Kia ora, 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
170 Valid Reviews
The Tongariro River Rafting experience has a total of 171 reviews. There are 170 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 170 valid reviews:
| Rating | Count | Percentage | |
|---|---|---|---|
| 10/10 | 146 |
|
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% |
98.06% Average
The raw data average (mean) for all the Tongariro River Rafting valid reviews is 98.06% and is based on 170 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 170 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
99.68%
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 |
|---|---|---|---|
| Lynda B | 10/10 | 17 days | 100% |
| V Buys | 10/10 | 261 days | 96% |
| Cody | 10/10 | 292 days | 95% |
| Madonna Thomson | 10/10 | 382 days | 92% |
| Amanda Thomson | 10/10 | 657 days | 75% |
| Peter Little | 10/10 | 686 days | 73% |
| Michaela Liff | 10/10 | 931 days | 51% |
| Kusum | 10/10 | 1388 days | 16% |
| Betty Dunn | 10/10 | 1416 days | 15% |
| Ruth | 10/10 | 1996 days | 5% |
| Gary Koh | 10/10 | 2209 days | 4% |
| Jan | 10/10 | 2239 days | 4% |
| Alison B. | 10/10 | 2239 days | 4% |
| John Olsen | 10/10 | 2270 days | 4% |
| Peter | 10/10 | 2362 days | 4% |
| Ben | 10/10 | 2392 days | 4% |
| Ian | 10/10 | 2453 days | 4% |
| Gary Walker | 10/10 | 2453 days | 4% |
| Rowella Bacwaden | 10/10 | 2484 days | 4% |
| Eileen H | 10/10 | 2543 days | 4% |
| Brad | 10/10 | 2604 days | 3% |
| Jared London | 10/10 | 2635 days | 3% |
| Helen Turner | 10/10 | 2665 days | 3% |
| James | 10/10 | 2696 days | 3% |
| Isabelle_Qc | 10/10 | 2727 days | 3% |
| Laura | 10/10 | 2757 days | 3% |
| ACE Richardson | 10/10 | 2788 days | 3% |
| Thea :-) | 10/10 | 2849 days | 3% |
| William Webb | 10/10 | 2876 days | 3% |
| Katelyn Mills | 10/10 | 2877 days | 3% |
| Mrs Smith | 10/10 | 2877 days | 3% |
| Mel | 10/10 | 2877 days | 3% |
| Wayne Smith | 10/10 | 2877 days | 3% |
| Kim | 10/10 | 2907 days | 3% |
| Songyang Liu | 10/10 | 2907 days | 3% |
| Mark Haydon | 10/10 | 3241 days | 2% |
| Kathryn Sherlock | 10/10 | 3456 days | 2% |
| Cherie Kemp | 10/10 | 3456 days | 2% |
| Renee Kemp | 10/10 | 3456 days | 2% |
| Patrick McIvor | 10/10 | 3578 days | 2% |
| Lengxi | 10/10 | 3605 days | 1% |
| Uschi Pongratz | 10/10 | 3613 days | 1% |
| Jessica Ruhland | 10/10 | 3613 days | 1% |
| Paul | 7/10 | 3618 days | 1% |
| Philip Piel | 8/10 | 3618 days | 1% |
| Chiara | 8/10 | 3618 days | 1% |
| Jess | 10/10 | 3655 days | 1% |
| TashJ | 10/10 | 3669 days | 1% |
| Funny Schutt | 10/10 | 3669 days | 1% |
| Craig McCarthy | 10/10 | 3700 days | 1% |
| Tim K | 10/10 | 3700 days | 1% |
| Jack Shearer | 10/10 | 3822 days | 1% |
| Monika M | 10/10 | 3853 days | 1% |
| Ian Wilmot | 10/10 | 3913 days | 1% |
| Rodger Lamb | 10/10 | 3944 days | 1% |
| Leah Kyllo | 10/10 | 4003 days | 1% |
| Juliet Battersby | 10/10 | 4003 days | 1% |
| Chris C | 10/10 | 4064 days | 1% |
| Jessica | 10/10 | 4156 days | 0% |
| Mike Hollows | 10/10 | 4248 days | 0% |
| Monique Hollows | 10/10 | 4309 days | 0% |
| Thomas Subritzky | 10/10 | 4310 days | 0% |
| hmsteele | 10/10 | 4338 days | 0% |
| andy godfrey | 9/10 | 4369 days | 0% |
| Chris Nisbet | 8/10 | 4369 days | 0% |
| Michelle Sanders | 9/10 | 4400 days | 1% |
| phil costello | 8/10 | 4430 days | 1% |
| Robyn Orchard | 10/10 | 4461 days | 1% |
| Gisele Phillips | 9/10 | 4461 days | 1% |
| E Wall | 10/10 | 4461 days | 1% |
| Julie | 10/10 | 4491 days | 1% |
| Little | 10/10 | 4491 days | 1% |
| Grahame Keast | 10/10 | 4522 days | 1% |
| Linda Bates | 10/10 | 4522 days | 1% |
| Morgan Buckingham | 10/10 | 4522 days | 1% |
| Bertiethebus | 10/10 | 4644 days | 1% |
| Julian Roots | 10/10 | 4675 days | 1% |
| Lynette Nicolson | 10/10 | 4734 days | 1% |
| RENs Rens | 10/10 | 4734 days | 1% |
| CKDNH | 10/10 | 4795 days | 1% |
| mattus | 9/10 | 4795 days | 1% |
