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.
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.
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.
86.10%
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 | 2797 days | 100% |
Colin George | 10/10 | 2847 days | 97% |
Vanuxem | 3/10 | 3094 days | 42% |
Camilla Geert | 5/10 | 3104 days | 60% |
Manibod Vannaphone | 8/10 | 3121 days | 77% |
Stephan Friedrich | 10/10 | 3141 days | 77% |
Frank | 8/10 | 3153 days | 75% |
Tatiana Racheneau | 10/10 | 3167 days | 76% |
Liz and Alan Weathers | 8/10 | 3527 days | 51% |
Phil Bromby | 10/10 | 3852 days | 30% |
Helen | 10/10 | 3855 days | 30% |
Jonas Nielsen | 4/10 | 3861 days | 18% |
Karel | 9/10 | 3871 days | 29% |
FlyingKiwiGirl | 8/10 | 4220 days | 6% |
Emmanuel Tedeschi | 7/10 | 4222 days | 5% |
Soren and Inelase Lindhardbell | 10/10 | 4292 days | 1% |
Soren and Inelase Lindhardbell | 10/10 | 4292 days | 1% |
Marian | 8/10 | 4312 days | 0% |
Jonathan Tuthill | 10/10 | 4570 days | 29% |
Goran Backlund | 8/10 | 4570 days | 29% |
Burkard Fabu | 10/10 | 4577 days | 29% |
Susanne A | 10/10 | 4582 days | 29% |
Peter Hart | 8/10 | 4582 days | 29% |
Johann Maier | 10/10 | 4598 days | 29% |
pamr | 10/10 | 4598 days | 29% |
Colin Philpott | 9/10 | 4607 days | 29% |
John Reynolds | 9/10 | 4609 days | 29% |
R Laurysen | 7/10 | 4611 days | 27% |
Mike1952 | 8/10 | 4614 days | 29% |
Fred Saunders | 10/10 | 4640 days | 29% |
Vbeirne | 9/10 | 4645 days | 29% |
hendrik king | 7/10 | 4676 days | 27% |
Andreas & Sonja | 8/10 | 4692 days | 29% |
Anders Rathleff | 8/10 | 4692 days | 29% |
R & M Willows | 10/10 | 4693 days | 29% |
Schroeder | 9/10 | 4939 days | 29% |
Jackie MacRostie | 9/10 | 4941 days | 29% |
Krabbe | 8/10 | 4942 days | 29% |
Diete Rokosch | 10/10 | 4952 days | 29% |
Mirka Tinterova | 10/10 | 4953 days | 29% |
J Blake | 9/10 | 4955 days | 29% |
Pieter | 8/10 | 4956 days | 29% |
George Lepple | 10/10 | 5309 days | 29% |
Mr and Mrs Scott | 5/10 | 5316 days | 21% |
Tony Killingray | 9/10 | 5319 days | 29% |
Heike Pless | 10/10 | 5325 days | 29% |
Ronja Op | 4/10 | 5340 days | 18% |
Carol Dale | 9/10 | 5342 days | 29% |
Carolina Gonzalez | 9/10 | 5342 days | 29% |
Ines Diana | 10/10 | 5343 days | 29% |
asiacritics | 8/10 | 5406 days | 29% |
Anita de Boer | 9/10 | 5408 days | 29% |
dirkdev | 9/10 | 5410 days | 29% |
Bill Nash | 9/10 | 5410 days | 29% |
rolandop | 8/10 | 5410 days | 29% |
Vanessa | 10/10 | 5417 days | 29% |
Karen & Ian | 10/10 | 5417 days | 29% |
Hennie Neeleman | 9/10 | 5418 days | 29% |
Pieter Neeleman | 8/10 | 5418 days | 29% |
Mareike G | 7/10 | 5418 days | 27% |
Josie Boyle | 5/10 | 5578 days | 21% |
Katy Boyle | 5/10 | 5578 days | 21% |
joyceb | 10/10 | 5605 days | 29% |
Charles Lyne | 9/10 | 5620 days | 29% |
BouterG | 7/10 | 5646 days | 27% |
Kaye | 10/10 | 5650 days | 29% |
caroldarren | 10/10 | 5650 days | 29% |
JanL | 10/10 | 5650 days | 29% |
LandR | 10/10 | 5651 days | 29% |
JaneM | 9/10 | 5656 days | 29% |
Erik | 8/10 | 5672 days | 29% |
Grimm | 9/10 | 5673 days | 29% |
Darren Main | 10/10 | 5681 days | 29% |
RichardE | 9/10 | 5685 days | 29% |
CarolF | 10/10 | 5685 days | 29% |
Ian S | 7/10 | 5699 days | 27% |
Rona | 8/10 | 5700 days | 29% |
Nanno | 8/10 | 5701 days | 29% |
Miranda | 7/10 | 5726 days | 27% |
Kirsten | 8/10 | 5763 days | 29% |
olland | 8/10 | 5770 days | 29% |
carl_fagan | 10/10 | 5924 days | 29% |
Anne and Derek | 8/10 | 6042 days | 29% |
Andria Davis | 9/10 | 6043 days | 29% |
Richard Steward | 10/10 | 6047 days | 29% |
Marc Hertogs | 7/10 | 6066 days | 27% |
Seldam | 6/10 | 6098 days | 25% |
Monika | 8/10 | 6125 days | 29% |
Rietveld | 9/10 | 6408 days | 29% |
beesom | 8/10 | 6416 days | 29% |
Rolf | 8/10 | 6428 days | 29% |
Nicole | 8/10 | 6428 days | 29% |
Several adjustments to the weighted average are added to improve relevancy and credibility. These adjustments apply equally to all experiences that meet the criteria.
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.
-3.03% Adjustment
There may be an adjustment if this experience hasn't received any reviews within the last 75 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 | -2.98% |
198 | -3.00% |
199 | -3.01% |
200 | -3.03% |
201 | -3.04% |
202 | -3.06% |
203 | -3.07% |
… | … |
2.23% 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.
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.