Hi, 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 Tongariro River 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.
Tongariro River Rafting
Valid Reviews
171 Valid Reviews
The Tongariro River Rafting experience has a total of 172 reviews. There are 171 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 171 valid reviews:
| Rating | Count | Percentage | |
|---|---|---|---|
| 10/10 | 147 |
|
86% |
| 9/10 | 17 |
|
10% |
| 8/10 | 5 |
|
3% |
| 7/10 | 2 |
|
1% |
| 6/10 | 0 |
|
0% |
| 5/10 | 0 |
|
0% |
| 4/10 | 0 |
|
0% |
| 3/10 | 0 |
|
0% |
| 2/10 | 0 |
|
0% |
| 1/10 | 0 |
|
0% |
98.07% Average
The raw data average (mean) for all the Tongariro River Rafting valid reviews is 98.07% and is based on 171 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
14 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 171 valid reviews, the experience has 14 face-to-face reviews collected during interviews by our team.
Below is the distribution of ratings for the 14 face-to-face reviews:
| Rating | Count | Percentage | |
|---|---|---|---|
| 10/10 | 8 |
|
57% |
| 9/10 | 2 |
|
14% |
| 8/10 | 3 |
|
21% |
| 7/10 | 1 |
|
7% |
| 6/10 | 0 |
|
0% |
| 5/10 | 0 |
|
0% |
| 4/10 | 0 |
|
0% |
| 3/10 | 0 |
|
0% |
| 2/10 | 0 |
|
0% |
| 1/10 | 0 |
|
0% |
92.14% Average
The raw data average (mean) for all the Tongariro River Rafting face-to-face reviews is 92.14% and is based on 14 face-to-face reviews. This value is not used to calculate the ranking score and it only provided here for comparison purposes.
Weighted Average
99.67%
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 |
|---|---|---|---|
| Vanessa Shankaran Tasker | 10/10 | 59 days | 100% |
| Lynda B | 10/10 | 121 days | 99% |
| V Buys | 10/10 | 365 days | 93% |
| Cody | 10/10 | 396 days | 91% |
| Madonna Thomson | 10/10 | 486 days | 87% |
| Amanda Thomson | 10/10 | 761 days | 67% |
| Peter Little | 10/10 | 790 days | 65% |
| Michaela Liff | 10/10 | 1035 days | 41% |
| Kusum | 10/10 | 1492 days | 11% |
| Betty Dunn | 10/10 | 1520 days | 10% |
| Ruth | 10/10 | 2100 days | 4% |
| Gary Koh | 10/10 | 2313 days | 4% |
| Jan | 10/10 | 2343 days | 4% |
| Alison B. | 10/10 | 2343 days | 4% |
| John Olsen | 10/10 | 2374 days | 4% |
| Peter | 10/10 | 2466 days | 4% |
| Ben | 10/10 | 2496 days | 4% |
| Ian | 10/10 | 2557 days | 4% |
| Gary Walker | 10/10 | 2557 days | 4% |
| Rowella Bacwaden | 10/10 | 2588 days | 3% |
| Eileen H | 10/10 | 2647 days | 3% |
| Brad | 10/10 | 2708 days | 3% |
| Jared London | 10/10 | 2739 days | 3% |
| Helen Turner | 10/10 | 2769 days | 3% |
| James | 10/10 | 2800 days | 3% |
| Isabelle_Qc | 10/10 | 2831 days | 3% |
| Laura | 10/10 | 2861 days | 3% |
| ACE Richardson | 10/10 | 2892 days | 3% |
| Thea :-) | 10/10 | 2953 days | 3% |
| William Webb | 10/10 | 2980 days | 3% |
| Katelyn Mills | 10/10 | 2981 days | 3% |
| Mrs Smith | 10/10 | 2981 days | 3% |
| Mel | 10/10 | 2981 days | 3% |
| Wayne Smith | 10/10 | 2981 days | 3% |
| Kim | 10/10 | 3011 days | 3% |
| Songyang Liu | 10/10 | 3011 days | 3% |
| Mark Haydon | 10/10 | 3345 days | 2% |
| Kathryn Sherlock | 10/10 | 3560 days | 2% |
| Cherie Kemp | 10/10 | 3560 days | 2% |
| Renee Kemp | 10/10 | 3560 days | 2% |
| Patrick McIvor | 10/10 | 3682 days | 1% |
| Lengxi | 10/10 | 3709 days | 1% |
| Uschi Pongratz | 10/10 | 3717 days | 1% |
| Jessica Ruhland | 10/10 | 3717 days | 1% |
