Kia ora, 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
132 Valid Reviews
The Spellbound Ltd experience has a total of 138 reviews. There are 132 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 132 valid reviews:
| Rating | Count | Percentage | |
|---|---|---|---|
| 10/10 | 83 |
|
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% |
94.17% Average
The raw data average (mean) for all the Spellbound Ltd valid reviews is 94.17% and is based on 132 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 132 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
96.58%
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 |
|---|---|---|---|
| Moira and Tom | 10/10 | 1664 days | 100% |
| Kylee Langdon | 9/10 | 1664 days | 99% |
| Nikki Bristol | 10/10 | 1695 days | 92% |
| shelagh gastrell | 10/10 | 1695 days | 92% |
| Clive Williams | 10/10 | 1756 days | 81% |
| Robin Mooring | 10/10 | 1756 days | 81% |
| Paddy O\\\'Connor | 9/10 | 1756 days | 80% |
| Liz Wade | 10/10 | 1785 days | 78% |
| Trevor | 10/10 | 1785 days | 78% |
| Linda | 10/10 | 1816 days | 77% |
| Pukerooster | 10/10 | 1816 days | 77% |
| T Alan Hatton | 10/10 | 1847 days | 76% |
| Emile | 10/10 | 1877 days | 75% |
| GODARD Tuatini | 10/10 | 1908 days | 74% |
| Ella | 10/10 | 1908 days | 74% |
| Sarah & Paul | 10/10 | 1908 days | 74% |
| Mary | 10/10 | 1969 days | 72% |
| Ricardo Nigro | 10/10 | 2061 days | 69% |
| beryl maehe rogers | 10/10 | 2091 days | 69% |
| Carlos Madrid | 9/10 | 2091 days | 68% |
| maryann de la haye | 10/10 | 2091 days | 69% |
| Kris | 10/10 | 2122 days | 68% |
| Jean-Martial MARENNE | 10/10 | 2122 days | 68% |
| Eleri | 10/10 | 2122 days | 68% |
| Richard Taylor | 10/10 | 2150 days | 67% |
| Jenny Hume | 10/10 | 2181 days | 66% |
| Ollie Bigelow | 10/10 | 2242 days | 64% |
| Kristine | 10/10 | 2242 days | 64% |
| Bill Lyon | 10/10 | 2242 days | 64% |
| Rob & Jan | 10/10 | 2242 days | 64% |
| geex25@gmail.com | 8/10 | 2242 days | 63% |
| Alex | 10/10 | 2273 days | 63% |
| Tara Holmes | 10/10 | 2273 days | 63% |
| Marg | 10/10 | 2273 days | 63% |
| Annette and Jan | 10/10 | 2273 days | 63% |
| Vanesa De la haza | 10/10 | 2303 days | 62% |
| Judy | 10/10 | 2303 days | 62% |
| Emanda | 10/10 | 2303 days | 62% |
| Mary | 10/10 | 2303 days | 62% |
| Paul from Australia | 10/10 | 2426 days | 58% |
| Brad, California | 10/10 | 2487 days | 56% |
| Sarah Killury | 10/10 | 2515 days | 55% |
| Kristin Svensson | 10/10 | 2546 days | 54% |
| Javier Mimbrera | 10/10 | 2668 days | 51% |
| Dave Rollison | 9/10 | 2852 days | 45% |
| Judit Van lanen | 9/10 | 2929 days | 38% |
| Thomas Nolwenn | 7/10 | 2977 days | 34% |
| Jilly Crew | 10/10 | 3033 days | 39% |
| Cj Bloomfield | 10/10 | 3156 days | 36% |
| Stephan Kirchenbaur | 8/10 | 3212 days | 30% |
| Eline Meijer | 7/10 | 3289 days | 26% |
| Ruth P | 10/10 | 3308 days | 31% |
| villemain pascale | 10/10 | 3338 days | 30% |
| Shelley Adderley | 10/10 | 3369 days | 29% |
| Niko Stange | 10/10 | 3552 days | 23% |
| Abi Fielder | 10/10 | 3611 days | 22% |
| MARYSE DUMAS | 9/10 | 3642 days | 20% |
| Karen Hale | 8/10 | 3642 days | 20% |
| Erik Hafuer | 10/10 | 3651 days | 18% |
| Bram and Laura | 9/10 | 3673 days | 17% |
| Polly Rider | 9/10 | 3677 days | 17% |
| Kyle S | 10/10 | 3734 days | 18% |
