiwiGirl 8/10 4368 days 0%
Emmanuel Tedeschi 7/10 4370 days 0%
Soren and Inelase Lindhardbell 10/10 4440 days 35%
Soren and Inelase Lindhardbell 10/10 4440 days 35%
Marian 8/10 4460 days 34%
Jonathan Tuthill 10/10 4718 days 35%
Goran Backlund 8/10 4718 days 34%
Burkard Fabu 10/10 4725 days 35%
Susanne A 10/10 4730 days 35%
Peter Hart 8/10 4730 days 34%
Johann Maier 10/10 4746 days 35%
pamr 10/10 4746 days 35%
Colin Philpott 9/10 4755 days 35%
John Reynolds 9/10 4757 days 35%
R Laurysen 7/10 4759 days 33%
Mike1952 8/10 4762 days 34%
Fred Saunders 10/10 4788 days 35%
Vbeirne 9/10 4793 days 35%
hendrik king 7/10 4824 days 33%
Andreas & Sonja 8/10 4840 days 34%
Anders Rathleff 8/10 4840 days 34%
R & M Willows 10/10 4841 days 35%
Schroeder 9/10 5087 days 35%
Jackie MacRostie 9/10 5089 days 35%
Krabbe 8/10 5090 days 34%
Diete Rokosch 10/10 5100 days 35%
Mirka Tinterova 10/10 5101 days 35%
J Blake 9/10 5103 days 35%
Pieter 8/10 5104 days 34%
George Lepple 10/10 5457 days 35%
Mr and Mrs Scott 5/10 5464 days 27%
Tony Killingray 9/10 5467 days 35%
Heike Pless 10/10 5473 days 35%
Ronja Op 4/10 5488 days 23%
Carol Dale 9/10 5490 days 35%
Carolina Gonzalez 9/10 5490 days 35%
Ines Diana 10/10 5491 days 35%
asiacritics 8/10 5554 days 34%
Anita de Boer 9/10 5556 days 35%
dirkdev 9/10 5558 days 35%
Bill Nash 9/10 5558 days 35%
rolandop 8/10 5558 days 34%
Vanessa 10/10 5565 days 35%
Karen & Ian 10/10 5565 days 35%
Hennie Neeleman 9/10 5566 days 35%
Pieter Neeleman 8/10 5566 days 34%
Mareike G 7/10 5566 days 33%
Josie Boyle 5/10 5726 days 27%
Katy Boyle 5/10 5726 days 27%
joyceb 10/10 5753 days 35%
Charles Lyne 9/10 5768 days 35%
BouterG 7/10 5794 days 33%
Kaye 10/10 5798 days 35%
caroldarren 10/10 5798 days 35%
JanL 10/10 5798 days 35%
LandR 10/10 5799 days 35%
JaneM 9/10 5804 days 35%
Erik 8/10 5821 days 34%
Grimm 9/10 5822 days 35%
Darren Main 10/10 5829 days 35%
RichardE 9/10 5833 days 35%
CarolF 10/10 5833 days 35%
Ian S 7/10 5847 days 33%
Rona 8/10 5849 days 34%
Nanno 8/10 5849 days 34%
Miranda 7/10 5875 days 33%
Kirsten 8/10 5911 days 34%
olland 8/10 5919 days 34%
carl_fagan 10/10 6073 days 35%
Anne and Derek 8/10 6190 days 34%
Andria Davis 9/10 6191 days 35%
Richard Steward 10/10 6195 days 35%
Marc Hertogs 7/10 6214 days 33%
Seldam 6/10 6246 days 30%
Monika 8/10 6273 days 34%
Rietveld 9/10 6556 days 35%
beesom 8/10 6564 days 34%
Rolf 8/10 6576 days 34%
Nicole 8/10 6576 days 34%

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 Driving Creek Railway & Potteries experience has plenty of reviews and does not meet the criteria for any adjustment.

Recent Reviews Adjustment

-4.15% Adjustment

There may be an adjustment if this experience hasn't received any reviews within the last 52 days. However the Driving Creek Railway & Potteries 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 Driving Creek Railway & Potteries experience has been adjusted for 200 days. Adjustments are according to the following table.

Days Adjustment
197 -4.09%
198 -4.11%
199 -4.13%
200 -4.15%
201 -4.17%
202 -4.20%
203 -4.22%

Balancing Adjustment

2.42% 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

85%

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.