Kia ora, 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 The Weta Cave.

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.

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Cymen Crick

Rankers Owner

The Weta Cave

Valid Reviews

52 Valid Reviews

The The Weta Cave experience has a total of 52 valid reviews. There are no 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 52 valid reviews:

Rating Count Percentage
10/10 15
29%
9/10 14
27%
8/10 11
21%
7/10 7
13%
6/10 2
4%
5/10 2
4%
4/10 0
0%
3/10 0
0%
2/10 1
2%
1/10 0
0%

84.04% Average

The raw data average (mean) for all the The Weta Cave valid reviews is 84.04% and is based on 52 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

50 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 52 valid reviews, the experience has 50 face-to-face reviews collected during interviews by our team.

Below is the distribution of ratings for the 50 face-to-face reviews:

Rating Count Percentage
10/10 13
26%
9/10 14
28%
8/10 11
22%
7/10 7
14%
6/10 2
4%
5/10 2
4%
4/10 0
0%
3/10 0
0%
2/10 1
2%
1/10 0
0%

83.40% Average

The raw data average (mean) for all the The Weta Cave face-to-face reviews is 83.40% and is based on 50 face-to-face reviews. This value is not used to calculate the ranking score and it only provided here for comparison purposes.

Weighted Average

85.22%

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
Harriet and Paul 9/10 2912 days 100%
Margot 7/10 2982 days 89%
Bjorn Nielsen 9/10 2984 days 95%
Rose Guillaume 10/10 3006 days 94%
Pierre Landenne 7/10 3006 days 88%
Simeon Manz 10/10 3018 days 94%
Selma Franke 8/10 3025 days 91%
MARK CURPHEY 10/10 3035 days 92%
Sam Taylor 8/10 3036 days 91%
Dave Ellis 8/10 3036 days 91%
tinagermany111 5/10 3056 days 69%
Thomas Le Buzulier 10/10 3249 days 78%
Daniel Idiart 10/10 3254 days 77%
Liam King 9/10 3255 days 76%
Matthew Baker 9/10 3255 days 76%
Karin Karlsson 8/10 3258 days 75%
Hana Rachfalik 10/10 3261 days 77%
Anthony 8/10 3263 days 75%
Ann-Kathrin 8/10 3287 days 74%
Emma Burtscher 2/10 3295 days 34%
Jan 10/10 3298 days 74%
Briony 8/10 3299 days 73%
David Schelensky 10/10 3299 days 74%
Sascha Daub 8/10 3300 days 73%
Richard Starkeq 9/10 3300 days 73%
Robin Ings 6/10 3304 days 64%
Flo and Frieda 7/10 3323 days 67%
Pierre Planchez 9/10 3668 days 48%
Lukas Dost 10/10 3683 days 48%
Greg Little 10/10 3684 days 48%
Iana Pauga 10/10 3695 days 47%
Astrid Egesten 9/10 3733 days 44%
James Russell 8/10 3977 days 27%
Hannah Watt 7/10 3977 days 25%
Jan Legein 9/10 3978 days 27%
Herman Schulz 8/10 4003 days 25%
Rhys Williams 9/10 4025 days 24%
Dan Lawson 10/10 4041 days 23%
Paul Taylor 5/10 4359 days 0%
Cloarec Guillaume 10/10 4361 days 1%
Clodec 9/10 4361 days 1%
Michal 9/10 4370 days 0%
Roshnie 7/10 4466 days 32%
Frederick Neilsen 9/10 4468 days 34%
Frank Claassen 8/10 4727 days 34%
Kimberley Mills 9/10 4747 days 34%
Helen & Laurence 7/10 4829 days 32%
Dave van Bergen 9/10 5061 days 34%
Anika Jedelsky 10/10 5098 days 35%
Kathryn Knipe 6/10 5115 days 30%
Stefan Morris 7/10 5116 days 32%
lindam 10/10 5431 days 35%

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 The Weta Cave experience has plenty of reviews and does not meet the criteria for any adjustment.

Recent Reviews Adjustment

-4.15% Adjustment

There may be an adjustment if this experience hasn't received any reviews within the last 52 days. However the The Weta Cave 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 The Weta Cave experience has been adjusted for 200 days. Adjustments are according to the following table.

Days Adjustment
197 -4.09%
198 -4.11%
199 -4.13%
200 -4.15%
201 -4.18%
202 -4.20%
203 -4.22%

Balancing Adjustment

2.71% 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

84%

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.