Ranking Score Explained

G'day, 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.

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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

86.19%

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 2963 days 100%
Colin George 10/10 3013 days 96%
Vanuxem 3/10 3260 days 32%
Camilla Geert 5/10 3270 days 52%
Manibod Vannaphone 8/10 3287 days 71%
Stephan Friedrich 10/10 3307 days 71%
Frank 8/10 3319 days 68%
Tatiana Racheneau 10/10 3333 days 69%
Liz and Alan Weathers 8/10 3693 days 37%
Phil Bromby 10/10 4018 days 11%
Helen 10/10 4021 days 11%
Jonas Nielsen 4/10 4027 days 0%
Karel 9/10 4037 days 9%
FlyingKiwiGirl 8/10 4386 days 23%
Emmanuel Tedeschi 7/10 4388 days 21%
Soren and Inelase Lindhardbell 10/10 4458 days 24%
Soren and Inelase Lindhardbell 10/10 4458 days 24%
Marian 8/10 4478 days 23%
Jonathan Tuthill 10/10 4736 days 24%
Goran Backlund 8/10 4736 days 23%
Burkard Fabu 10/10 4743 days 24%
Susanne A 10/10 4748 days 24%
Peter Hart 8/10 4748 days 23%
Johann Maier 10/10 4764 days 24%
pamr 10/10 4764 days 24%
Colin Philpott 9/10 4773 days 23%
John Reynolds 9/10 4775 days 23%
R Laurysen 7/10 4777 days 21%
Mike1952 8/10 4780 days 23%
Fred Saunders 10/10 4806 days 24%
Vbeirne 9/10 4811 days 23%
hendrik king 7/10 4842 days 21%
Andreas & Sonja 8/10 4858 days 23%
Anders Rathleff 8/10 4858 days 23%
R & M Willows 10/10 4859 days 24%
Schroeder 9/10 5105 days 23%
Jackie MacRostie 9/10 5107 days 23%
Krabbe 8/10 5108 days 23%
Diete Rokosch 10/10 5118 days 24%
Mirka Tinterova 10/10 5119 days 24%
J Blake 9/10 5121 days 23%
Pieter 8/10 5122 days 23%
George Lepple 10/10 5475 days 24%
Mr and Mrs Scott 5/10 5482 days 13%
Tony Killingray 9/10 5485 days 23%
Heike Pless 10/10 5491 days 24%
Ronja Op 4/10 5506 days 9%
Carol Dale 9/10 5508 days 23%
Carolina Gonzalez 9/10 5508 days 23%
Ines Diana 10/10 5509 days 24%
asiacritics 8/10 5572 days 23%
Anita de Boer 9/10 5574 days 23%
dirkdev 9/10 5576 days 23%
Bill Nash 9/10 5576 days 23%
rolandop 8/10 5576 days 23%
Vanessa 10/10 5583 days 24%
Karen & Ian 10/10 5583 days 24%
Hennie Neeleman 9/10 5584 days 23%
Pieter Neeleman 8/10 5584 days 23%
Mareike G 7/10 5584 days 21%
Josie Boyle 5/10 5744 days 13%
Katy Boyle 5/10 5744 days 13%
joyceb 10/10 5771 days 24%
Charles Lyne 9/10 5786 days 23%
BouterG 7/10 5812 days 21%
Kaye 10/10 5816 days 24%
caroldarren 10/10 5816 days 24%
JanL 10/10 5816 days 24%
LandR 10/10 5816 days 24%
JaneM 9/10 5822 days 23%
Erik 8/10 5838 days 23%
Grimm 9/10 5839 days 23%
Darren Main 10/10 5847 days 24%
RichardE 9/10 5851 days 23%
CarolF 10/10 5851 days 24%
Ian S 7/10 5865 days 21%
Rona 8/10 5866 days 23%
Nanno 8/10 5866 days 23%
Miranda 7/10 5892 days 21%
Kirsten 8/10 5928 days 23%
olland 8/10 5936 days 23%
carl_fagan 10/10 6090 days 24%
Anne and Derek 8/10 6208 days 23%
Andria Davis 9/10 6209 days 23%
Richard Steward 10/10 6213 days 24%
Marc Hertogs 7/10 6232 days 21%
Seldam 6/10 6264 days 18%
Monika 8/10 6291 days 23%
Rietveld 9/10 6574 days 23%
beesom 8/10 6582 days 23%
Rolf 8/10 6594 days 23%
Nicole 8/10 6594 days 23%

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

-4.09% Adjustment

There may be an adjustment if this experience hasn't received any reviews within the last 55 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 -4.03%
198 -4.05%
199 -4.07%
200 -4.09%
201 -4.11%
202 -4.13%
203 -4.15%

Balancing Adjustment

2.46% 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.