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
97.53%
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 | 48 days | 100% |
| Moira and Tom | 10/10 | 2088 days | 4% |
| Kylee Langdon | 9/10 | 2088 days | 4% |
| Nikki Bristol | 10/10 | 2119 days | 4% |
| shelagh gastrell | 10/10 | 2119 days | 4% |
| Clive Williams | 10/10 | 2180 days | 4% |
| Robin Mooring | 10/10 | 2180 days | 4% |
| Paddy O\\\'Connor | 9/10 | 2180 days | 4% |
| Liz Wade | 10/10 | 2209 days | 4% |
| Trevor | 10/10 | 2209 days | 4% |
| Linda | 10/10 | 2240 days | 4% |
| Pukerooster | 10/10 | 2240 days | 4% |
| T Alan Hatton | 10/10 | 2271 days | 4% |
| Emile | 10/10 | 2301 days | 4% |
| GODARD Tuatini | 10/10 | 2332 days | 4% |
| Ella | 10/10 | 2332 days | 4% |
| Sarah & Paul | 10/10 | 2332 days | 4% |
| Mary | 10/10 | 2393 days | 4% |
| Ricardo Nigro | 10/10 | 2485 days | 4% |
| beryl maehe rogers | 10/10 | 2515 days | 4% |
| Carlos Madrid | 9/10 | 2515 days | 4% |
| maryann de la haye | 10/10 | 2515 days | 4% |
| Kris | 10/10 | 2546 days | 4% |
| Jean-Martial MARENNE | 10/10 | 2546 days | 4% |
| Eleri | 10/10 | 2546 days | 4% |
| Richard Taylor | 10/10 | 2574 days | 4% |
| Jenny Hume | 10/10 | 2605 days | 3% |
| Ollie Bigelow | 10/10 | 2666 days | 3% |
| Kristine | 10/10 | 2666 days | 3% |
| Bill Lyon | 10/10 | 2666 days | 3% |
| Rob & Jan | 10/10 | 2666 days | 3% |
| geex25@gmail.com | 8/10 | 2666 days | 3% |
| Alex | 10/10 | 2697 days | 3% |
| Tara Holmes | 10/10 | 2697 days | 3% |
| Marg | 10/10 | 2697 days | 3% |
| Annette and Jan | 10/10 | 2697 days | 3% |
| Vanesa De la haza | 10/10 | 2727 days | 3% |
| Judy | 10/10 | 2727 days | 3% |
| Emanda | 10/10 | 2727 days | 3% |
| Mary | 10/10 | 2727 days | 3% |
| Paul from Australia | 10/10 | 2850 days | 3% |
| Brad, California | 10/10 | 2911 days | 3% |
| Sarah Killury | 10/10 | 2939 days | 3% |
| Kristin Svensson | 10/10 | 2970 days | 3% |
| Javier Mimbrera | 10/10 | 3092 days | 3% |
| Dave Rollison | 9/10 | 3276 days | 2% |
| Judit Van lanen | 9/10 | 3353 days | 2% |
| Thomas Nolwenn | 7/10 | 3401 days | 2% |
| Jilly Crew | 10/10 | 3457 days | 2% |
| Cj Bloomfield | 10/10 | 3580 days | 2% |
| Stephan Kirchenbaur | 8/10 | 3636 days | 1% |
| Eline Meijer | 7/10 | 3713 days | 1% |
| Ruth P | 10/10 | 3732 days | 1% |
| villemain pascale | 10/10 | 3762 days | 1% |
| Shelley Adderley | 10/10 | 3793 days | 1% |
| Niko Stange | 10/10 | 3976 days | 1% |
| Abi Fielder | 10/10 | 4035 days | 1% |
| MARYSE DUMAS | 9/10 | 4066 days | 1% |
| Karen Hale | 8/10 | 4066 days | 1% |
| Erik Hafuer | 10/10 | 4075 days | 1% |
| Bram and Laura | 9/10 | 4097 days | 0% |
| Polly Rider | 9/10 | 4101 days | 0% |
| Kyle S | 10/10 | 4158 days | 0% |
| Simon Mehlmann | 10/10 | 4349 days | 0% |
| Astrid | 10/10 | 4372 days | 0% |
| Miriam Grund | 8/10 | 4376 days | 0% |
| Brian | 9/10 | 4492 days | 1% |
| Martin & Carol | 10/10 | 4523 days | 1% |
| Christine & Andrew | 9/10 | 4615 days | 1% |
| Bonnie and David Appleby | 10/10 | 4737 days | 1% |
