Hi, 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
96.53%
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 |
|---|---|---|---|
| Moira and Tom | 10/10 | 2016 days | 100% |
| Kylee Langdon | 9/10 | 2016 days | 99% |
| Nikki Bristol | 10/10 | 2047 days | 99% |
| shelagh gastrell | 10/10 | 2047 days | 99% |
| Clive Williams | 10/10 | 2108 days | 96% |
| Robin Mooring | 10/10 | 2108 days | 96% |
| Paddy O\\\'Connor | 9/10 | 2108 days | 95% |
| Liz Wade | 10/10 | 2136 days | 95% |
| Trevor | 10/10 | 2137 days | 95% |
| Linda | 10/10 | 2168 days | 93% |
| Pukerooster | 10/10 | 2168 days | 93% |
| T Alan Hatton | 10/10 | 2199 days | 92% |
| Emile | 10/10 | 2229 days | 91% |
| GODARD Tuatini | 10/10 | 2260 days | 89% |
| Ella | 10/10 | 2260 days | 89% |
| Sarah & Paul | 10/10 | 2260 days | 89% |
| Mary | 10/10 | 2321 days | 87% |
| Ricardo Nigro | 10/10 | 2413 days | 83% |
| beryl maehe rogers | 10/10 | 2443 days | 81% |
| Carlos Madrid | 9/10 | 2443 days | 81% |
| maryann de la haye | 10/10 | 2443 days | 81% |
| Kris | 10/10 | 2474 days | 80% |
| Jean-Martial MARENNE | 10/10 | 2474 days | 80% |
| Eleri | 10/10 | 2474 days | 80% |
| Richard Taylor | 10/10 | 2502 days | 79% |
| Jenny Hume | 10/10 | 2533 days | 77% |
| Ollie Bigelow | 10/10 | 2594 days | 75% |
| Kristine | 10/10 | 2594 days | 75% |
| Bill Lyon | 10/10 | 2594 days | 75% |
| Rob & Jan | 10/10 | 2594 days | 75% |
| geex25@gmail.com | 8/10 | 2594 days | 73% |
| Alex | 10/10 | 2625 days | 73% |
| Tara Holmes | 10/10 | 2625 days | 73% |
| Marg | 10/10 | 2625 days | 73% |
| Annette and Jan | 10/10 | 2625 days | 73% |
| Vanesa De la haza | 10/10 | 2655 days | 72% |
| Judy | 10/10 | 2655 days | 72% |
| Emanda | 10/10 | 2655 days | 72% |
| Mary | 10/10 | 2655 days | 72% |
| Paul from Australia | 10/10 | 2778 days | 67% |
| Brad, California | 10/10 | 2839 days | 64% |
| Sarah Killury | 10/10 | 2866 days | 63% |
| Kristin Svensson | 10/10 | 2897 days | 62% |
| Javier Mimbrera | 10/10 | 3019 days | 56% |
| Dave Rollison | 9/10 | 3203 days | 48% |
| Judit Van lanen | 9/10 | 3281 days | 40% |
| Thomas Nolwenn | 7/10 | 3329 days | 35% |
| Jilly Crew | 10/10 | 3384 days | 40% |
| Cj Bloomfield | 10/10 | 3507 days | 35% |
| Stephan Kirchenbaur | 8/10 | 3564 days | 28% |
| Eline Meijer | 7/10 | 3641 days | 24% |
| Ruth P | 10/10 | 3659 days | 28% |
| villemain pascale | 10/10 | 3690 days | 27% |
| Shelley Adderley | 10/10 | 3720 days | 26% |
| Niko Stange | 10/10 | 3903 days | 18% |
| Abi Fielder | 10/10 | 3962 days | 15% |
| MARYSE DUMAS | 9/10 | 3993 days | 13% |
| Karen Hale | 8/10 | 3993 days | 13% |
| Erik Hafuer | 10/10 | 4003 days | 12% |
| Bram and Laura | 9/10 | 4025 days | 11% |
| Polly Rider | 9/10 | 4029 days | 10% |
| Kyle S | 10/10 | 4085 days | 10% |
| Simon Mehlmann | 10/10 | 4277 days | 1% |
| Astrid | 10/10 | 4300 days | 0% |
| Miriam Grund | 8/10 | 4304 days | 0% |
| Brian | 9/10 | 4420 days | 19% |
| Martin & Carol | 10/10 | 4451 days | 19% |
| Christine & Andrew | 9/10 | 4543 days | 19% |
