Hey, 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
166 Valid Reviews
The Tongariro River Rafting experience has a total of 167 reviews. There are 166 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 166 valid reviews:
| Rating | Count | Percentage | |
|---|---|---|---|
| 10/10 | 142 |
|
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% |
98.01% Average
The raw data average (mean) for all the Tongariro River Rafting valid reviews is 98.01% and is based on 166 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 166 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
99.51%
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 |
|---|---|---|---|
| Amanda Thomson | 10/10 | 200 days | 100% |
| Peter Little | 10/10 | 229 days | 99% |
| Michaela Liff | 10/10 | 474 days | 89% |
| Kusum | 10/10 | 931 days | 52% |
| Betty Dunn | 10/10 | 959 days | 49% |
| Ruth | 10/10 | 1539 days | 10% |
| Gary Koh | 10/10 | 1752 days | 5% |
| Jan | 10/10 | 1782 days | 5% |
| Alison B. | 10/10 | 1782 days | 5% |
| John Olsen | 10/10 | 1813 days | 5% |
| Peter | 10/10 | 1905 days | 5% |
| Ben | 10/10 | 1935 days | 5% |
| Ian | 10/10 | 1996 days | 5% |
| Gary Walker | 10/10 | 1996 days | 5% |
| Rowella Bacwaden | 10/10 | 2027 days | 5% |
| Eileen H | 10/10 | 2086 days | 5% |
| Brad | 10/10 | 2147 days | 4% |
| Jared London | 10/10 | 2178 days | 4% |
| Helen Turner | 10/10 | 2208 days | 4% |
| James | 10/10 | 2239 days | 4% |
| Isabelle_Qc | 10/10 | 2270 days | 4% |
| Laura | 10/10 | 2300 days | 4% |
| ACE Richardson | 10/10 | 2331 days | 4% |
| Thea :-) | 10/10 | 2392 days | 4% |
| William Webb | 10/10 | 2419 days | 4% |
| Katelyn Mills | 10/10 | 2420 days | 4% |
| Mrs Smith | 10/10 | 2420 days | 4% |
| Mel | 10/10 | 2420 days | 4% |
| Wayne Smith | 10/10 | 2420 days | 4% |
| Kim | 10/10 | 2450 days | 4% |
| Songyang Liu | 10/10 | 2450 days | 4% |
| Mark Haydon | 10/10 | 2784 days | 3% |
| Kathryn Sherlock | 10/10 | 2999 days | 3% |
| Cherie Kemp | 10/10 | 2999 days | 3% |
| Renee Kemp | 10/10 | 2999 days | 3% |
| Patrick McIvor | 10/10 | 3121 days | 2% |
| Lengxi | 10/10 | 3148 days | 1% |
| Uschi Pongratz | 10/10 | 3156 days | 1% |
| Jessica Ruhland | 10/10 | 3156 days | 1% |
| Paul | 7/10 | 3161 days | 1% |
| Philip Piel | 8/10 | 3161 days | 1% |
| Chiara | 8/10 | 3161 days | 1% |
| Jess | 10/10 | 3198 days | 1% |
| TashJ | 10/10 | 3212 days | 2% |
| Funny Schutt | 10/10 | 3212 days | 2% |
| Craig McCarthy | 10/10 | 3243 days | 2% |
| Tim K | 10/10 | 3243 days | 2% |
| Jack Shearer | 10/10 | 3365 days | 2% |
| Monika M | 10/10 | 3396 days | 2% |
| Ian Wilmot | 10/10 | 3456 days | 2% |
| Rodger Lamb | 10/10 | 3487 days | 2% |
| Leah Kyllo | 10/10 | 3546 days | 2% |
| Juliet Battersby | 10/10 | 3546 days | 2% |
| Chris C | 10/10 | 3607 days | 1% |
| Jessica | 10/10 | 3699 days | 1% |
| Mike Hollows | 10/10 | 3791 days | 1% |
| Monique Hollows | 10/10 | 3852 days | 1% |
| Thomas Subritzky | 10/10 | 3853 days | 1% |
| hmsteele | 10/10 | 3881 days | 1% |
| andy godfrey | 9/10 | 3912 days | 1% |
| Chris Nisbet | 8/10 | 3912 days | 1% |
| Michelle Sanders | 9/10 | 3943 days | 1% |
| phil costello | 8/10 | 3973 days | 1% |
| Robyn Orchard | 10/10 | 4004 days | 1% |
| Gisele Phillips | 9/10 | 4004 days | 1% |
| E Wall | 10/10 | 4004 days | 1% |
| Julie | 10/10 | 4034 days | 1% |
| Little | 10/10 | 4034 days | 1% |
| Grahame Keast | 10/10 | 4065 days | 1% |
