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
86.50%
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 | Face-to-Face | Weight | Relative Weight |
|---|---|---|---|---|---|
| Richard Webb | 10/10 | 943 days |  |
8.66 | 100% |
| Colin George | 10/10 | 993 days | |
6.65 | 77% |
| Vanuxem | 3/10 | 1240 days | |
3.68 | 42% |
| Camilla Geert | 5/10 | 1250 days | |
3.86 | 45% |
| Manibod Vannaphone | 8/10 | 1267 days | |
4.5 | 52% |
| Stephan Friedrich | 10/10 | 1287 days | 4.71 | 54% | |
| Frank | 8/10 | 1299 days | |
4.46 | 51% |
| Tatiana Racheneau | 10/10 | 1313 days | |
4.67 | 54% |
| Liz and Alan Weathers | 8/10 | 1673 days | |
3.91 | 45% |
| Phil Bromby | 10/10 | 1998 days | |
3.63 | 42% |
| Helen | 10/10 | 2001 days | 3.62 | 42% | |
| Jonas Nielsen | 4/10 | 2007 days | |
2.85 | 33% |
| Karel | 9/10 | 2017 days | |
3.6 | 42% |
| FlyingKiwiGirl | 8/10 | 2366 days | 2.91 | 34% | |
| Emmanuel Tedeschi | 7/10 | 2368 days | |
2.79 | 32% |
| Soren and Inelase Lindhardbell | 10/10 | 2438 days | |
2.96 | 34% |
| Soren and Inelase Lindhardbell | 10/10 | 2438 days | |
2.96 | 34% |
| Marian | 8/10 | 2458 days | |
2.78 | 32% |
| Jonathan Tuthill | 10/10 | 2716 days | |
2.53 | 29% |
| Goran Backlund | 8/10 | 2716 days | |
2.41 | 28% |
| Burkard Fabu | 10/10 | 2723 days | |
2.52 | 29% |
| Susanne A | 10/10 | 2728 days | |
2.51 | 29% |
| Peter Hart | 8/10 | 2728 days | |
2.39 | 28% |
| Johann Maier | 10/10 | 2744 days | |
2.49 | 29% |
| pamr | 10/10 | 2744 days | |
2.49 | 29% |
| Colin Philpott | 9/10 | 2753 days | |
2.48 | 29% |
| John Reynolds | 9/10 | 2755 days | |
2.47 | 29% |
| R Laurysen | 7/10 | 2757 days | |
2.25 | 26% |
| Mike1952 | 8/10 | 2760 days | 2.34 | 27% | |
| Fred Saunders | 10/10 | 2786 days | |
2.43 | 28% |
| Vbeirne | 9/10 | 2791 days | 2.42 | 28% | |
| hendrik king | 7/10 | 2822 days | 2.16 | 25% | |
| Andreas & Sonja | 8/10 | 2838 days | |
2.23 | 26% |
| Anders Rathleff | 8/10 | 2838 days | |
2.23 | 26% |
| R & M Willows | 10/10 | 2839 days | |
2.35 | 27% |
| Schroeder | 9/10 | 3085 days | |
1.97 | 23% |
| Jackie MacRostie | 9/10 | 3087 days | |
1.97 | 23% |
| Krabbe | 8/10 | 3088 days | |
1.87 | 22% |
| Diete Rokosch | 10/10 | 3098 days | |
1.95 | 23% |
| Mirka Tinterova | 10/10 | 3099 days | |
1.95 | 23% |
| J Blake | 9/10 | 3101 days | |
1.95 | 22% |
| Pieter | 8/10 | 3102 days | |
1.85 | 21% |
| George Lepple | 10/10 | 3455 days | |
1.41 | 16% |
| Mr and Mrs Scott | 5/10 | 3462 days | 1.13 | 13% | |
| Tony Killingray | 9/10 | 3465 days | |
1.39 | 16% |
| Heike Pless | 10/10 | 3471 days | |
1.38 | 16% |
| Ronja Op | 4/10 | 3486 days | |
1.07 | 12% |
| Carol Dale | 9/10 | 3488 days | |
1.36 | 16% |
