G'day, 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
97.52%
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 | 311 days | 100% |
| Moira and Tom | 10/10 | 2351 days | 4% |
| Kylee Langdon | 9/10 | 2351 days | 4% |
| Nikki Bristol | 10/10 | 2382 days | 4% |
| shelagh gastrell | 10/10 | 2382 days | 4% |
| Clive Williams | 10/10 | 2443 days | 4% |
| Robin Mooring | 10/10 | 2443 days | 4% |
| Paddy O\\\'Connor | 9/10 | 2443 days | 4% |
| Liz Wade | 10/10 | 2472 days | 4% |
| Trevor | 10/10 | 2472 days | 4% |
| Linda | 10/10 | 2503 days | 4% |
| Pukerooster | 10/10 | 2503 days | 4% |
| T Alan Hatton | 10/10 | 2534 days | 4% |
| Emile | 10/10 | 2564 days | 4% |
| GODARD Tuatini | 10/10 | 2595 days | 4% |
| Ella | 10/10 | 2595 days | 4% |
| Sarah & Paul | 10/10 | 2595 days | 4% |
| Mary | 10/10 | 2656 days | 4% |
| Ricardo Nigro | 10/10 | 2748 days | 3% |
| beryl maehe rogers | 10/10 | 2778 days | 3% |
| Carlos Madrid | 9/10 | 2778 days | 3% |
| maryann de la haye | 10/10 | 2778 days | 3% |
| Kris | 10/10 | 2809 days | 3% |
| Jean-Martial MARENNE | 10/10 | 2809 days | 3% |
| Eleri | 10/10 | 2809 days | 3% |
| Richard Taylor | 10/10 | 2837 days | 3% |
| Jenny Hume | 10/10 | 2868 days | 3% |
| Ollie Bigelow | 10/10 | 2929 days | 3% |
| Kristine | 10/10 | 2929 days | 3% |
| Bill Lyon | 10/10 | 2929 days | 3% |
| Rob & Jan | 10/10 | 2929 days | 3% |
| geex25@gmail.com | 8/10 | 2929 days | 3% |
| Alex | 10/10 | 2960 days | 3% |
| Tara Holmes | 10/10 | 2960 days | 3% |
| Marg | 10/10 | 2960 days | 3% |
| Annette and Jan | 10/10 | 2960 days | 3% |
| Vanesa De la haza | 10/10 | 2990 days | 3% |
| Judy | 10/10 | 2990 days | 3% |
| Emanda | 10/10 | 2990 days | 3% |
| Mary | 10/10 | 2990 days | 3% |
| Paul from Australia | 10/10 | 3113 days | 3% |
| Brad, California | 10/10 | 3174 days | 2% |
| Sarah Killury | 10/10 | 3202 days | 2% |
| Kristin Svensson | 10/10 | 3233 days | 2% |
| Javier Mimbrera | 10/10 | 3355 days | 2% |
| Dave Rollison | 9/10 | 3539 days | 2% |
| Judit Van lanen | 9/10 | 3616 days | 1% |
| Thomas Nolwenn | 7/10 | 3664 days | 1% |
| Jilly Crew | 10/10 | 3720 days | 1% |
| Cj Bloomfield | 10/10 | 3843 days | 1% |
| Stephan Kirchenbaur | 8/10 | 3899 days | 1% |
| Eline Meijer | 7/10 | 3976 days | 1% |
| Ruth P | 10/10 | 3995 days | 1% |
| villemain pascale | 10/10 | 4025 days | 1% |
| Shelley Adderley | 10/10 | 4056 days | 1% |
| Niko Stange | 10/10 | 4239 days | 0% |
| Abi Fielder | 10/10 | 4298 days | 0% |
| MARYSE DUMAS | 9/10 | 4329 days | 0% |
| Karen Hale | 8/10 | 4329 days | 0% |
| Erik Hafuer | 10/10 | 4338 days | 0% |
| Bram and Laura | 9/10 | 4360 days | 0% |
| Polly Rider | 9/10 | 4364 days | 0% |
| Kyle S | 10/10 | 4421 days | 1% |
| Simon Mehlmann | 10/10 | 4612 days | 1% |
| Astrid | 10/10 | 4635 days | 1% |
| Miriam Grund | 8/10 | 4639 days | 1% |
| Brian | 9/10 | 4755 days | 1% |
| Martin & Carol | 10/10 | 4786 days | 1% |
| Christine & Andrew | 9/10 | 4878 days | 1% |
| Bonnie and David Appleby | 10/10 | 5000 days | 1% |
