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.

Nick Morrison's avatar

Nick Morrison

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

84.98%

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 1731 days 100%
Colin George 10/10 1781 days 97%
Vanuxem 3/10 2028 days 65%
Camilla Geert 5/10 2038 days 68%
Manibod Vannaphone 8/10 2055 days 79%
Stephan Friedrich 10/10 2075 days 82%
Frank 8/10 2087 days 77%
Tatiana Racheneau 10/10 2101 days 80%
Liz and Alan Weathers 8/10 2461 days 58%
Phil Bromby 10/10 2786 days 44%
Helen 10/10 2789 days 44%
Jonas Nielsen 4/10 2795 days 34%
Karel 9/10 2805 days 43%
FlyingKiwiGirl 8/10 3154 days 24%
Emmanuel Tedeschi 7/10 3156 days 23%
Soren and Inelase Lindhardbell 10/10 3226 days 21%
Soren and Inelase Lindhardbell 10/10 3226 days 21%
Marian 8/10 3246 days 19%
Jonathan Tuthill 10/10 3504 days 6%
Goran Backlund 8/10 3504 days 6%
Burkard Fabu 10/10 3511 days 6%
Susanne A 10/10 3516 days 6%
Peter Hart 8/10 3516 days 6%
Johann Maier 10/10 3532 days 5%
pamr 10/10 3532 days 5%
Colin Philpott 9/10 3541 days 5%
John Reynolds 9/10 3543 days 4%
R Laurysen 7/10 3545 days 4%
Mike1952 8/10 3548 days 4%
Fred Saunders 10/10 3574 days 3%
Vbeirne 9/10 3579 days 3%
hendrik king 7/10 3610 days 1%
Andreas & Sonja 8/10 3626 days 0%
Anders Rathleff 8/10 3626 days 0%
R & M Willows 10/10 3627 days 0%
Schroeder 9/10 3873 days 26%
Jackie MacRostie 9/10 3875 days 26%
Krabbe 8/10 3876 days 24%
Diete Rokosch 10/10 3886 days 26%
Mirka Tinterova 10/10 3887 days 26%
J Blake 9/10 3889 days 26%
Pieter 8/10 3890 days 24%
George Lepple 10/10 4243 days 26%
Mr and Mrs Scott 5/10 4250 days 21%
Tony Killingray 9/10 4253 days 26%
Heike Pless 10/10 4259 days 26%
Ronja Op 4/10 4274 days 20%
Carol Dale 9/10 4276 days 26%
Carolina Gonzalez 9/10 4276 days 26%
Ines Diana 10/10 4277 days 26%
asiacritics 8/10 4340 days 24%
Anita de Boer 9/10 4342 days 26%
dirkdev 9/10 4344 days 26%
Bill Nash 9/10 4344 days 26%
rolandop 8/10 4344 days 24%
Vanessa 10/10 4351 days 26%
Karen & Ian 10/10 4351 days 26%
Hennie Neeleman 9/10 4352 days 26%
Pieter Neeleman 8/10 4352 days 24%
Mareike G 7/10 4352 days 23%
Josie Boyle 5/10 4511 days 21%
Katy Boyle 5/10 4511 days 21%
joyceb 10/10 4538 days 26%
Charles Lyne 9/10 4553 days 26%
BouterG 7/10 4580 days 23%
Kaye 10/10 4584 days 26%
caroldarren 10/10 4584 days 26%
JanL 10/10 4584 days 26%
LandR 10/10 4584 days 26%
JaneM 9/10 4590 days 26%
Erik 8/10 4606 days 24%
Grimm 9/10 4607 days 26%
Darren Main 10/10 4615 days 26%
RichardE 9/10 4619 days 26%
CarolF 10/10 4619 days 26%
Ian S 7/10 4633 days 23%
Rona 8/10 4634 days 24%
Nanno 8/10 4634 days 24%
Miranda 7/10 4660 days 23%
Kirsten 8/10 4696 days 24%
olland 8/10 4704 days 24%
carl_fagan 10/10 4858 days 26%
Anne and Derek 8/10 4976 days 24%
Andria Davis 9/10 4977 days 26%
Richard Steward 10/10 4981 days 26%
Marc Hertogs 7/10 5000 days 23%
Seldam 6/10 5032 days 21%
Monika 8/10 5059 days 24%
Rietveld 9/10 5342 days 26%
beesom 8/10 5350 days 24%
Rolf 8/10 5362 days 24%
Nicole 8/10 5362 days 24%

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

-3.64% Adjustment

There may be an adjustment if this experience hasn't received any reviews within the last 57 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 -3.59%
198 -3.60%
199 -3.62%
200 -3.64%
201 -3.66%
202 -3.68%
203 -3.70%

Final Ranking Score

81%

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.