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

109 Valid Reviews

The Spellbound Ltd experience has a total of 115 reviews. There are 109 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 109 valid reviews:

Rating Count Percentage
10/10 63
58%
9/10 27
25%
8/10 12
11%
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%

93.21% Average

The raw data average (mean) for all the Spellbound Ltd valid reviews is 93.21% and is based on 109 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 109 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

97.78%

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
Kris 10/10 25 days 99.9 100%
Richard Taylor 10/10 53 days 99.55 100%
Jenny Hume 10/10 84 days 98.88 99%
Ollie Bigelow 10/10 145 days 96.67 97%
Kristine 10/10 145 days 96.67 97%
Bill Lyon 10/10 145 days 96.67 97%
Rob & Jan 10/10 145 days 96.67 97%
geex25@gmail.com 8/10 145 days 96.67 97%
Alex 10/10 176 days 95.09 95%
Tara Holmes 10/10 176 days 95.09 95%
Marg 10/10 176 days 95.09 95%
Annette and Jan 10/10 176 days 95.09 95%
Vanesa De la haza 10/10 206 days 93.28 93%
Judy 10/10 206 days 93.28 93%
Emanda 10/10 206 days 93.28 93%
Mary 10/10 206 days 93.28 93%
Paul from Australia 10/10 329 days 82.85 83%
Brad, California 10/10 390 days 75.9 76%
Sarah Killury 10/10 418 days 72.31 72%
Kristin Svensson 10/10 449 days 68.05 68%
Javier Mimbrera 10/10 571 days 48.51 48%
Dave Rollison 9/10 755 days 23.32 23%
Judit Van lanen 9/10 832 days true 19.15 19%
Thomas Nolwenn 7/10 880 days true 14.79 14%
Jilly Crew 10/10 936 days 9.01 9%
Cj Bloomfield 10/10 1059 days 5.21 5%
Stephan Kirchenbaur 8/10 1115 days true 5.97 5%
Eline Meijer 7/10 1192 days true 5.84 5%
Ruth P 10/10 1211 days 4.84 4%
villemain pascale 10/10 1241 days 4.8 4%
Shelley Adderley 10/10 1272 days 4.76 4%
Niko Stange 10/10 1455 days 4.51 4%
Abi Fielder 10/10 1514 days 4.43 4%
MARYSE DUMAS 9/10 1545 days 4.38 4%
Karen Hale 8/10 1545 days 4.38 4%
Erik Hafuer 10/10 1554 days true 5.25 5%
Bram and Laura 9/10 1576 days true 5.21 5%
Polly Rider 9/10 1580 days true 5.2 5%
Kyle S 10/10 1637 days 4.26 4%
Simon Mehlmann 10/10 1828 days true 4.8 4%
Astrid 10/10 1851 days 3.96 3%
Miriam Grund 8/10 1855 days true 4.75 4%
Brian 9/10 1971 days 3.8 3%
Martin & Carol 10/10 2002 days 3.76 3%
Christine & Andrew 9/10 2094 days 3.63 3%
Bonnie and David Appleby 10/10 2216 days 3.46 3%
Rob Walker 10/10 2216 days 3.46 3%
Brigitte 9/10 2294 days true 4.03 4%
Andreas Garbin 10/10 2294 days true 4.03 4%
cmhamlin 10/10 2306 days 3.34 3%
Fam von Hattem 9/10 2318 days true 3.99 3%
Bodil Andersen 10/10 2321 days true 3.98 3%
phudgb 10/10 2367 days 3.26 3%
Lukea 10/10 2550 days 3.01 2%
Huw Davies 9/10 2556 days true 3.6 3%
Lisa Carey 9/10 2567 days true 3.58 3%
Michael Touzer 9/10 2576 days true 3.57 3%
Lucy Wilde 9/10 2584 days true 3.55 3%
Miina Hyuonen 8/10 2592 days true 3.54 3%
Dieter Mangold 10/10 2593 days true 3.54 3%
Preben vil Helmsen 10/10 2593 days true 3.54 3%
Rachel 7/10 2595 days true 3.53 3%
Christian Apfel 9/10 2598 days true 3.53 3%
Elizabeth Gardner 9/10 2602 days true 3.52 3%
Fleur & Nils 9/10 2603 days true 3.52 3%
kiwiconvert 10/10 2610 days 2.92 2%
ivanovskyv 10/10 2641 days 2.88 2%
Willem & Lilian 9/10 2681 days true 3.39 3%
Lardy 8/10 2689 days true 3.38 3%
piseagalba 10/10 2702 days 2.8 2%
katel86 10/10 2763 days 2.72 2%
shelleyp 10/10 2886 days 2.55 2%
bdel1963 10/10 2886 days 2.55 2%
Geoff Shutt 9/10 2886 days 2.55 2%
Ralph & Marloes Meyers 8/10 2915 days true 3.01 2%
Helen Evans 7/10 2930 days true 2.98 2%
Binder 6/10 2931 days true 2.98 2%
Monica 8/10 2943 days true 2.96 2%
Vincent 9/10 2951 days true 2.95 2%
Kurmann/Kayser 9/10 2953 days true 2.95 2%
Pascal 9/10 2965 days true 2.93 2%
Kris 10/10 2965 days true 2.93 2%
Sprangers 9/10 2968 days true 2.92 2%
ianbateup 10/10 2975 days 2.42 2%
Lance 10/10 3067 days 2.3 2%
Papu 10/10 3067 days 2.3 2%
marisraneth 8/10 3281 days true 2.41 2%
john england 10/10 3312 days 1.96 1%
Mary Selfa 10/10 3336 days true 2.32 2%
snodge 9/10 3340 days 1.92 1%
PaulR 10/10 3371 days 1.88 1%
Thomas Rust 10/10 3406 days true 2.2 2%
SBlake 10/10 3651 days true 1.8 1%
KathM 8/10 3662 days true 1.78 1%
ToyalFrance 10/10 3666 days true 1.77 1%
Donna 10/10 3671 days true 1.77 1%
PeterG 9/10 3679 days true 1.75 1%
NicoleG 8/10 3679 days true 1.75 1%
ReneeA 9/10 3694 days true 1.73 1%
Ans 8/10 3719 days true 1.69 1%
Marga V 10/10 3758 days 1.35 1%
mehunt 9/10 3759 days 1.35 1%
lming60 6/10 3771 days 1.33 1%
Bryony Wilson 9/10 4026 days true 1.18 1%
Buys 7/10 4051 days true 1.14 1%
Carole Roccia 10/10 4087 days true 1.08 1%
Valeria Barouch 10/10 4128 days true 1.01 0%
Katherine 10/10 4402 days true 0.56 0%
Nissa 10/10 4411 days true 0.55 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

-0.22% 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 11 days. Adjustments are according to the following table.

Days Adjustment
8 -0.16%
9 -0.18%
10 -0.20%
11 -0.22%
12 -0.24%
13 -0.26%
14 -0.28%

Final Ranking Score

98%

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