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
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
98.07%
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 |
|---|---|---|---|---|---|
| Stefan Zink | 10/10 | 631 days |  |
46.94 | 100% |
| Mark Rosenberg | 10/10 | 810 days | 17.87 | 37% | |
| Josef Biller | 9/10 | 1018 days | |
7.13 | 13% |
| Peter Bateman | 10/10 | 1023 days | 5.82 | 10% | |
| Richard | 10/10 | 1054 days | 5.27 | 9% | |
| Anna Herd | 10/10 | 1146 days | 4.93 | 8% | |
| Rhonda McKinney | 10/10 | 1268 days | 4.76 | 8% | |
| Dan Vaughan | 8/10 | 1388 days | 4.6 | 8% | |
| Aida Azlan | 10/10 | 1419 days | 4.56 | 7% | |
| Lisa Aitken | 10/10 | 1511 days | 4.43 | 7% | |
| Joel Burken | 10/10 | 1633 days | 4.26 | 7% | |
| Laina Black | 9/10 | 1724 days | |
4.97 | 8% |
| Ricky White | 9/10 | 1724 days | |
4.97 | 8% |
| Rob Van Proemeren | 10/10 | 1753 days | 4.1 | 6% | |
| Phil & Tanya Thompson | 10/10 | 1784 days | 4.06 | 6% | |
| Karrie Stephens | 10/10 | 1784 days | 4.06 | 6% | |
| Jen Unsworth | 10/10 | 1815 days | 4.01 | 6% | |
| Yumiko Kawano | 10/10 | 1845 days | 3.97 | 6% | |
| Sabbsilein | 10/10 | 1876 days | 3.93 | 6% | |
| PeterCollins | 10/10 | 2059 days | 3.68 | 6% | |
| Bonnie and David Appleby | 9/10 | 2090 days | 3.64 | 5% | |
| Rebecca | 10/10 | 2090 days | 3.64 | 5% | |
| Cassandra Rakei | 10/10 | 2090 days | 3.64 | 5% | |
| Courtney Quintrell | 9/10 | 2097 days | |
4.35 | 7% |
| Katie Quantrell | 9/10 | 2118 days | 3.6 | 5% | |
| johannesivarsson | 10/10 | 2149 days | 3.56 | 5% | |
| jess | 10/10 | 2241 days | 3.43 | 5% | |
| BrendaC | 10/10 | 2241 days | 3.43 | 5% | |
| Jenn | 10/10 | 2241 days | 3.43 | 5% | |
| kirstyrose | 10/10 | 2241 days | 3.43 | 5% | |
| Sophie13 | 10/10 | 2363 days | 3.26 | 5% | |
| pbau | 10/10 | 2394 days | 3.22 | 5% | |
| TheHoon | 10/10 | 2424 days | 3.18 | 4% | |
| Lisa Carey | 9/10 | 2441 days | |
3.79 | 6% |
| dbr | 10/10 | 2455 days | 3.14 | 4% | |
| Asha | 10/10 | 2515 days | 3.05 | 4% | |
| shezabear | 10/10 | 2546 days | 3.01 | 4% | |
| rach_taylor | 10/10 | 2576 days | 2.97 | 4% | |
| lindahealey | 10/10 | 2576 days | 2.97 | 4% | |
| someone | 10/10 | 2729 days | 2.76 | 4% | |
| lisabraden | 10/10 | 2790 days | 2.68 | 3% | |
| T Chapman | 9/10 | 2844 days | |
3.12 | 4% |
| Lynnie | 9/10 | 2849 days | 2.6 | 3% | |
| smegs | 10/10 | 2880 days | 2.55 | 3% | |
| saramaria | 10/10 | 2941 days | 2.47 | 3% | |
| adfc416 | 10/10 | 2941 days | 2.47 | 3% | |
| UlsterOgre | 10/10 | 2941 days | 2.47 | 3% | |
| Fred | 10/10 | 3033 days | 2.35 | 3% | |
| fayz | 10/10 | 3064 days | 2.3 | 3% | |
| sheppy99 | 10/10 | 3064 days | 2.3 | 3% | |
| fdrspins | 10/10 | 3125 days | 2.22 | 2% | |
| beans44 | 10/10 | 3214 days | 2.1 | 2% | |
| Sue Pond | 10/10 | 3429 days | 1.8 | 1% | |
| Di Christie | 10/10 | 3459 days | 1.76 | 1% | |
| Towtz | 10/10 | 3490 days | 1.72 | 1% | |
| ozpete | 10/10 | 3546 days | 1.64 | 1% | |
| vanessa hateley | 10/10 | 3557 days | 1.63 | 1% | |
| etb | 10/10 | 3569 days | 1.61 | 1% | |
| Philip | 8/10 | 3569 days | |
1.93 | 2% |
| emma weir | 10/10 | 3577 days | 1.6 | 1% | |
| stuart and sue barnetson | 10/10 | 3771 days | 1.33 | 0% | |
| Guilfords | 10/10 | 3772 days | 1.33 | 0% | |
| Peter Lonsdale | 10/10 | 3885 days | 1.18 | 0% | |
| Mie Toft Pedersen | 10/10 | 3916 days | |
1.36 | 0% |
| Amanda McCaig | 10/10 | 3916 days | 1.14 | 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 Riverjet NZ 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 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 364 days.
The Riverjet NZ 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.