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 Rotorua Rafting.

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

Rotorua Rafting

Valid Reviews

37 Valid Reviews

The Rotorua Rafting experience has a total of 37 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 37 valid reviews:

Rating Count Percentage
10/10 20
54%
9/10 4
11%
8/10 9
24%
7/10 3
8%
6/10 1
3%
5/10 0
0%
4/10 0
0%
3/10 0
0%
2/10 0
0%
1/10 0
0%

90.54% Average

The raw data average (mean) for all the Rotorua Rafting valid reviews is 90.54% and is based on 37 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

33 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 37 valid reviews, the experience has 33 face-to-face reviews collected during interviews by our team.

Below is the distribution of ratings for the 33 face-to-face reviews:

Rating Count Percentage
10/10 17
52%
9/10 3
9%
8/10 9
27%
7/10 3
9%
6/10 1
3%
5/10 0
0%
4/10 0
0%
3/10 0
0%
2/10 0
0%
1/10 0
0%

89.70% Average

The raw data average (mean) for all the Rotorua Rafting face-to-face reviews is 89.70% and is based on 33 face-to-face reviews. This value is not used to calculate the ranking score and it only provided here for comparison purposes.

Weighted Average

92.74%

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
Antonia Ellenrieder 10/10 672 days true 40.02 100%
Benedikt Suupt 10/10 698 days true 35.97 89%
Chas Branson 10/10 714 days true 33.6 82%
Chantal Compagner 8/10 960 days true 9.47 14%
Rolf 10/10 970 days true 8.97 13%
Laura Schratt 10/10 973 days true 8.83 12%
Marie Bocquier 10/10 975 days true 8.74 12%
Stefan Thalhammer 8/10 980 days true 8.51 11%
Erika Tarant 8/10 980 days true 8.51 11%
Mikael Thyselius 10/10 980 days 7.1 7%
Madeleine Panholzer 10/10 985 days true 8.3 11%
Luca Staudt 10/10 987 days true 8.22 11%
Severin Knegsch 10/10 994 days true 7.94 10%
Raylene Luison 6/10 994 days true 7.94 10%
Matt Irwin 9/10 997 days true 7.83 9%
Luisa Mathes 7/10 1003 days true 7.61 9%
Katharina Balzer 10/10 1005 days true 7.54 9%
Lennox 8/10 1006 days true 7.51 9%
Sebastian 7/10 1006 days true 7.51 9%
Jaquein Bucholz 10/10 1006 days true 7.51 9%
Chiara 8/10 1006 days true 7.51 9%
Annika Weber 9/10 1006 days true 7.51 9%
Antoine Boudin 8/10 1006 days true 7.51 9%
Cariotta Kemper 10/10 1006 days true 7.51 9%
Karina Therkildsen 10/10 1011 days true 7.34 8%
Timon Flick 10/10 1015 days true 7.22 8%
Liza Braun 10/10 1019 days 5.92 4%
Alice Melker 7/10 1031 days true 6.78 6%
Thomas Werner 9/10 1035 days true 6.68 6%
Christian Reimund 10/10 1036 days true 6.66 6%
Tom Theuer 8/10 1036 days true 6.66 6%
Joshua Hortkorn 8/10 1059 days true 6.25 5%
Thomas Stuber 10/10 1068 days true 6.14 5%
Malin Meier 10/10 1070 days true 6.12 5%
Anika and Mike 8/10 1074 days true 6.08 5%
Julia Waenninger 9/10 1086 days 5.01 1%
Emma Shanley 10/10 1472 days 4.48 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 Rotorua Rafting 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 Rotorua Rafting 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 Rotorua Rafting 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

85%

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.