Hey, 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 Spellbound Ltd.
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.
Spellbound Ltd
Valid Reviews
133 Valid Reviews
The Spellbound Ltd experience has a total of 139 reviews. There are 133 valid reviews that are included when calculating the ranking score and 6 invalid reviews 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 133 valid reviews:
| Rating | Count | Percentage | |
|---|---|---|---|
| 10/10 | 84 |
|
63% |
| 9/10 | 30 |
|
23% |
| 8/10 | 12 |
|
9% |
| 7/10 | 5 |
|
4% |
| 6/10 | 2 |
|
2% |
| 5/10 | 0 |
|
0% |
| 4/10 | 0 |
|
0% |
| 3/10 | 0 |
|
0% |
| 2/10 | 0 |
|
0% |
| 1/10 | 0 |
|
0% |
94.21% Average
The raw data average (mean) for all the Spellbound Ltd valid reviews is 94.21% and is based on 133 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
52 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 133 valid reviews, the experience has 52 face-to-face reviews collected during interviews by our team.
Below is the distribution of ratings for the 52 face-to-face reviews:
| Rating | Count | Percentage | |
|---|---|---|---|
| 10/10 | 16 |
|
31% |
| 9/10 | 20 |
|
38% |
| 8/10 | 10 |
|
19% |
| 7/10 | 5 |
|
10% |
| 6/10 | 1 |
|
2% |
| 5/10 | 0 |
|
0% |
| 4/10 | 0 |
|
0% |
| 3/10 | 0 |
|
0% |
| 2/10 | 0 |
|
0% |
| 1/10 | 0 |
|
0% |
88.65% Average
The raw data average (mean) for all the Spellbound Ltd face-to-face reviews is 88.65% and is based on 52 face-to-face reviews. This value is not used to calculate the ranking score and it only provided here for comparison purposes.
Weighted Average
97.51%
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 |
|---|---|---|---|
| Zol | 10/10 | 129 days | 100% |
| Moira and Tom | 10/10 | 2169 days | 4% |
| Kylee Langdon | 9/10 | 2169 days | 4% |
| Nikki Bristol | 10/10 | 2200 days | 4% |
| shelagh gastrell | 10/10 | 2200 days | 4% |
| Clive Williams | 10/10 | 2261 days | 4% |
| Robin Mooring | 10/10 | 2261 days | 4% |
| Paddy O\\\'Connor | 9/10 | 2261 days | 4% |
| Liz Wade | 10/10 | 2290 days | 4% |
| Trevor | 10/10 | 2290 days | 4% |
| Linda | 10/10 | 2321 days | 4% |
| Pukerooster | 10/10 | 2321 days | 4% |
| T Alan Hatton | 10/10 | 2352 days | 4% |
| Emile | 10/10 | 2382 days | 4% |
| GODARD Tuatini | 10/10 | 2413 days | 4% |
| Ella | 10/10 | 2413 days | 4% |
| Sarah & Paul | 10/10 | 2413 days | 4% |
| Mary | 10/10 | 2474 days | 3% |
| Ricardo Nigro | 10/10 | 2566 days | 3% |
| beryl maehe rogers | 10/10 | 2596 days | 3% |
| Carlos Madrid | 9/10 | 2596 days | 3% |
| maryann de la haye | 10/10 | 2596 days | 3% |
| Kris | 10/10 | 2627 days | 3% |
| Jean-Martial MARENNE | 10/10 | 2627 days | 3% |
| Eleri | 10/10 | 2627 days | 3% |
| Richard Taylor | 10/10 | 2655 days | 3% |
| Jenny Hume | 10/10 | 2686 days | 3% |
| Ollie Bigelow | 10/10 | 2747 days | 3% |
| Kristine | 10/10 | 2747 days | 3% |
| Bill Lyon | 10/10 | 2747 days | 3% |
| Rob & Jan | 10/10 | 2747 days | 3% |
| geex25@gmail.com | 8/10 | 2747 days | 3% |
| Alex | 10/10 | 2778 days | 3% |
| Tara Holmes | 10/10 | 2778 days | 3% |
| Marg | 10/10 | 2778 days | 3% |
| Annette and Jan | 10/10 | 2778 days | 3% |
| Vanesa De la haza | 10/10 | 2808 days | 3% |
| Judy | 10/10 | 2808 days | 3% |
| Emanda | 10/10 | 2808 days | 3% |
| Mary | 10/10 | 2808 days | 3% |
| Paul from Australia | 10/10 | 2931 days | 3% |
| Brad, California | 10/10 | 2992 days | 2% |
| Sarah Killury | 10/10 | 3020 days | 2% |
| Kristin Svensson | 10/10 | 3051 days | 2% |
| Javier Mimbrera | 10/10 | 3173 days | 2% |
| Dave Rollison | 9/10 | 3357 days | 2% |
| Judit Van lanen | 9/10 | 3434 days | 1% |
| Thomas Nolwenn | 7/10 | 3482 days | 1% |
| Jilly Crew | 10/10 | 3538 days | 1% |
| Cj Bloomfield | 10/10 | 3661 days | 1% |
| Stephan Kirchenbaur | 8/10 | 3717 days | 1% |
| Eline Meijer | 7/10 | 3794 days | 1% |
| Ruth P | 10/10 | 3813 days | 1% |
| villemain pascale | 10/10 | 3843 days | 1% |
