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 Riverjet NZ.

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

Riverjet NZ

Valid Reviews

65 Valid Reviews

The Riverjet NZ experience has a total of 66 reviews. There are 65 valid reviews that are included when calculating the ranking score and 1 invalid review 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 65 valid reviews:

Rating Count Percentage
10/10 54
83%
9/10 9
14%
8/10 2
3%
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%

98.00% Average

The raw data average (mean) for all the Riverjet NZ valid reviews is 98.00% and is based on 65 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

9 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 65 valid reviews, the experience has 9 face-to-face reviews collected during interviews by our team.

Below is the distribution of ratings for the 9 face-to-face reviews:

Rating Count Percentage
10/10 2
22%
9/10 6
67%
8/10 1
11%
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%

91.11% Average

The raw data average (mean) for all the Riverjet NZ face-to-face reviews is 91.11% and is based on 9 face-to-face reviews. This value is not used to calculate the ranking score and it only provided here for comparison purposes.

Weighted Average

98.16%

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
Stefan Zink 10/10 1420 days 70%
Mark Rosenberg 10/10 1598 days 92%
Josef Biller 9/10 1807 days 58%
Peter Bateman 10/10 1812 days 82%
Richard 10/10 1842 days 81%
Anna Herd 10/10 1934 days 77%
Rhonda McKinney 10/10 2056 days 71%
Dan Vaughan 8/10 2176 days 63%
Aida Azlan 10/10 2207 days 65%
Lisa Aitken 10/10 2299 days 60%
Joel Burken 10/10 2422 days 55%
Laina Black 9/10 2513 days 35%
Ricky White 9/10 2513 days 35%
Rob Van Proemeren 10/10 2542 days 49%
Phil & Tanya Thompson 10/10 2573 days 48%
Karrie Stephens 10/10 2573 days 48%
Jen Unsworth 10/10 2604 days 47%
Yumiko Kawano 10/10 2634 days 45%
Sabbsilein 10/10 2665 days 44%
PeterCollins 10/10 2848 days 36%
Bonnie and David Appleby 9/10 2879 days 34%
Rebecca 10/10 2879 days 34%
Cassandra Rakei 10/10 2879 days 34%
Courtney Quintrell 9/10 2886 days 24%
Katie Quantrell 9/10 2907 days 33%
johannesivarsson 10/10 2938 days 32%
jess 10/10 3030 days 27%
BrendaC 10/10 3030 days 27%
Jenn 10/10 3030 days 27%
kirstyrose 10/10 3030 days 27%
Sophie13 10/10 3152 days 22%
pbau 10/10 3183 days 21%
TheHoon 10/10 3213 days 19%
Lisa Carey 9/10 3230 days 13%
dbr 10/10 3244 days 18%
Asha 10/10 3304 days 15%
shezabear 10/10 3335 days 14%
rach_taylor 10/10 3365 days 12%
lindahealey 10/10 3365 days 12%
someone 10/10 3518 days 5%
lisabraden 10/10 3579 days 3%
T Chapman 9/10 3633 days 0%
Lynnie 9/10 3638 days 0%
smegs 10/10 3669 days 22%
saramaria 10/10 3730 days 22%
adfc416 10/10 3730 days 22%
UlsterOgre 10/10 3730 days 22%
Fred 10/10 3822 days 22%
fayz 10/10 3853 days 22%
sheppy99 10/10 3853 days 22%
fdrspins 10/10 3914 days 22%
beans44 10/10 4003 days 22%
Sue Pond 10/10 4218 days 22%
Di Christie 10/10 4248 days 22%
Towtz 10/10 4279 days 22%
ozpete 10/10 4334 days 22%
vanessa hateley 10/10 4346 days 22%
etb 10/10 4357 days 22%
Philip 8/10 4358 days 14%
emma weir 10/10 4365 days 22%
stuart and sue barnetson 10/10 4560 days 22%
Guilfords 10/10 4561 days 22%
Peter Lonsdale 10/10 4674 days 22%
Mie Toft Pedersen 10/10 4705 days 16%
Amanda McCaig 10/10 4705 days 22%

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 Riverjet NZ experience has plenty of reviews and does not meet the criteria for any adjustment.

Recent Reviews Adjustment

-4.09% Adjustment

There may be an adjustment if this experience hasn't received any reviews within the last 46 days. However the Riverjet NZ 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 Riverjet NZ experience has been adjusted for 200 days. Adjustments are according to the following table.

Days Adjustment
197 -4.03%
198 -4.05%
199 -4.07%
200 -4.09%
201 -4.11%
202 -4.13%
203 -4.15%

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.