| Carolina Gonzalez | 9/10 | 3488 days | |
1.36 | 16% |
| Ines Diana | 10/10 | 3489 days | |
1.36 | 16% |
| asiacritics | 8/10 | 3552 days | 1.2 | 14% | |
| Anita de Boer | 9/10 | 3554 days | |
1.26 | 15% |
| dirkdev | 9/10 | 3556 days | |
1.25 | 14% |
| Bill Nash | 9/10 | 3556 days | |
1.25 | 14% |
| rolandop | 8/10 | 3556 days | |
1.19 | 14% |
| Vanessa | 10/10 | 3563 days | |
1.24 | 14% |
| Karen & Ian | 10/10 | 3563 days | |
1.24 | 14% |
| Hennie Neeleman | 9/10 | 3564 days | |
1.24 | 14% |
| Pieter Neeleman | 8/10 | 3564 days | |
1.18 | 14% |
| Mareike G | 7/10 | 3564 days | |
1.13 | 13% |
| Josie Boyle | 5/10 | 3724 days | |
0.81 | 9% |
| Katy Boyle | 5/10 | 3724 days | |
0.81 | 9% |
| joyceb | 10/10 | 3751 days | |
0.96 | 11% |
| Charles Lyne | 9/10 | 3766 days | 0.93 | 11% | |
| BouterG | 7/10 | 3792 days | |
0.81 | 9% |
| Kaye | 10/10 | 3796 days | |
0.89 | 10% |
| caroldarren | 10/10 | 3796 days | |
0.89 | 10% |
| JanL | 10/10 | 3796 days | |
0.89 | 10% |
| LandR | 10/10 | 3796 days | |
0.89 | 10% |
| JaneM | 9/10 | 3802 days | |
0.88 | 10% |
| Erik | 8/10 | 3818 days | |
0.81 | 9% |
| Grimm | 9/10 | 3819 days | |
0.85 | 10% |
| Darren Main | 10/10 | 3827 days | 0.84 | 10% | |
| RichardE | 9/10 | 3831 days | |
0.84 | 10% |
| CarolF | 10/10 | 3831 days | |
0.84 | 10% |
| Ian S | 7/10 | 3845 days | |
0.74 | 9% |
| Rona | 8/10 | 3846 days | |
0.77 | 9% |
| Nanno | 8/10 | 3846 days | |
0.77 | 9% |
| Miranda | 7/10 | 3872 days | |
0.7 | 8% |
| Kirsten | 8/10 | 3908 days | |
0.68 | 8% |
| olland | 8/10 | 3916 days | |
0.67 | 8% |
| carl_fagan | 10/10 | 4070 days | 0.47 | 5% | |
| Anne and Derek | 8/10 | 4188 days | |
0.28 | 3% |
| Andria Davis | 9/10 | 4189 days | |
0.29 | 3% |
| Richard Steward | 10/10 | 4193 days | |
0.28 | 3% |
| Marc Hertogs | 7/10 | 4212 days | |
0.23 | 3% |
| Seldam | 6/10 | 4244 days | |
0.17 | 2% |
| Monika | 8/10 | 4271 days | |
0.16 | 2% |
| Rietveld | 9/10 | 4554 days | |
0.0 | 0% |
| beesom | 8/10 | 4562 days | |
0.0 | 0% |
| Rolf | 8/10 | 4574 days | |
0.0 | 0% |
| Nicole | 8/10 | 4574 days | |
0.0 | 0% |
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
-3.98% Adjustment
There may be an adjustment if an experience hasn't received any reviews within the last 60 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 199 days.
The Driving Creek Railway & Potteries experience has been adjusted for 199 days. Adjustments are according to the following table.
| Days | Adjustment |
|---|---|
| … | … |
| 196 | -3.92% |
| 197 | -3.94% |
| 198 | -3.96% |
| 199 | -3.98% |
| 200 | -4.00% |
| 201 | -4.02% |
| 202 | -4.04% |
| … | … |
Final Ranking Score
83%
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.