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 95 reviews. There are 93 valid reviews that are included when calculating the ranking score and 2 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

94.32%

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 21 days 99.93 100%
Brad, California 10/10 82 days 98.93 99%
Sarah Killury 10/10 110 days 98.08 98%
Kristin Svensson 10/10 141 days 96.85 97%
Javier Mimbrera 10/10 263 days 89.04 89%
Dave Rollison 9/10 447 days 68.34 68%
Judit Van lanen 9/10 524 days true 67.79 67%
Thomas Nolwenn 7/10 572 days true 58.01 58%
Jilly Crew 10/10 628 days 39.56 39%
Cj Bloomfield 10/10 751 days 23.75 23%
Stephan Kirchenbaur 8/10 807 days true 21.77 21%
Eline Meijer 7/10 884 days true 14.47 14%
Ruth P 10/10 903 days 10.84 10%
villemain pascale 10/10 933 days 9.16 8%
Shelley Adderley 10/10 964 days 7.72 7%
Niko Stange 10/10 1147 days 4.93 4%
Abi Fielder 10/10 1206 days 4.85 4%
MARYSE DUMAS 9/10 1237 days 4.81 4%
Karen Hale 8/10 1237 days 4.81 4%
Erik Hafuer 10/10 1246 days true 5.75 5%
Bram and Laura 9/10 1268 days true 5.72 5%
Polly Rider 9/10 1272 days true 5.71 5%
Kyle S 10/10 1329 days 4.68 4%
Simon Mehlmann 10/10 1520 days true 5.3 4%
Astrid 10/10 1543 days 4.39 3%
Miriam Grund 8/10 1547 days true 5.26 4%
Brian 9/10 1663 days 4.22 3%
Martin & Carol 10/10 1694 days 4.18 3%
Christine & Andrew 9/10 1786 days 4.05 3%
Bonnie and David Appleby 10/10 1908 days 3.89 3%
Rob Walker 10/10 1908 days 3.89 3%
Brigitte 9/10 1986 days true 4.54 4%
Andreas Garbin 10/10 1986 days true 4.54 4%
cmhamlin 10/10 1998 days 3.76 3%
Fam von Hattem 9/10 2010 days true 4.5 3%
Bodil Andersen 10/10 2013 days true 4.49 3%
phudgb 10/10 2059 days 3.68 3%
Lukea 10/10 2242 days 3.43 2%
Huw Davies 9/10 2248 days true 4.1 3%
Lisa Carey 9/10 2259 days true 4.09 3%
Michael Touzer 9/10 2268 days true 4.07 3%
Lucy Wilde 9/10 2276 days true 4.06 3%
Miina Hyuonen 8/10 2284 days true 4.05 3%
Dieter Mangold 10/10 2285 days true 4.04 3%
Preben vil Helmsen 10/10 2285 days true 4.04 3%
Rachel 7/10 2287 days true 4.04 3%
Christian Apfel 9/10 2290 days true 4.04 3%
Elizabeth Gardner 9/10 2294 days true 4.03 3%
Fleur & Nils 9/10 2295 days true 4.03 3%
kiwiconvert 10/10 2302 days 3.35 2%
ivanovskyv 10/10 2333 days 3.3 2%
Willem & Lilian 9/10 2373 days true 3.9 3%
Lardy 8/10 2381 days true 3.89 3%
piseagalba 10/10 2394 days 3.22 2%
katel86 10/10 2455 days 3.14 2%
shelleyp 10/10 2578 days 2.97 2%
bdel1963 10/10 2578 days 2.97 2%
Geoff Shutt 9/10 2578 days 2.97 2%
Ralph & Marloes Meyers 8/10 2607 days true 3.51 2%
Helen Evans 7/10 2622 days true 3.49 2%
Binder 6/10 2623 days true 3.49 2%
Monica 8/10 2635 days true 3.47 2%
Vincent 9/10 2643 days true 3.46 2%
Kurmann/Kayser 9/10 2645 days true 3.45 2%
Pascal 9/10 2657 days true 3.43 2%
Kris 10/10 2657 days true 3.43 2%
Sprangers 9/10 2660 days true 3.43 2%
ianbateup 10/10 2667 days 2.85 2%
Lance 10/10 2759 days 2.72 2%
Papu 10/10 2759 days 2.72 2%
marisraneth 8/10 2973 days true 2.91 2%
john england 10/10 3004 days 2.38 1%
Mary Selfa 10/10 3028 days true 2.82 2%
snodge 9/10 3032 days 2.35 1%
PaulR 10/10 3063 days 2.3 1%
Thomas Rust 10/10 3098 days true 2.71 2%
SBlake 10/10 3343 days true 2.3 1%
KathM 8/10 3355 days true 2.28 1%
ToyalFrance 10/10 3358 days true 2.28 1%
Donna 10/10 3364 days true 2.27 1%
PeterG 9/10 3371 days true 2.26 1%
NicoleG 8/10 3371 days true 2.26 1%
ReneeA 9/10 3386 days true 2.23 1%
Ans 8/10 3412 days true 2.19 1%
Marga V 10/10 3451 days 1.77 1%
mehunt 9/10 3451 days 1.77 1%
lming60 6/10 3464 days 1.75 1%
Bryony Wilson 9/10 3718 days true 1.69 1%
Buys 7/10 3743 days true 1.65 1%
Carole Roccia 10/10 3779 days true 1.59 1%
Valeria Barouch 10/10 3820 days true 1.52 0%
Katherine 10/10 4094 days true 1.07 0%
Nissa 10/10 4103 days true 1.06 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

-0.36% 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 18 days. Adjustments are according to the following table.

Days Adjustment
15 -0.30%
16 -0.32%
17 -0.34%
18 -0.36%
19 -0.38%
20 -0.40%
21 -0.42%

Final Ranking Score

94%

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.