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
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.