G'day, 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
167 Valid Reviews
The Tongariro River Rafting experience has a total of 168 reviews. There are 167 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 167 valid reviews:
| Rating | Count | Percentage | |
|---|---|---|---|
| 10/10 | 143 |
|
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% |
98.02% Average
The raw data average (mean) for all the Tongariro River Rafting valid reviews is 98.02% and is based on 167 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 167 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
99.57%
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 |
|---|---|---|---|
| Madonna Thomson | 10/10 | 17 days | 100% |
| Amanda Thomson | 10/10 | 292 days | 95% |
| Peter Little | 10/10 | 321 days | 94% |
| Michaela Liff | 10/10 | 566 days | 82% |
| Kusum | 10/10 | 1023 days | 42% |
| Betty Dunn | 10/10 | 1051 days | 39% |
| Ruth | 10/10 | 1631 days | 7% |
| Gary Koh | 10/10 | 1844 days | 5% |
| Jan | 10/10 | 1874 days | 5% |
| Alison B. | 10/10 | 1874 days | 5% |
| John Olsen | 10/10 | 1905 days | 5% |
| Peter | 10/10 | 1997 days | 5% |
| Ben | 10/10 | 2027 days | 5% |
| Ian | 10/10 | 2088 days | 4% |
| Gary Walker | 10/10 | 2088 days | 4% |
| Rowella Bacwaden | 10/10 | 2119 days | 4% |
| Eileen H | 10/10 | 2178 days | 4% |
| Brad | 10/10 | 2239 days | 4% |
| Jared London | 10/10 | 2270 days | 4% |
| Helen Turner | 10/10 | 2300 days | 4% |
| James | 10/10 | 2331 days | 4% |
| Isabelle_Qc | 10/10 | 2362 days | 4% |
| Laura | 10/10 | 2392 days | 4% |
| ACE Richardson | 10/10 | 2423 days | 4% |
| Thea :-) | 10/10 | 2484 days | 4% |
| William Webb | 10/10 | 2512 days | 4% |
| Katelyn Mills | 10/10 | 2512 days | 4% |
| Mrs Smith | 10/10 | 2512 days | 4% |
| Mel | 10/10 | 2512 days | 4% |
| Wayne Smith | 10/10 | 2512 days | 4% |
| Kim | 10/10 | 2543 days | 4% |
| Songyang Liu | 10/10 | 2543 days | 4% |
| Mark Haydon | 10/10 | 2877 days | 3% |
| Kathryn Sherlock | 10/10 | 3092 days | 2% |
| Cherie Kemp | 10/10 | 3092 days | 2% |
| Renee Kemp | 10/10 | 3092 days | 2% |
| Patrick McIvor | 10/10 | 3214 days | 2% |
| Lengxi | 10/10 | 3240 days | 1% |
| Uschi Pongratz | 10/10 | 3248 days | 1% |
| Jessica Ruhland | 10/10 | 3248 days | 1% |
| Paul | 7/10 | 3253 days | 1% |
| Philip Piel | 8/10 | 3253 days | 1% |
| Chiara | 8/10 | 3253 days | 1% |
| Jess | 10/10 | 3290 days | 1% |
| TashJ | 10/10 | 3305 days | 2% |
| Funny Schutt | 10/10 | 3305 days | 2% |
| Craig McCarthy | 10/10 | 3335 days | 2% |
| Tim K | 10/10 | 3335 days | 2% |
| Jack Shearer | 10/10 | 3458 days | 2% |
| Monika M | 10/10 | 3488 days | 2% |
| Ian Wilmot | 10/10 | 3549 days | 2% |
| Rodger Lamb | 10/10 | 3580 days | 2% |
| Leah Kyllo | 10/10 | 3639 days | 1% |
| Juliet Battersby | 10/10 | 3639 days | 1% |
| Chris C | 10/10 | 3700 days | 1% |
| Jessica | 10/10 | 3792 days | 1% |
| Mike Hollows | 10/10 | 3884 days | 1% |
| Monique Hollows | 10/10 | 3945 days | 1% |
| Thomas Subritzky | 10/10 | 3945 days | 1% |
| hmsteele | 10/10 | 3973 days | 1% |
| andy godfrey | 9/10 | 4004 days | 1% |
| Chris Nisbet | 8/10 | 4004 days | 1% |
| Michelle Sanders | 9/10 | 4035 days | 1% |
| phil costello | 8/10 | 4065 days | 1% |
| Robyn Orchard | 10/10 | 4096 days | 1% |
| Gisele Phillips | 9/10 | 4096 days | 1% |
| E Wall | 10/10 | 4096 days | 1% |
| Julie | 10/10 | 4126 days | 0% |
| Little | 10/10 | 4126 days | 0% |
| Grahame Keast | 10/10 | 4157 days | 0% |
| Linda Bates | 10/10 | 4157 days | 0% |
| Morgan Buckingham | 10/10 | 4157 days | 0% |
| Bertiethebus | 10/10 | 4279 days | 0% |
| Julian Roots | 10/10 | 4310 days | 0% |
| Lynette Nicolson | 10/10 | 4369 days | 0% |
| RENs Rens | 10/10 | 4369 days | 0% |
| CKDNH | 10/10 | 4430 days | 1% |
| mattus | 9/10 | 4430 days | 1% |
| Ken | 10/10 | 4430 days | 1% |
| Kathy27 | 10/10 | 4430 days | 1% |