| Shelley Adderley | 10/10 | 3874 days | 1% |
| Niko Stange | 10/10 | 4057 days | 0% |
| Abi Fielder | 10/10 | 4116 days | 0% |
| MARYSE DUMAS | 9/10 | 4147 days | 0% |
| Karen Hale | 8/10 | 4147 days | 0% |
| Erik Hafuer | 10/10 | 4156 days | 0% |
| Bram and Laura | 9/10 | 4178 days | 0% |
| Polly Rider | 9/10 | 4182 days | 0% |
| Kyle S | 10/10 | 4239 days | 0% |
| Simon Mehlmann | 10/10 | 4430 days | 1% |
| Astrid | 10/10 | 4453 days | 1% |
| Miriam Grund | 8/10 | 4457 days | 1% |
| Brian | 9/10 | 4573 days | 1% |
| Martin & Carol | 10/10 | 4604 days | 1% |
| Christine & Andrew | 9/10 | 4696 days | 1% |
| Bonnie and David Appleby | 10/10 | 4818 days | 1% |
| Rob Walker | 10/10 | 4818 days | 1% |
| Brigitte | 9/10 | 4896 days | 1% |
| Andreas Garbin | 10/10 | 4896 days | 1% |
| cmhamlin | 10/10 | 4908 days | 1% |
| Fam von Hattem | 9/10 | 4920 days | 1% |
| Bodil Andersen | 10/10 | 4923 days | 1% |
| phudgb | 10/10 | 4969 days | 1% |
| Lukea | 10/10 | 5152 days | 1% |
| Huw Davies | 9/10 | 5158 days | 1% |
| Lisa Carey | 9/10 | 5169 days | 1% |
| Michael Touzer | 9/10 | 5178 days | 1% |
| Lucy Wilde | 9/10 | 5186 days | 1% |
| Miina Hyuonen | 8/10 | 5194 days | 1% |
| Dieter Mangold | 10/10 | 5195 days | 1% |
| Preben vil Helmsen | 10/10 | 5195 days | 1% |
| Rachel | 7/10 | 5197 days | 1% |
| Christian Apfel | 9/10 | 5200 days | 1% |
| Elizabeth Gardner | 9/10 | 5204 days | 1% |
| Fleur & Nils | 9/10 | 5205 days | 1% |
| kiwiconvert | 10/10 | 5212 days | 1% |
| ivanovskyv | 10/10 | 5243 days | 1% |
| Willem & Lilian | 9/10 | 5283 days | 1% |
| Lardy | 8/10 | 5291 days | 1% |
| piseagalba | 10/10 | 5304 days | 1% |
| katel86 | 10/10 | 5365 days | 1% |
| shelleyp | 10/10 | 5488 days | 1% |
| bdel1963 | 10/10 | 5488 days | 1% |
| Geoff Shutt | 9/10 | 5488 days | 1% |
| Ralph & Marloes Meyers | 8/10 | 5517 days | 1% |
| Helen Evans | 7/10 | 5532 days | 1% |
| Binder | 6/10 | 5533 days | 0% |
| Monica | 8/10 | 5545 days | 1% |
| Vincent | 9/10 | 5553 days | 1% |
| Kurmann/Kayser | 9/10 | 5555 days | 1% |
| Pascal | 9/10 | 5567 days | 1% |
| Kris | 10/10 | 5567 days | 1% |
| Sprangers | 9/10 | 5570 days | 1% |
| ianbateup | 10/10 | 5577 days | 1% |
| Lance | 10/10 | 5669 days | 1% |
| Papu | 10/10 | 5669 days | 1% |
| marisraneth | 8/10 | 5883 days | 1% |
| john england | 10/10 | 5914 days | 1% |
| Mary Selfa | 10/10 | 5938 days | 1% |
| snodge | 9/10 | 5942 days | 1% |
| PaulR | 10/10 | 5973 days | 1% |
| Thomas Rust | 10/10 | 6008 days | 1% |
| SBlake | 10/10 | 6253 days | 1% |
| KathM | 8/10 | 6265 days | 1% |
| ToyalFrance | 10/10 | 6268 days | 1% |
| Donna | 10/10 | 6273 days | 1% |
| PeterG | 9/10 | 6281 days | 1% |
| NicoleG | 8/10 | 6281 days | 1% |
| ReneeA | 9/10 | 6296 days | 1% |
| Ans | 8/10 | 6321 days | 1% |
| Marga V | 10/10 | 6360 days | 1% |
| mehunt | 9/10 | 6361 days | 1% |
| lming60 | 6/10 | 6374 days | 1% |
| Bryony Wilson | 9/10 | 6628 days | 1% |
| Buys | 7/10 | 6653 days | 1% |
| Carole Roccia | 10/10 | 6689 days | 1% |
| Valeria Barouch | 10/10 | 6730 days | 1% |
| Katherine | 10/10 | 7004 days | 1% |
| Nissa | 10/10 | 7013 days | 1% |
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 Spellbound Ltd experience has plenty of reviews and does not meet the criteria for any adjustment.
Recent Reviews Adjustment
-1.86% Adjustment
There may be an adjustment if this experience hasn't received any reviews within the last 86 days. However the Spellbound Ltd 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 Spellbound Ltd experience has been adjusted for 128 days. Adjustments are according to the following table.
| Days | Adjustment |
|---|---|
| … | … |
| 125 | -1.82% |
| 126 | -1.83% |
| 127 | -1.85% |
| 128 | -1.86% |
| 129 | -1.88% |
| 130 | -1.89% |
| 131 | -1.91% |
| … | … |
Balancing Adjustment
0.37% 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.
Final Ranking Score
96%
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.