| Paul | 7/10 | 3722 days | 1% |
| Philip Piel | 8/10 | 3722 days | 1% |
| Chiara | 8/10 | 3722 days | 1% |
| Jess | 10/10 | 3759 days | 1% |
| TashJ | 10/10 | 3773 days | 1% |
| Funny Schutt | 10/10 | 3773 days | 1% |
| Craig McCarthy | 10/10 | 3804 days | 1% |
| Tim K | 10/10 | 3804 days | 1% |
| Jack Shearer | 10/10 | 3926 days | 1% |
| Monika M | 10/10 | 3957 days | 1% |
| Ian Wilmot | 10/10 | 4017 days | 1% |
| Rodger Lamb | 10/10 | 4048 days | 1% |
| Leah Kyllo | 10/10 | 4107 days | 0% |
| Juliet Battersby | 10/10 | 4107 days | 0% |
| Chris C | 10/10 | 4168 days | 0% |
| Jessica | 10/10 | 4260 days | 0% |
| Mike Hollows | 10/10 | 4352 days | 0% |
| Monique Hollows | 10/10 | 4413 days | 1% |
| Thomas Subritzky | 10/10 | 4414 days | 1% |
| hmsteele | 10/10 | 4442 days | 1% |
| andy godfrey | 9/10 | 4473 days | 1% |
| Chris Nisbet | 8/10 | 4473 days | 1% |
| Michelle Sanders | 9/10 | 4504 days | 1% |
| phil costello | 8/10 | 4534 days | 1% |
| Robyn Orchard | 10/10 | 4565 days | 1% |
| Gisele Phillips | 9/10 | 4565 days | 1% |
| E Wall | 10/10 | 4565 days | 1% |
| Julie | 10/10 | 4595 days | 1% |
| Little | 10/10 | 4595 days | 1% |
| Grahame Keast | 10/10 | 4626 days | 1% |
| Linda Bates | 10/10 | 4626 days | 1% |
| Morgan Buckingham | 10/10 | 4626 days | 1% |
| Bertiethebus | 10/10 | 4748 days | 1% |
| Julian Roots | 10/10 | 4779 days | 1% |
| Lynette Nicolson | 10/10 | 4838 days | 1% |
| RENs Rens | 10/10 | 4838 days | 1% |
| CKDNH | 10/10 | 4899 days | 1% |
| mattus | 9/10 | 4899 days | 1% |
| Ken | 10/10 | 4899 days | 1% |
| Kathy27 | 10/10 | 4899 days | 1% |
| ladywithplants | 9/10 | 4960 days | 1% |
| princessliz | 10/10 | 4960 days | 1% |
| lariley | 9/10 | 4960 days | 1% |
| richardp | 10/10 | 4991 days | 1% |
| prasanth03 | 10/10 | 5022 days | 1% |
| EllieW | 10/10 | 5052 days | 1% |
| Terry | 10/10 | 5113 days | 1% |
| Borderland | 10/10 | 5144 days | 1% |
| jimbob | 10/10 | 5144 days | 1% |
| mopheim | 10/10 | 5144 days | 1% |
| Mats Harstedt | 9/10 | 5153 days | 1% |
| KateS | 10/10 | 5173 days | 1% |
| RubberDuck | 10/10 | 5204 days | 1% |
| Red_Hurring | 10/10 | 5204 days | 1% |
| travelpam | 10/10 | 5204 days | 1% |
| barjjake | 9/10 | 5204 days | 1% |
| cindyd | 10/10 | 5235 days | 1% |
| webstersuk | 10/10 | 5235 days | 1% |
| pezalone | 10/10 | 5235 days | 1% |
| WiseOwl | 10/10 | 5235 days | 1% |
| mausandhari | 10/10 | 5235 days | 1% |
| Pauline | 10/10 | 5265 days | 1% |
| JadesWorld | 9/10 | 5265 days | 1% |
| utstarfish | 10/10 | 5265 days | 1% |
| johnco78 | 10/10 | 5265 days | 1% |
| jrwholey | 10/10 | 5296 days | 1% |
| ShawnM | 10/10 | 5296 days | 1% |
| Tarsh | 10/10 | 5296 days | 1% |
| lindahealey | 10/10 | 5296 days | 1% |
| campbell_steven | 10/10 | 5326 days | 1% |
| markrussell | 10/10 | 5326 days | 1% |
| Bayneer | 10/10 | 5326 days | 1% |
| jaspreetsohal86 | 10/10 | 5326 days | 1% |
| kiwiholly | 10/10 | 5326 days | 1% |
| garethd1980 | 10/10 | 5326 days | 1% |
| Mulliano | 10/10 | 5326 days | 1% |
| CathyK | 10/10 | 5357 days | 1% |
| silver | 10/10 | 5357 days | 1% |
| Meyerclan | 10/10 | 5388 days | 1% |
| poetania | 10/10 | 5418 days | 1% |
| southernboy611 | 10/10 | 5418 days | 1% |
| EvilChris | 10/10 | 5449 days | 1% |
| nia427 | 10/10 | 5479 days | 1% |
| Mags620 | 10/10 | 5479 days | 1% |
| deanblackburn | 10/10 | 5479 days | 1% |