| ladywithplants | 9/10 | 4491 days | 1% |
| princessliz | 10/10 | 4491 days | 1% |
| lariley | 9/10 | 4491 days | 1% |
| richardp | 10/10 | 4522 days | 1% |
| prasanth03 | 10/10 | 4553 days | 1% |
| EllieW | 10/10 | 4583 days | 1% |
| Terry | 10/10 | 4644 days | 1% |
| Borderland | 10/10 | 4675 days | 1% |
| jimbob | 10/10 | 4675 days | 1% |
| mopheim | 10/10 | 4675 days | 1% |
| Mats Harstedt | 9/10 | 4684 days | 1% |
| KateS | 10/10 | 4704 days | 1% |
| RubberDuck | 10/10 | 4735 days | 1% |
| Red_Hurring | 10/10 | 4735 days | 1% |
| travelpam | 10/10 | 4735 days | 1% |
| barjjake | 9/10 | 4735 days | 1% |
| cindyd | 10/10 | 4766 days | 1% |
| webstersuk | 10/10 | 4766 days | 1% |
| pezalone | 10/10 | 4766 days | 1% |
| WiseOwl | 10/10 | 4766 days | 1% |
| mausandhari | 10/10 | 4766 days | 1% |
| Pauline | 10/10 | 4796 days | 1% |
| JadesWorld | 9/10 | 4796 days | 1% |
| utstarfish | 10/10 | 4796 days | 1% |
| johnco78 | 10/10 | 4796 days | 1% |
| jrwholey | 10/10 | 4827 days | 1% |
| ShawnM | 10/10 | 4827 days | 1% |
| Tarsh | 10/10 | 4827 days | 1% |
| lindahealey | 10/10 | 4827 days | 1% |
| campbell_steven | 10/10 | 4857 days | 1% |
| markrussell | 10/10 | 4857 days | 1% |
| Bayneer | 10/10 | 4857 days | 1% |
| jaspreetsohal86 | 10/10 | 4857 days | 1% |
| kiwiholly | 10/10 | 4857 days | 1% |
| garethd1980 | 10/10 | 4857 days | 1% |
| Mulliano | 10/10 | 4857 days | 1% |
| CathyK | 10/10 | 4888 days | 1% |
| silver | 10/10 | 4888 days | 1% |
| Meyerclan | 10/10 | 4919 days | 1% |
| poetania | 10/10 | 4949 days | 1% |
| southernboy611 | 10/10 | 4949 days | 1% |
| EvilChris | 10/10 | 4980 days | 1% |
| nia427 | 10/10 | 5010 days | 1% |
| Mags620 | 10/10 | 5010 days | 1% |
| deanblackburn | 10/10 | 5010 days | 1% |
| Heatherorchard | 10/10 | 5041 days | 1% |
| BeetleBom | 10/10 | 5041 days | 1% |
| AnnaBain | 10/10 | 5069 days | 1% |
| geezer | 10/10 | 5069 days | 1% |
| Jen | 10/10 | 5069 days | 1% |
| busheybrew | 10/10 | 5069 days | 1% |
| painter47 | 10/10 | 5100 days | 1% |
| ganbji | 9/10 | 5100 days | 1% |
| charles | 10/10 | 5131 days | 1% |
| alanos | 9/10 | 5131 days | 1% |
| teeneelz | 10/10 | 5131 days | 1% |
| Douggie | 7/10 | 5222 days | 1% |
| celticcolleen | 10/10 | 5345 days | 1% |
| MarcyMark | 10/10 | 5375 days | 1% |
| Susiekj | 10/10 | 5406 days | 1% |
| Kirsten | 10/10 | 5434 days | 1% |
| Ravi Chand | 10/10 | 5465 days | 1% |
| Sika | 10/10 | 5465 days | 1% |
| anthony mcclaren | 9/10 | 5465 days | 1% |
| menzel | 10/10 | 5479 days | 1% |
| joannaw | 10/10 | 5481 days | 1% |
| meisterbaumann | 10/10 | 5496 days | 1% |
| Stefanie Micheler | 10/10 | 5507 days | 1% |
| Aussies | 10/10 | 5526 days | 1% |
| Jake Volle | 10/10 | 5526 days | 1% |
| Jess Woods | 10/10 | 5587 days | 1% |
| emmah | 9/10 | 5623 days | 1% |
| Dave Roebuck | 10/10 | 5649 days | 1% |
| steph_m | 9/10 | 5750 days | 1% |
| JasonL | 8/10 | 5752 days | 1% |
| Tanja Kirschmann | 10/10 | 5754 days | 1% |
| MicheyJ | 10/10 | 5756 days | 1% |
| caz | 10/10 | 5777 days | 1% |
| Cilla | 10/10 | 5782 days | 1% |
| Hannah | 10/10 | 5784 days | 1% |
| karlijn schaap | 10/10 | 5861 days | 1% |
| Murray | 10/10 | 5891 days | 1% |
| Jan Burch | 9/10 | 6003 days | 1% |
| zane mirfin | 10/10 | 6060 days | 1% |
| becky | 10/10 | 6088 days | 1% |
| dave | 9/10 | 6116 days | 1% |
| shinylight | 9/10 | 6147 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
-0.30% Adjustment
There may be an adjustment if this experience hasn't received any reviews within the last 42 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 15 days. Adjustments are according to the following table.
| Days | Adjustment |
|---|---|
| … | … |
| 12 | -0.24% |
| 13 | -0.26% |
| 14 | -0.28% |
| 15 | -0.30% |
| 16 | -0.32% |
| 17 | -0.34% |
| 18 | -0.36% |
| … | … |
Balancing Adjustment
0.06% 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.