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

115 Valid Reviews

The Spellbound Ltd experience has a total of 121 reviews. There are 115 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 115 valid reviews:

Rating Count Percentage
10/10 68
59%
9/10 28
24%
8/10 12
10%
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%

93.48% Average

The raw data average (mean) for all the Spellbound Ltd valid reviews is 93.48% and is based on 115 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 115 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

97.96%

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
Ricardo Nigro 10/10 77 days 99.06 100%
beryl maehe rogers 10/10 107 days 98.19 99%
Carlos Madrid 9/10 107 days 98.19 99%
maryann de la haye 10/10 107 days 98.19 99%
Kris 10/10 138 days 96.98 98%
Jean-Martial MARENNE 10/10 138 days 96.98 98%
Eleri 10/10 138 days 96.98 98%
Richard Taylor 10/10 166 days 95.63 97%
Jenny Hume 10/10 197 days 93.85 95%
Ollie Bigelow 10/10 258 days 89.45 90%
Kristine 10/10 258 days 89.45 90%
Bill Lyon 10/10 258 days 89.45 90%
Rob & Jan 10/10 258 days 89.45 90%
geex25@gmail.com 8/10 258 days 89.45 90%
Alex 10/10 289 days 86.77 88%
Tara Holmes 10/10 289 days 86.77 88%
Marg 10/10 289 days 86.77 88%
Annette and Jan 10/10 289 days 86.77 88%
Vanesa De la haza 10/10 319 days 83.87 85%
Judy 10/10 319 days 83.87 85%
Emanda 10/10 319 days 83.87 85%
Mary 10/10 319 days 83.87 85%
Paul from Australia 10/10 442 days 69.04 70%
Brad, California 10/10 503 days 59.91 60%
Sarah Killury 10/10 531 days 55.32 56%
Kristin Svensson 10/10 562 days 50.02 50%
Javier Mimbrera 10/10 684 days 31.77 32%
Dave Rollison 9/10 868 days 13.17 13%
Judit Van lanen 9/10 945 days true 10.28 10%
Thomas Nolwenn 7/10 993 days true 7.98 8%
Jilly Crew 10/10 1049 days 5.34 5%
Cj Bloomfield 10/10 1172 days 4.89 5%
Stephan Kirchenbaur 8/10 1228 days true 5.78 5%
Eline Meijer 7/10 1305 days true 5.65 5%
Ruth P 10/10 1324 days 4.69 4%
villemain pascale 10/10 1354 days 4.65 4%
Shelley Adderley 10/10 1385 days 4.6 4%
Niko Stange 10/10 1568 days 4.35 4%
Abi Fielder 10/10 1627 days 4.27 4%
MARYSE DUMAS 9/10 1658 days 4.23 4%
Karen Hale 8/10 1658 days 4.23 4%
Erik Hafuer 10/10 1667 days true 5.06 5%
Bram and Laura 9/10 1689 days true 5.02 5%
Polly Rider 9/10 1693 days true 5.02 5%
Kyle S 10/10 1750 days 4.1 4%
Simon Mehlmann 10/10 1941 days true 4.61 4%
Astrid 10/10 1964 days 3.81 3%
Miriam Grund 8/10 1968 days true 4.56 4%
Brian 9/10 2084 days 3.65 3%
Martin & Carol 10/10 2115 days 3.6 3%
Christine & Andrew 9/10 2207 days 3.48 3%
Bonnie and David Appleby 10/10 2329 days 3.31 3%
Rob Walker 10/10 2329 days 3.31 3%
Brigitte 9/10 2407 days true 3.84 4%
Andreas Garbin 10/10 2407 days true 3.84 4%
cmhamlin 10/10 2419 days 3.19 3%
Fam von Hattem 9/10 2431 days true 3.8 3%
Bodil Andersen 10/10 2434 days true 3.8 3%
phudgb 10/10 2480 days 3.1 3%
Lukea 10/10 2663 days 2.85 3%
Huw Davies 9/10 2669 days true 3.41 3%
Lisa Carey 9/10 2680 days true 3.39 3%
Michael Touzer 9/10 2689 days true 3.38 3%
Lucy Wilde 9/10 2697 days true 3.37 3%
Miina Hyuonen 8/10 2705 days true 3.35 3%
Dieter Mangold 10/10 2706 days true 3.35 3%
Preben vil Helmsen 10/10 2706 days true 3.35 3%
Rachel 7/10 2708 days true 3.35 3%
Christian Apfel 9/10 2711 days true 3.34 3%
Elizabeth Gardner 9/10 2715 days true 3.34 3%
Fleur & Nils 9/10 2716 days true 3.34 3%
kiwiconvert 10/10 2723 days 2.77 2%
ivanovskyv 10/10 2754 days 2.73 2%
Willem & Lilian 9/10 2794 days true 3.21 3%
Lardy 8/10 2802 days true 3.19 3%
piseagalba 10/10 2815 days 2.64 2%
katel86 10/10 2876 days 2.56 2%
shelleyp 10/10 2999 days 2.39 2%
bdel1963 10/10 2999 days 2.39 2%
Geoff Shutt 9/10 2999 days 2.39 2%
Ralph & Marloes Meyers 8/10 3028 days true 2.82 2%
Helen Evans 7/10 3043 days true 2.8 2%
Binder 6/10 3044 days true 2.8 2%
Monica 8/10 3056 days true 2.78 2%
Vincent 9/10 3064 days true 2.76 2%
Kurmann/Kayser 9/10 3066 days true 2.76 2%
Pascal 9/10 3078 days true 2.74 2%
Kris 10/10 3078 days true 2.74 2%
Sprangers 9/10 3081 days true 2.74 2%
ianbateup 10/10 3088 days 2.27 2%
Lance 10/10 3180 days 2.14 2%
Papu 10/10 3180 days 2.14 2%
marisraneth 8/10 3394 days true 2.22 2%
john england 10/10 3425 days 1.81 1%
Mary Selfa 10/10 3449 days true 2.13 2%
snodge 9/10 3453 days 1.77 1%
PaulR 10/10 3484 days 1.73 1%
Thomas Rust 10/10 3519 days true 2.02 2%
SBlake 10/10 3764 days true 1.61 1%
KathM 8/10 3775 days true 1.59 1%
ToyalFrance 10/10 3779 days true 1.59 1%
Donna 10/10 3784 days true 1.58 1%
PeterG 9/10 3792 days true 1.57 1%
NicoleG 8/10 3792 days true 1.57 1%
ReneeA 9/10 3807 days true 1.54 1%
Ans 8/10 3832 days true 1.5 1%
Marga V 10/10 3871 days 1.2 1%
mehunt 9/10 3872 days 1.2 1%
lming60 6/10 3885 days 1.18 1%
Bryony Wilson 9/10 4139 days true 1.0 1%
Buys 7/10 4164 days true 0.96 1%
Carole Roccia 10/10 4200 days true 0.9 1%
Valeria Barouch 10/10 4241 days true 0.83 0%
Katherine 10/10 4515 days true 0.38 0%
Nissa 10/10 4524 days true 0.36 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

-0.62% 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 31 days. Adjustments are according to the following table.

Days Adjustment
28 -0.56%
29 -0.58%
30 -0.60%
31 -0.62%
32 -0.64%
33 -0.66%
34 -0.68%

Final Ranking Score

97%

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.

Love Christchurch