| Bonnie and David Appleby | 10/10 | 4665 days | 19% |
| Rob Walker | 10/10 | 4665 days | 19% |
| Brigitte | 9/10 | 4743 days | 17% |
| Andreas Garbin | 10/10 | 4743 days | 17% |
| cmhamlin | 10/10 | 4755 days | 19% |
| Fam von Hattem | 9/10 | 4767 days | 17% |
| Bodil Andersen | 10/10 | 4770 days | 17% |
| phudgb | 10/10 | 4816 days | 19% |
| Lukea | 10/10 | 4999 days | 19% |
| Huw Davies | 9/10 | 5005 days | 17% |
| Lisa Carey | 9/10 | 5016 days | 17% |
| Michael Touzer | 9/10 | 5025 days | 17% |
| Lucy Wilde | 9/10 | 5033 days | 17% |
| Miina Hyuonen | 8/10 | 5041 days | 16% |
| Dieter Mangold | 10/10 | 5042 days | 17% |
| Preben vil Helmsen | 10/10 | 5042 days | 17% |
| Rachel | 7/10 | 5044 days | 15% |
| Christian Apfel | 9/10 | 5047 days | 17% |
| Elizabeth Gardner | 9/10 | 5051 days | 17% |
| Fleur & Nils | 9/10 | 5052 days | 17% |
| kiwiconvert | 10/10 | 5059 days | 19% |
| ivanovskyv | 10/10 | 5090 days | 19% |
| Willem & Lilian | 9/10 | 5130 days | 17% |
| Lardy | 8/10 | 5138 days | 16% |
| piseagalba | 10/10 | 5151 days | 19% |
| katel86 | 10/10 | 5212 days | 19% |
| shelleyp | 10/10 | 5335 days | 19% |
| bdel1963 | 10/10 | 5335 days | 19% |
| Geoff Shutt | 9/10 | 5335 days | 19% |
| Ralph & Marloes Meyers | 8/10 | 5364 days | 16% |
| Helen Evans | 7/10 | 5379 days | 15% |
| Binder | 6/10 | 5380 days | 14% |
| Monica | 8/10 | 5392 days | 16% |
| Vincent | 9/10 | 5400 days | 17% |
| Kurmann/Kayser | 9/10 | 5402 days | 17% |
| Pascal | 9/10 | 5414 days | 17% |
| Kris | 10/10 | 5414 days | 17% |
| Sprangers | 9/10 | 5417 days | 17% |
| ianbateup | 10/10 | 5424 days | 19% |
| Lance | 10/10 | 5516 days | 19% |
| Papu | 10/10 | 5516 days | 19% |
| marisraneth | 8/10 | 5730 days | 16% |
| john england | 10/10 | 5761 days | 19% |
| Mary Selfa | 10/10 | 5785 days | 17% |
| snodge | 9/10 | 5789 days | 19% |
| PaulR | 10/10 | 5820 days | 19% |
| Thomas Rust | 10/10 | 5855 days | 17% |
| SBlake | 10/10 | 6100 days | 17% |
| KathM | 8/10 | 6111 days | 16% |
| ToyalFrance | 10/10 | 6115 days | 17% |
| Donna | 10/10 | 6120 days | 17% |
| PeterG | 9/10 | 6128 days | 17% |
| NicoleG | 8/10 | 6128 days | 16% |
| ReneeA | 9/10 | 6143 days | 17% |
| Ans | 8/10 | 6168 days | 16% |
| Marga V | 10/10 | 6207 days | 19% |
| mehunt | 9/10 | 6207 days | 19% |
| lming60 | 6/10 | 6220 days | 16% |
| Bryony Wilson | 9/10 | 6475 days | 17% |
| Buys | 7/10 | 6500 days | 15% |
| Carole Roccia | 10/10 | 6536 days | 17% |
| Valeria Barouch | 10/10 | 6577 days | 17% |
| Katherine | 10/10 | 6851 days | 17% |
| Nissa | 10/10 | 6860 days | 17% |
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
-4.07% Adjustment
There may be an adjustment if this experience hasn't received any reviews within the last 42 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 | -4.01% |
| 198 | -4.03% |
| 199 | -4.05% |
| 200 | -4.07% |
| 201 | -4.09% |
| 202 | -4.11% |
| 203 | -4.13% |
| … | … |
Balancing Adjustment
0.70% 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.