Ranking Score Explained

Hi there, 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.

Nick Morrison's avatar

Nick Morrison

Rankers owner

Spellbound Ltd

Valid Reviews

93 Valid Reviews

The Spellbound Ltd experience has a total of 96 reviews. There are 93 valid reviews that are included when calculating the ranking score and 3 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 93 valid reviews:

Rating Count Percentage
10/10 48
52%
9/10 27
29%
8/10 11
12%
7/10 5
5%
6/10 2
2%
5/10 0
0%
4/10 0
0%
3/10 0
0%
2/10 0
0%
1/10 0
0%

92.26% Average

The raw data average (mean) for all the Spellbound Ltd valid reviews is 92.26% and is based on 93 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 93 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

94.87%

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 Face-to-Face Weight Relative Weight
Paul from Australia 10/10 111 days 98.05 100%
Brad, California 10/10 172 days 95.31 97%
Sarah Killury 10/10 199 days 93.72 96%
Kristin Svensson 10/10 230 days 91.62 93%
Javier Mimbrera 10/10 352 days 80.37 82%
Dave Rollison 9/10 536 days 54.47 55%
Judit Van lanen 9/10 614 days true 49.99 51%
Thomas Nolwenn 7/10 662 days true 41.65 42%
Jilly Crew 10/10 717 days 27.64 28%
Cj Bloomfield 10/10 840 days 15.3 15%
Stephan Kirchenbaur 8/10 897 days true 13.45 13%
Eline Meijer 7/10 974 days true 8.78 8%
Ruth P 10/10 992 days 6.68 6%
villemain pascale 10/10 1023 days 5.82 5%
Shelley Adderley 10/10 1053 days 5.28 5%
Niko Stange 10/10 1236 days 4.81 4%
Abi Fielder 10/10 1295 days 4.73 4%
MARYSE DUMAS 9/10 1326 days 4.68 4%
Karen Hale 8/10 1326 days 4.68 4%
Erik Hafuer 10/10 1336 days true 5.6 5%
Bram and Laura 9/10 1358 days true 5.57 5%
Polly Rider 9/10 1362 days true 5.56 5%
Kyle S 10/10 1418 days 4.56 4%
Simon Mehlmann 10/10 1610 days true 5.15 4%
Astrid 10/10 1633 days 4.26 3%
Miriam Grund 8/10 1637 days true 5.11 4%
Brian 9/10 1753 days 4.1 3%
Martin & Carol 10/10 1784 days 4.06 3%
Christine & Andrew 9/10 1876 days 3.93 3%
Bonnie and David Appleby 10/10 1998 days 3.76 3%
Rob Walker 10/10 1998 days 3.76 3%
Brigitte 9/10 2076 days true 4.39 4%
Andreas Garbin 10/10 2076 days true 4.39 4%
cmhamlin 10/10 2088 days 3.64 3%
Fam von Hattem 9/10 2100 days true 4.35 4%
Bodil Andersen 10/10 2103 days true 4.34 4%
phudgb 10/10 2149 days 3.56 3%
Lukea 10/10 2332 days 3.31 2%
Huw Davies 9/10 2338 days true 3.96 3%
Lisa Carey 9/10 2349 days true 3.94 3%
Michael Touzer 9/10 2358 days true 3.92 3%
Lucy Wilde 9/10 2366 days true 3.91 3%
Miina Hyuonen 8/10 2374 days true 3.9 3%
Dieter Mangold 10/10 2375 days true 3.9 3%
Preben vil Helmsen 10/10 2375 days true 3.9 3%
Rachel 7/10 2377 days true 3.89 3%
Christian Apfel 9/10 2380 days true 3.89 3%
Elizabeth Gardner 9/10 2384 days true 3.88 3%
Fleur & Nils 9/10 2385 days true 3.88 3%
kiwiconvert 10/10 2392 days 3.22 2%
ivanovskyv 10/10 2423 days 3.18 2%
Willem & Lilian 9/10 2463 days true 3.75 3%
Lardy 8/10 2471 days true 3.74 3%
piseagalba 10/10 2484 days 3.1 2%
katel86 10/10 2545 days 3.01 2%
shelleyp 10/10 2668 days 2.85 2%
bdel1963 10/10 2668 days 2.85 2%
Geoff Shutt 9/10 2668 days 2.85 2%
Ralph & Marloes Meyers 8/10 2697 days true 3.37 3%
Helen Evans 7/10 2712 days true 3.34 3%
Binder 6/10 2713 days true 3.34 3%
Monica 8/10 2725 days true 3.32 2%
Vincent 9/10 2733 days true 3.31 2%
Kurmann/Kayser 9/10 2735 days true 3.3 2%
Pascal 9/10 2747 days true 3.28 2%
Kris 10/10 2747 days true 3.28 2%
Sprangers 9/10 2750 days true 3.28 2%
ianbateup 10/10 2757 days 2.72 2%
Lance 10/10 2849 days 2.6 2%
Papu 10/10 2849 days 2.6 2%
marisraneth 8/10 3063 days true 2.76 2%
john england 10/10 3094 days 2.26 1%
Mary Selfa 10/10 3118 days true 2.67 2%
snodge 9/10 3122 days 2.22 1%
PaulR 10/10 3153 days 2.18 1%
Thomas Rust 10/10 3188 days true 2.56 2%
SBlake 10/10 3433 days true 2.16 1%
KathM 8/10 3444 days true 2.14 1%
ToyalFrance 10/10 3448 days true 2.13 1%
Donna 10/10 3453 days true 2.12 1%
PeterG 9/10 3461 days true 2.11 1%
NicoleG 8/10 3461 days true 2.11 1%
ReneeA 9/10 3476 days true 2.09 1%
Ans 8/10 3501 days true 2.04 1%
Marga V 10/10 3540 days 1.65 1%
mehunt 9/10 3540 days 1.65 1%
lming60 6/10 3553 days 1.63 1%
Bryony Wilson 9/10 3808 days true 1.54 1%
Buys 7/10 3833 days true 1.5 1%
Carole Roccia 10/10 3869 days true 1.44 1%
Valeria Barouch 10/10 3910 days true 1.37 0%
Katherine 10/10 4184 days true 0.92 0%
Nissa 10/10 4193 days true 0.91 0%

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

-2.14% Adjustment

There may be an adjustment if an experience hasn't received any reviews within the last 60 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 364 days.

The Spellbound Ltd experience has been adjusted for 107 days. Adjustments are according to the following table.

Days Adjustment
104 -2.08%
105 -2.10%
106 -2.12%
107 -2.14%
108 -2.16%
109 -2.18%
110 -2.20%

Final Ranking Score

93%

The final ranking score once adjustments and rounding has been applied. This value is cached and recalculated each day. Therefore it may not be precisely accurate based on the other values presented.

If you have any questions or comments about our ranking score calculation please get in touch at info@rankers.co.nz.