Ranking Score Explained

G'day 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.

Cymen Crick's avatar

Cymen Crick

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

98.26%

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 1956 days 68%
Mark Rosenberg 10/10 2135 days 89%
Josef Biller 9/10 2343 days 52%
Peter Bateman 10/10 2348 days 76%
Richard 10/10 2379 days 74%
Anna Herd 10/10 2471 days 68%
Rhonda McKinney 10/10 2593 days 60%
Dan Vaughan 8/10 2713 days 50%
Aida Azlan 10/10 2744 days 51%
Lisa Aitken 10/10 2836 days 45%
Joel Burken 10/10 2958 days 38%
Laina Black 9/10 3049 days 21%
Ricky White 9/10 3049 days 21%
Rob Van Proemeren 10/10 3078 days 30%
Phil & Tanya Thompson 10/10 3109 days 28%
Karrie Stephens 10/10 3109 days 28%
Jen Unsworth 10/10 3140 days 26%
Yumiko Kawano 10/10 3170 days 25%
Sabbsilein 10/10 3201 days 23%
PeterCollins 10/10 3384 days 11%
Bonnie and David Appleby 9/10 3415 days 9%
Rebecca 10/10 3415 days 9%
Cassandra Rakei 10/10 3415 days 9%
Courtney Quintrell 9/10 3422 days 5%
Katie Quantrell 9/10 3443 days 8%
johannesivarsson 10/10 3474 days 6%
jess 10/10 3566 days 0%
BrendaC 10/10 3566 days 0%
Jenn 10/10 3566 days 0%
kirstyrose 10/10 3566 days 0%
Sophie13 10/10 3688 days 27%
pbau 10/10 3719 days 27%
TheHoon 10/10 3749 days 27%
Lisa Carey 9/10 3766 days 17%
dbr 10/10 3780 days 27%
Asha 10/10 3840 days 27%
shezabear 10/10 3871 days 27%
rach_taylor 10/10 3901 days 27%
lindahealey 10/10 3901 days 27%
someone 10/10 4054 days 27%
lisabraden 10/10 4115 days 27%
T Chapman 9/10 4169 days 17%
Lynnie 9/10 4174 days 27%
smegs 10/10 4205 days 27%
saramaria 10/10 4266 days 27%
adfc416 10/10 4266 days 27%
UlsterOgre 10/10 4266 days 27%
Fred 10/10 4358 days 27%
fayz 10/10 4389 days 27%
sheppy99 10/10 4389 days 27%
fdrspins 10/10 4450 days 27%
beans44 10/10 4539 days 27%
Sue Pond 10/10 4754 days 27%
Di Christie 10/10 4784 days 27%
Towtz 10/10 4815 days 27%
ozpete 10/10 4870 days 27%
vanessa hateley 10/10 4882 days 27%
etb 10/10 4894 days 27%
Philip 8/10 4894 days 15%
emma weir 10/10 4902 days 27%
stuart and sue barnetson 10/10 5096 days 27%
Guilfords 10/10 5097 days 27%
Peter Lonsdale 10/10 5210 days 27%
Mie Toft Pedersen 10/10 5241 days 17%
Amanda McCaig 10/10 5241 days 27%

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

-2.01% Adjustment

There may be an adjustment if this experience hasn't received any reviews within the last 124 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 -1.98%
198 -1.99%
199 -2.00%
200 -2.01%
201 -2.02%
202 -2.03%
203 -2.04%

Final Ranking Score

96%

The final ranking score once any adjustments, ratings, 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.