| Rob Walker | 10/10 | 4737 days | 1% |
| Brigitte | 9/10 | 4815 days | 1% |
| Andreas Garbin | 10/10 | 4815 days | 1% |
| cmhamlin | 10/10 | 4827 days | 1% |
| Fam von Hattem | 9/10 | 4839 days | 1% |
| Bodil Andersen | 10/10 | 4842 days | 1% |
| phudgb | 10/10 | 4888 days | 1% |
| Lukea | 10/10 | 5071 days | 1% |
| Huw Davies | 9/10 | 5077 days | 1% |
| Lisa Carey | 9/10 | 5088 days | 1% |
| Michael Touzer | 9/10 | 5097 days | 1% |
| Lucy Wilde | 9/10 | 5105 days | 1% |
| Miina Hyuonen | 8/10 | 5113 days | 1% |
| Dieter Mangold | 10/10 | 5114 days | 1% |
| Preben vil Helmsen | 10/10 | 5114 days | 1% |
| Rachel | 7/10 | 5116 days | 1% |
| Christian Apfel | 9/10 | 5119 days | 1% |
| Elizabeth Gardner | 9/10 | 5123 days | 1% |
| Fleur & Nils | 9/10 | 5124 days | 1% |
| kiwiconvert | 10/10 | 5131 days | 1% |
| ivanovskyv | 10/10 | 5162 days | 1% |
| Willem & Lilian | 9/10 | 5202 days | 1% |
| Lardy | 8/10 | 5210 days | 1% |
| piseagalba | 10/10 | 5223 days | 1% |
| katel86 | 10/10 | 5284 days | 1% |
| shelleyp | 10/10 | 5407 days | 1% |
| bdel1963 | 10/10 | 5407 days | 1% |
| Geoff Shutt | 9/10 | 5407 days | 1% |
| Ralph & Marloes Meyers | 8/10 | 5436 days | 1% |
| Helen Evans | 7/10 | 5451 days | 1% |
| Binder | 6/10 | 5452 days | 1% |
| Monica | 8/10 | 5464 days | 1% |
| Vincent | 9/10 | 5472 days | 1% |
| Kurmann/Kayser | 9/10 | 5474 days | 1% |
| Pascal | 9/10 | 5486 days | 1% |
| Kris | 10/10 | 5486 days | 1% |
| Sprangers | 9/10 | 5489 days | 1% |
| ianbateup | 10/10 | 5496 days | 1% |
| Lance | 10/10 | 5588 days | 1% |
| Papu | 10/10 | 5588 days | 1% |
| marisraneth | 8/10 | 5802 days | 1% |
| john england | 10/10 | 5833 days | 1% |
| Mary Selfa | 10/10 | 5857 days | 1% |
| snodge | 9/10 | 5861 days | 1% |
| PaulR | 10/10 | 5892 days | 1% |
| Thomas Rust | 10/10 | 5927 days | 1% |
| SBlake | 10/10 | 6172 days | 1% |
| KathM | 8/10 | 6184 days | 1% |
| ToyalFrance | 10/10 | 6187 days | 1% |
| Donna | 10/10 | 6193 days | 1% |
| PeterG | 9/10 | 6200 days | 1% |
| NicoleG | 8/10 | 6200 days | 1% |
| ReneeA | 9/10 | 6215 days | 1% |
| Ans | 8/10 | 6241 days | 1% |
| Marga V | 10/10 | 6280 days | 1% |
| mehunt | 9/10 | 6280 days | 1% |
| lming60 | 6/10 | 6293 days | 1% |
| Bryony Wilson | 9/10 | 6547 days | 1% |
| Buys | 7/10 | 6572 days | 1% |
| Carole Roccia | 10/10 | 6608 days | 1% |
| Valeria Barouch | 10/10 | 6649 days | 1% |
| Katherine | 10/10 | 6923 days | 1% |
| Nissa | 10/10 | 6932 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
-0.97% Adjustment
There may be an adjustment if this experience hasn't received any reviews within the last 53 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 47 days. Adjustments are according to the following table.
| Days | Adjustment |
|---|---|
| … | … |
| 44 | -0.91% |
| 45 | -0.93% |
| 46 | -0.95% |
| 47 | -0.97% |
| 48 | -1.00% |
| 49 | -1.02% |
| 50 | -1.04% |
| … | … |
Balancing Adjustment
0.29% 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
97%
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.