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 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

85.59%

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 1987 days 100%
Colin George 10/10 2037 days 97%
Vanuxem 3/10 2284 days 60%
Camilla Geert 5/10 2294 days 63%
Manibod Vannaphone 8/10 2311 days 74%
Stephan Friedrich 10/10 2331 days 77%
Frank 8/10 2343 days 72%
Tatiana Racheneau 10/10 2357 days 76%
Liz and Alan Weathers 8/10 2717 days 49%
Phil Bromby 10/10 3042 days 31%
Helen 10/10 3045 days 31%
Jonas Nielsen 4/10 3051 days 22%
Karel 9/10 3061 days 29%
FlyingKiwiGirl 8/10 3410 days 6%
Emmanuel Tedeschi 7/10 3412 days 5%
Soren and Inelase Lindhardbell 10/10 3482 days 2%
Soren and Inelase Lindhardbell 10/10 3482 days 2%
Marian 8/10 3502 days 0%
Jonathan Tuthill 10/10 3760 days 24%
Goran Backlund 8/10 3760 days 23%
Burkard Fabu 10/10 3767 days 24%
Susanne A 10/10 3772 days 24%
Peter Hart 8/10 3772 days 23%
Johann Maier 10/10 3788 days 24%
pamr 10/10 3788 days 24%
Colin Philpott 9/10 3797 days 24%
John Reynolds 9/10 3799 days 24%
R Laurysen 7/10 3801 days 21%
Mike1952 8/10 3804 days 23%
Fred Saunders 10/10 3830 days 24%
Vbeirne 9/10 3835 days 24%
hendrik king 7/10 3866 days 21%
Andreas & Sonja 8/10 3882 days 23%
Anders Rathleff 8/10 3882 days 23%
R & M Willows 10/10 3883 days 24%
Schroeder 9/10 4129 days 24%
Jackie MacRostie 9/10 4131 days 24%
Krabbe 8/10 4132 days 23%
Diete Rokosch 10/10 4142 days 24%
Mirka Tinterova 10/10 4143 days 24%
J Blake 9/10 4145 days 24%
Pieter 8/10 4146 days 23%
George Lepple 10/10 4499 days 24%
Mr and Mrs Scott 5/10 4506 days 18%
Tony Killingray 9/10 4509 days 24%
Heike Pless 10/10 4515 days 24%
Ronja Op 4/10 4530 days 17%
Carol Dale 9/10 4532 days 24%
Carolina Gonzalez 9/10 4532 days 24%
Ines Diana 10/10 4533 days 24%
asiacritics 8/10 4596 days 23%
Anita de Boer 9/10 4598 days 24%
dirkdev 9/10 4600 days 24%
Bill Nash 9/10 4600 days 24%
rolandop 8/10 4600 days 23%
Vanessa 10/10 4607 days 24%
Karen & Ian 10/10 4607 days 24%
Hennie Neeleman 9/10 4608 days 24%
Pieter Neeleman 8/10 4608 days 23%
Mareike G 7/10 4608 days 21%
Josie Boyle 5/10 4768 days 18%
Katy Boyle 5/10 4768 days 18%
joyceb 10/10 4795 days 24%
Charles Lyne 9/10 4810 days 24%
BouterG 7/10 4836 days 21%
Kaye 10/10 4840 days 24%
caroldarren 10/10 4840 days 24%
JanL 10/10 4840 days 24%
LandR 10/10 4841 days 24%
JaneM 9/10 4846 days 24%
Erik 8/10 4862 days 23%
Grimm 9/10 4863 days 24%
Darren Main 10/10 4871 days 24%
RichardE 9/10 4875 days 24%
CarolF 10/10 4875 days 24%
Ian S 7/10 4889 days 21%
Rona 8/10 4890 days 23%
Nanno 8/10 4890 days 23%
Miranda 7/10 4916 days 21%
Kirsten 8/10 4953 days 23%
olland 8/10 4960 days 23%
carl_fagan 10/10 5114 days 24%
Anne and Derek 8/10 5232 days 23%
Andria Davis 9/10 5233 days 24%
Richard Steward 10/10 5237 days 24%
Marc Hertogs 7/10 5256 days 21%
Seldam 6/10 5288 days 19%
Monika 8/10 5315 days 23%
Rietveld 9/10 5598 days 24%
beesom 8/10 5606 days 23%
Rolf 8/10 5618 days 23%
Nicole 8/10 5618 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

-2.04% Adjustment

There may be an adjustment if this experience hasn't received any reviews within the last 123 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 -2.01%
198 -2.02%
199 -2.03%
200 -2.04%
201 -2.05%
202 -2.06%
203 -2.07%

Final Ranking Score

84%

The final ranking score once any adjustments, ratings, 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.