| Rob Walker | 10/10 | 5000 days | 1% |
| Brigitte | 9/10 | 5078 days | 1% |
| Andreas Garbin | 10/10 | 5078 days | 1% |
| cmhamlin | 10/10 | 5090 days | 1% |
| Fam von Hattem | 9/10 | 5102 days | 1% |
| Bodil Andersen | 10/10 | 5105 days | 1% |
| phudgb | 10/10 | 5151 days | 1% |
| Lukea | 10/10 | 5334 days | 1% |
| Huw Davies | 9/10 | 5340 days | 1% |
| Lisa Carey | 9/10 | 5351 days | 1% |
| Michael Touzer | 9/10 | 5360 days | 1% |
| Lucy Wilde | 9/10 | 5368 days | 1% |
| Miina Hyuonen | 8/10 | 5376 days | 1% |
| Dieter Mangold | 10/10 | 5377 days | 1% |
| Preben vil Helmsen | 10/10 | 5377 days | 1% |
| Rachel | 7/10 | 5379 days | 1% |
| Christian Apfel | 9/10 | 5382 days | 1% |
| Elizabeth Gardner | 9/10 | 5386 days | 1% |
| Fleur & Nils | 9/10 | 5387 days | 1% |
| kiwiconvert | 10/10 | 5394 days | 1% |
| ivanovskyv | 10/10 | 5425 days | 1% |
| Willem & Lilian | 9/10 | 5465 days | 1% |
| Lardy | 8/10 | 5473 days | 1% |
| piseagalba | 10/10 | 5486 days | 1% |
| katel86 | 10/10 | 5547 days | 1% |
| shelleyp | 10/10 | 5670 days | 1% |
| bdel1963 | 10/10 | 5670 days | 1% |
| Geoff Shutt | 9/10 | 5670 days | 1% |
| Ralph & Marloes Meyers | 8/10 | 5699 days | 1% |
| Helen Evans | 7/10 | 5714 days | 1% |
| Binder | 6/10 | 5715 days | 1% |
| Monica | 8/10 | 5727 days | 1% |
| Vincent | 9/10 | 5735 days | 1% |
| Kurmann/Kayser | 9/10 | 5737 days | 1% |
| Pascal | 9/10 | 5749 days | 1% |
| Kris | 10/10 | 5749 days | 1% |
| Sprangers | 9/10 | 5752 days | 1% |
| ianbateup | 10/10 | 5759 days | 1% |
| Lance | 10/10 | 5851 days | 1% |
| Papu | 10/10 | 5851 days | 1% |
| marisraneth | 8/10 | 6065 days | 1% |
| john england | 10/10 | 6096 days | 1% |
| Mary Selfa | 10/10 | 6120 days | 1% |
| snodge | 9/10 | 6124 days | 1% |
| PaulR | 10/10 | 6155 days | 1% |
| Thomas Rust | 10/10 | 6190 days | 1% |
| SBlake | 10/10 | 6435 days | 1% |
| KathM | 8/10 | 6446 days | 1% |
| ToyalFrance | 10/10 | 6450 days | 1% |
| Donna | 10/10 | 6455 days | 1% |
| PeterG | 9/10 | 6463 days | 1% |
| NicoleG | 8/10 | 6463 days | 1% |
| ReneeA | 9/10 | 6478 days | 1% |
| Ans | 8/10 | 6503 days | 1% |
| Marga V | 10/10 | 6542 days | 1% |
| mehunt | 9/10 | 6543 days | 1% |
| lming60 | 6/10 | 6556 days | 1% |
| Bryony Wilson | 9/10 | 6810 days | 1% |
| Buys | 7/10 | 6835 days | 1% |
| Carole Roccia | 10/10 | 6871 days | 1% |
| Valeria Barouch | 10/10 | 6912 days | 1% |
| Katherine | 10/10 | 7186 days | 1% |
| Nissa | 10/10 | 7195 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
-3.94% Adjustment
There may be an adjustment if this experience hasn't received any reviews within the last 47 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 200 days. Adjustments are according to the following table.
| Days | Adjustment |
|---|---|
| … | … |
| 197 | -3.88% |
| 198 | -3.90% |
| 199 | -3.92% |
| 200 | -3.94% |
| 201 | -3.96% |
| 202 | -3.98% |
| 203 | -4.00% |
| … | … |
Balancing Adjustment
0.58% 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
94%
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.