| Simon Mehlmann | 10/10 | 3925 days | 11% |
| Astrid | 10/10 | 3948 days | 11% |
| Miriam Grund | 8/10 | 3952 days | 10% |
| Brian | 9/10 | 4068 days | 7% |
| Martin & Carol | 10/10 | 4099 days | 7% |
| Christine & Andrew | 9/10 | 4191 days | 4% |
| Bonnie and David Appleby | 10/10 | 4313 days | 0% |
| Rob Walker | 10/10 | 4313 days | 0% |
| Brigitte | 9/10 | 4391 days | 12% |
| Andreas Garbin | 10/10 | 4391 days | 12% |
| cmhamlin | 10/10 | 4403 days | 14% |
| Fam von Hattem | 9/10 | 4415 days | 12% |
| Bodil Andersen | 10/10 | 4418 days | 12% |
| phudgb | 10/10 | 4464 days | 14% |
| Lukea | 10/10 | 4647 days | 14% |
| Huw Davies | 9/10 | 4653 days | 12% |
| Lisa Carey | 9/10 | 4664 days | 12% |
| Michael Touzer | 9/10 | 4673 days | 12% |
| Lucy Wilde | 9/10 | 4681 days | 12% |
| Miina Hyuonen | 8/10 | 4689 days | 12% |
| Dieter Mangold | 10/10 | 4690 days | 12% |
| Preben vil Helmsen | 10/10 | 4690 days | 12% |
| Rachel | 7/10 | 4692 days | 11% |
| Christian Apfel | 9/10 | 4695 days | 12% |
| Elizabeth Gardner | 9/10 | 4699 days | 12% |
| Fleur & Nils | 9/10 | 4700 days | 12% |
| kiwiconvert | 10/10 | 4707 days | 14% |
| ivanovskyv | 10/10 | 4738 days | 14% |
| Willem & Lilian | 9/10 | 4778 days | 12% |
| Lardy | 8/10 | 4786 days | 12% |
| piseagalba | 10/10 | 4799 days | 14% |
| katel86 | 10/10 | 4860 days | 14% |
| shelleyp | 10/10 | 4983 days | 14% |
| bdel1963 | 10/10 | 4983 days | 14% |
| Geoff Shutt | 9/10 | 4983 days | 14% |
| Ralph & Marloes Meyers | 8/10 | 5012 days | 12% |
| Helen Evans | 7/10 | 5027 days | 11% |
| Binder | 6/10 | 5028 days | 10% |
| Monica | 8/10 | 5040 days | 12% |
| Vincent | 9/10 | 5048 days | 12% |
| Kurmann/Kayser | 9/10 | 5050 days | 12% |
| Pascal | 9/10 | 5062 days | 12% |
| Kris | 10/10 | 5062 days | 12% |
| Sprangers | 9/10 | 5065 days | 12% |
| ianbateup | 10/10 | 5072 days | 14% |
| Lance | 10/10 | 5164 days | 14% |
| Papu | 10/10 | 5164 days | 14% |
| marisraneth | 8/10 | 5378 days | 12% |
| john england | 10/10 | 5409 days | 14% |
| Mary Selfa | 10/10 | 5433 days | 12% |
| snodge | 9/10 | 5437 days | 14% |
| PaulR | 10/10 | 5468 days | 14% |
| Thomas Rust | 10/10 | 5503 days | 12% |
| SBlake | 10/10 | 5748 days | 12% |
| KathM | 8/10 | 5759 days | 12% |
| ToyalFrance | 10/10 | 5763 days | 12% |
| Donna | 10/10 | 5768 days | 12% |
| PeterG | 9/10 | 5776 days | 12% |
| NicoleG | 8/10 | 5776 days | 12% |
| ReneeA | 9/10 | 5791 days | 12% |
| Ans | 8/10 | 5816 days | 12% |
| Marga V | 10/10 | 5855 days | 14% |
| mehunt | 9/10 | 5856 days | 14% |
| lming60 | 6/10 | 5869 days | 12% |
| Bryony Wilson | 9/10 | 6123 days | 12% |
| Buys | 7/10 | 6148 days | 11% |
| Carole Roccia | 10/10 | 6184 days | 12% |
| Valeria Barouch | 10/10 | 6225 days | 12% |
| Katherine | 10/10 | 6499 days | 12% |
| Nissa | 10/10 | 6508 days | 12% |
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
-4.04% Adjustment
There may be an adjustment if this experience hasn't received any reviews within the last 41 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 | -3.97% |
| 198 | -3.99% |
| 199 | -4.02% |
| 200 | -4.04% |
| 201 | -4.06% |
| 202 | -4.08% |
| 203 | -4.10% |
| … | … |
Balancing Adjustment
0.69% 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
93%
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.