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 Buller Canyon Jet.

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

Buller Canyon Jet

Valid Reviews

33 Valid Reviews

The Buller Canyon Jet experience has a total of 33 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 33 valid reviews:

Rating Count Percentage
10/10 32
97%
9/10 1
3%
8/10 0
0%
7/10 0
0%
6/10 0
0%
5/10 0
0%
4/10 0
0%
3/10 0
0%
2/10 0
0%
1/10 0
0%

99.70% Average

The raw data average (mean) for all the Buller Canyon Jet valid reviews is 99.70% and is based on 33 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

8 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 33 valid reviews, the experience has 8 face-to-face reviews collected during interviews by our team.

Below is the distribution of ratings for the 8 face-to-face reviews:

Rating Count Percentage
10/10 7
88%
9/10 1
13%
8/10 0
0%
7/10 0
0%
6/10 0
0%
5/10 0
0%
4/10 0
0%
3/10 0
0%
2/10 0
0%
1/10 0
0%

98.75% Average

The raw data average (mean) for all the Buller Canyon Jet face-to-face reviews is 98.75% and is based on 8 face-to-face reviews. This value is not used to calculate the ranking score and it only provided here for comparison purposes.

Weighted Average

98.42%

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
Dana 9/10 361 days 100%
Holloway 10/10 366 days 99%
Patrick Tuffin 10/10 477 days 66%
Lisa Scott 10/10 497 days 63%
Anke Vater 10/10 713 days 33%
Joerg 10/10 714 days 33%
Wilbert Goes 10/10 748 days 23%
Wil Goes 10/10 748 days 28%
R Werder 10/10 767 days 21%
Mark George 10/10 780 days 19%
Maggie Lean 10/10 839 days 14%
Corinne Mccormick 10/10 843 days 13%
Richard Thompson 10/10 875 days 11%
Larry Dashiell 10/10 1088 days 2%
Hannays 10/10 1269 days 2%
Mick Hanily 10/10 1454 days 2%
Bev and Rog 10/10 1454 days 2%
Amy Gately 10/10 1454 days 2%
Jason MacLeod 10/10 1482 days 2%
Ian 10/10 1544 days 2%
Jackie Pearson 10/10 1544 days 2%
ben de with 10/10 1544 days 2%
Kim 10/10 1819 days 1%
Paul Roder 10/10 1847 days 1%
Jeannie Maura 10/10 1847 days 1%
BattsNZ 10/10 1970 days 1%
Carole Carter 10/10 2176 days 2%
huggyfamily 10/10 2244 days 1%
hands 10/10 2244 days 1%
stacey 10/10 2244 days 1%
Daniela Borter 10/10 2551 days 1%
Sue Haward 10/10 2573 days 1%
grahamcrox 10/10 2701 days 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 Buller Canyon Jet experience has plenty of reviews and does not meet the criteria for any adjustment.

Recent Reviews Adjustment

-4.90% Adjustment

There may be an adjustment if an experience hasn't received any reviews within the last 60 days. However the Buller Canyon Jet 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 Buller Canyon Jet experience has been adjusted for 245 days. Adjustments are according to the following table.

Days Adjustment
242 -4.84%
243 -4.86%
244 -4.88%
245 -4.90%
246 -4.92%
247 -4.94%
248 -4.96%

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.