| Ken | 10/10 | 4795 days | 1% |
| Kathy27 | 10/10 | 4795 days | 1% |
| ladywithplants | 9/10 | 4856 days | 1% |
| princessliz | 10/10 | 4856 days | 1% |
| lariley | 9/10 | 4856 days | 1% |
| richardp | 10/10 | 4887 days | 1% |
| prasanth03 | 10/10 | 4918 days | 1% |
| EllieW | 10/10 | 4948 days | 1% |
| Terry | 10/10 | 5009 days | 1% |
| Borderland | 10/10 | 5040 days | 1% |
| jimbob | 10/10 | 5040 days | 1% |
| mopheim | 10/10 | 5040 days | 1% |
| Mats Harstedt | 9/10 | 5049 days | 1% |
| KateS | 10/10 | 5069 days | 1% |
| RubberDuck | 10/10 | 5100 days | 1% |
| Red_Hurring | 10/10 | 5100 days | 1% |
| travelpam | 10/10 | 5100 days | 1% |
| barjjake | 9/10 | 5100 days | 1% |
| cindyd | 10/10 | 5131 days | 1% |
| webstersuk | 10/10 | 5131 days | 1% |
| pezalone | 10/10 | 5131 days | 1% |
| WiseOwl | 10/10 | 5131 days | 1% |
| mausandhari | 10/10 | 5131 days | 1% |
| Pauline | 10/10 | 5161 days | 1% |
| JadesWorld | 9/10 | 5161 days | 1% |
| utstarfish | 10/10 | 5161 days | 1% |
| johnco78 | 10/10 | 5161 days | 1% |
| jrwholey | 10/10 | 5192 days | 1% |
| ShawnM | 10/10 | 5192 days | 1% |
| Tarsh | 10/10 | 5192 days | 1% |
| lindahealey | 10/10 | 5192 days | 1% |
| campbell_steven | 10/10 | 5222 days | 1% |
| markrussell | 10/10 | 5222 days | 1% |
| Bayneer | 10/10 | 5222 days | 1% |
| jaspreetsohal86 | 10/10 | 5222 days | 1% |
| kiwiholly | 10/10 | 5222 days | 1% |
| garethd1980 | 10/10 | 5222 days | 1% |
| Mulliano | 10/10 | 5222 days | 1% |
| CathyK | 10/10 | 5253 days | 1% |
| silver | 10/10 | 5253 days | 1% |
| Meyerclan | 10/10 | 5284 days | 1% |
| poetania | 10/10 | 5314 days | 1% |
| southernboy611 | 10/10 | 5314 days | 1% |
| EvilChris | 10/10 | 5345 days | 1% |
| nia427 | 10/10 | 5375 days | 1% |
| Mags620 | 10/10 | 5375 days | 1% |
| deanblackburn | 10/10 | 5375 days | 1% |
| Heatherorchard | 10/10 | 5406 days | 1% |
| BeetleBom | 10/10 | 5406 days | 1% |
| AnnaBain | 10/10 | 5434 days | 1% |
| geezer | 10/10 | 5434 days | 1% |
| Jen | 10/10 | 5434 days | 1% |
| busheybrew | 10/10 | 5434 days | 1% |
| painter47 | 10/10 | 5465 days | 1% |
| ganbji | 9/10 | 5465 days | 1% |
| charles | 10/10 | 5496 days | 1% |
| alanos | 9/10 | 5496 days | 1% |
| teeneelz | 10/10 | 5496 days | 1% |
| Douggie | 7/10 | 5587 days | 1% |
| celticcolleen | 10/10 | 5710 days | 1% |
| MarcyMark | 10/10 | 5740 days | 1% |
| Susiekj | 10/10 | 5771 days | 1% |
| Kirsten | 10/10 | 5799 days | 1% |
| Ravi Chand | 10/10 | 5830 days | 1% |
| Sika | 10/10 | 5830 days | 1% |
| anthony mcclaren | 9/10 | 5830 days | 1% |
| menzel | 10/10 | 5844 days | 1% |
| joannaw | 10/10 | 5846 days | 1% |
| meisterbaumann | 10/10 | 5861 days | 1% |
| Stefanie Micheler | 10/10 | 5872 days | 1% |
| Aussies | 10/10 | 5891 days | 1% |
| Jake Volle | 10/10 | 5891 days | 1% |
| Jess Woods | 10/10 | 5952 days | 1% |
| emmah | 9/10 | 5988 days | 1% |
| Dave Roebuck | 10/10 | 6014 days | 1% |
| steph_m | 9/10 | 6114 days | 1% |
| JasonL | 8/10 | 6117 days | 1% |
| Tanja Kirschmann | 10/10 | 6119 days | 1% |
| MicheyJ | 10/10 | 6120 days | 1% |
| caz | 10/10 | 6141 days | 1% |
| Cilla | 10/10 | 6146 days | 1% |
| Hannah | 10/10 | 6149 days | 1% |
| karlijn schaap | 10/10 | 6225 days | 1% |
| Murray | 10/10 | 6256 days | 1% |
| Jan Burch | 9/10 | 6368 days | 1% |
| zane mirfin | 10/10 | 6424 days | 1% |
| becky | 10/10 | 6452 days | 1% |
| dave | 9/10 | 6480 days | 1% |
| shinylight | 9/10 | 6512 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
-0.04% 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 2 days. Adjustments are according to the following table.
| Days | Adjustment |
|---|---|
| … | … |
| 0 | -0.00% |
| 1 | -0.02% |
| 2 | -0.04% |
| 3 | -0.06% |
| 4 | -0.08% |
| 5 | -0.10% |
| … | … |
Balancing Adjustment
-0.16% 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
97%
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.