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

98.24%

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
Dana 9/10 625 days true 48.01 100%
Holloway 10/10 630 days true 47.12 98%
Patrick Tuffin 10/10 741 days 24.86 49%
Lisa Scott 10/10 761 days 22.68 44%
Anke Vater 10/10 977 days true 8.65 14%
Joerg 10/10 978 days true 8.6 14%
Wilbert Goes 10/10 1012 days 6.09 8%
Wil Goes 10/10 1012 days true 7.31 11%
R Werder 10/10 1031 days 5.65 7%
Mark George 10/10 1044 days 5.41 7%
Maggie Lean 10/10 1103 days 4.99 6%
Corinne Mccormick 10/10 1107 days 4.98 6%
Richard Thompson 10/10 1139 days 4.94 5%
Larry Dashiell 10/10 1352 days 4.65 5%
Hannays 10/10 1533 days 4.4 4%
Mick Hanily 10/10 1718 days 4.15 4%
Bev and Rog 10/10 1718 days 4.15 4%
Amy Gately 10/10 1718 days 4.15 4%
Jason MacLeod 10/10 1746 days 4.11 4%
Ian 10/10 1808 days 4.02 3%
Jackie Pearson 10/10 1808 days 4.02 3%
ben de with 10/10 1808 days 4.02 3%
Kim 10/10 2083 days 3.65 3%
Paul Roder 10/10 2111 days 3.61 3%
Jeannie Maura 10/10 2111 days 3.61 3%
BattsNZ 10/10 2234 days 3.44 2%
Carole Carter 10/10 2440 days true 3.79 3%
huggyfamily 10/10 2508 days 3.06 1%
hands 10/10 2508 days 3.06 1%
stacey 10/10 2508 days 3.06 1%
Daniela Borter 10/10 2815 days true 3.17 2%
Sue Haward 10/10 2837 days true 3.14 2%
grahamcrox 10/10 2965 days 2.44 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

-7.28% 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 364 days. Adjustments are according to the following table.

Days Adjustment
361 -7.22%
362 -7.24%
363 -7.26%
364 -7.28%
365 -7.30%
366 -7.32%
367 -7.34%

Final Ranking Score

91%

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.