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.
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.