| Heatherorchard | 10/10 | 5510 days | 1% |
| BeetleBom | 10/10 | 5510 days | 1% |
| AnnaBain | 10/10 | 5538 days | 1% |
| geezer | 10/10 | 5538 days | 1% |
| Jen | 10/10 | 5538 days | 1% |
| busheybrew | 10/10 | 5538 days | 1% |
| painter47 | 10/10 | 5569 days | 1% |
| ganbji | 9/10 | 5569 days | 1% |
| charles | 10/10 | 5600 days | 1% |
| alanos | 9/10 | 5600 days | 1% |
| teeneelz | 10/10 | 5600 days | 1% |
| Douggie | 7/10 | 5691 days | 1% |
| celticcolleen | 10/10 | 5814 days | 1% |
| MarcyMark | 10/10 | 5844 days | 1% |
| Susiekj | 10/10 | 5875 days | 1% |
| Kirsten | 10/10 | 5903 days | 1% |
| Ravi Chand | 10/10 | 5934 days | 1% |
| Sika | 10/10 | 5934 days | 1% |
| anthony mcclaren | 9/10 | 5934 days | 1% |
| menzel | 10/10 | 5948 days | 1% |
| joannaw | 10/10 | 5950 days | 1% |
| meisterbaumann | 10/10 | 5965 days | 1% |
| Stefanie Micheler | 10/10 | 5976 days | 1% |
| Aussies | 10/10 | 5995 days | 1% |
| Jake Volle | 10/10 | 5995 days | 1% |
| Jess Woods | 10/10 | 6056 days | 1% |
| emmah | 9/10 | 6092 days | 1% |
| Dave Roebuck | 10/10 | 6118 days | 1% |
| steph_m | 9/10 | 6218 days | 1% |
| JasonL | 8/10 | 6221 days | 1% |
| Tanja Kirschmann | 10/10 | 6222 days | 1% |
| MicheyJ | 10/10 | 6224 days | 1% |
| caz | 10/10 | 6245 days | 1% |
| Cilla | 10/10 | 6250 days | 1% |
| Hannah | 10/10 | 6252 days | 1% |
| karlijn schaap | 10/10 | 6329 days | 1% |
| Murray | 10/10 | 6359 days | 1% |
| Jan Burch | 9/10 | 6472 days | 1% |
| zane mirfin | 10/10 | 6528 days | 1% |
| becky | 10/10 | 6556 days | 1% |
| dave | 9/10 | 6584 days | 1% |
| shinylight | 9/10 | 6616 days | 1% |
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 Tongariro River Rafting experience has plenty of reviews and does not meet the criteria for any adjustment.
Recent Reviews Adjustment
-0.67% Adjustment
There may be an adjustment if this experience hasn't received any reviews within the last 60 days. However the Tongariro River 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 200 days. Due to the seasonal nature of many businesses, this adjustment is applied dynamically throughout the year.
The Tongariro River Rafting experience has been adjusted for 36 days. Adjustments are according to the following table.
| Days | Adjustment |
|---|---|
| … | … |
| 33 | -0.62% |
| 34 | -0.64% |
| 35 | -0.65% |
| 36 | -0.67% |
| 37 | -0.69% |
| 38 | -0.71% |
| 39 | -0.73% |
| … | … |
Balancing Adjustment
0.08% Adjustment
Every experience's review score is adjusted to balance out the disproportional number of negative reviews that are contributed.
You won't be surprised to learn that disgruntled customers are more likely to leave a review than happy ones. They are motivated to share their experience and warn others. We consider this a good thing and it's why reading the reviews is important. However we've learned it can misrepresent the experience in a more overall sense.
We apply a balancing adjustment to counteract this effect and ensure the ranking score is a more fair representation of the experience. This adjustment is applied equally to all experiences.
Final Ranking Score
99%
The final ranking score once any adjustments, ratings, and rounding has been applied. This value is recalculated each day and a short rolling average is applied. Therefore it may not be precisely accurate based on the other values presented.