| Linda Bates | 10/10 | 4065 days | 1% |
| Morgan Buckingham | 10/10 | 4065 days | 1% |
| Bertiethebus | 10/10 | 4187 days | 0% |
| Julian Roots | 10/10 | 4218 days | 0% |
| Lynette Nicolson | 10/10 | 4277 days | 0% |
| RENs Rens | 10/10 | 4277 days | 0% |
| CKDNH | 10/10 | 4338 days | 0% |
| mattus | 9/10 | 4338 days | 0% |
| Ken | 10/10 | 4338 days | 0% |
| Kathy27 | 10/10 | 4338 days | 0% |
| ladywithplants | 9/10 | 4399 days | 1% |
| princessliz | 10/10 | 4399 days | 1% |
| lariley | 9/10 | 4399 days | 1% |
| richardp | 10/10 | 4430 days | 1% |
| prasanth03 | 10/10 | 4461 days | 1% |
| EllieW | 10/10 | 4491 days | 1% |
| Terry | 10/10 | 4552 days | 1% |
| Borderland | 10/10 | 4583 days | 1% |
| jimbob | 10/10 | 4583 days | 1% |
| mopheim | 10/10 | 4583 days | 1% |
| Mats Harstedt | 9/10 | 4592 days | 1% |
| KateS | 10/10 | 4612 days | 1% |
| RubberDuck | 10/10 | 4643 days | 1% |
| Red_Hurring | 10/10 | 4643 days | 1% |
| travelpam | 10/10 | 4643 days | 1% |
| barjjake | 9/10 | 4643 days | 1% |
| cindyd | 10/10 | 4674 days | 1% |
| webstersuk | 10/10 | 4674 days | 1% |
| pezalone | 10/10 | 4674 days | 1% |
| WiseOwl | 10/10 | 4674 days | 1% |
| mausandhari | 10/10 | 4674 days | 1% |
| Pauline | 10/10 | 4704 days | 1% |
| JadesWorld | 9/10 | 4704 days | 1% |
| utstarfish | 10/10 | 4704 days | 1% |
| johnco78 | 10/10 | 4704 days | 1% |
| jrwholey | 10/10 | 4735 days | 1% |
| ShawnM | 10/10 | 4735 days | 1% |
| Tarsh | 10/10 | 4735 days | 1% |
| lindahealey | 10/10 | 4735 days | 1% |
| campbell_steven | 10/10 | 4765 days | 1% |
| markrussell | 10/10 | 4765 days | 1% |
| Bayneer | 10/10 | 4765 days | 1% |
| jaspreetsohal86 | 10/10 | 4765 days | 1% |
| kiwiholly | 10/10 | 4765 days | 1% |
| garethd1980 | 10/10 | 4765 days | 1% |
| Mulliano | 10/10 | 4765 days | 1% |
| CathyK | 10/10 | 4796 days | 1% |
| silver | 10/10 | 4796 days | 1% |
| Meyerclan | 10/10 | 4827 days | 1% |
| poetania | 10/10 | 4857 days | 1% |
| southernboy611 | 10/10 | 4857 days | 1% |
| EvilChris | 10/10 | 4888 days | 1% |
| nia427 | 10/10 | 4918 days | 1% |
| Mags620 | 10/10 | 4918 days | 1% |
| deanblackburn | 10/10 | 4918 days | 1% |
| Heatherorchard | 10/10 | 4949 days | 1% |
| BeetleBom | 10/10 | 4949 days | 1% |
| AnnaBain | 10/10 | 4977 days | 1% |
| geezer | 10/10 | 4977 days | 1% |
| Jen | 10/10 | 4977 days | 1% |
| busheybrew | 10/10 | 4977 days | 1% |
| painter47 | 10/10 | 5008 days | 1% |
| ganbji | 9/10 | 5008 days | 1% |
| charles | 10/10 | 5039 days | 1% |
| alanos | 9/10 | 5039 days | 1% |
| teeneelz | 10/10 | 5039 days | 1% |
| Douggie | 7/10 | 5130 days | 1% |
| celticcolleen | 10/10 | 5253 days | 1% |
| MarcyMark | 10/10 | 5283 days | 1% |
| Susiekj | 10/10 | 5314 days | 1% |
| Kirsten | 10/10 | 5342 days | 1% |
| Ravi Chand | 10/10 | 5373 days | 1% |
| Sika | 10/10 | 5373 days | 1% |
| anthony mcclaren | 9/10 | 5373 days | 1% |
| menzel | 10/10 | 5387 days | 1% |
| joannaw | 10/10 | 5389 days | 1% |
| meisterbaumann | 10/10 | 5404 days | 1% |
| Stefanie Micheler | 10/10 | 5415 days | 1% |
| Aussies | 10/10 | 5434 days | 1% |
| Jake Volle | 10/10 | 5434 days | 1% |
| Jess Woods | 10/10 | 5495 days | 1% |
| emmah | 9/10 | 5531 days | 1% |
| Dave Roebuck | 10/10 | 5557 days | 1% |
| steph_m | 9/10 | 5657 days | 1% |
| JasonL | 8/10 | 5660 days | 1% |
| Tanja Kirschmann | 10/10 | 5661 days | 1% |
| MicheyJ | 10/10 | 5663 days | 1% |
| caz | 10/10 | 5684 days | 1% |
| Cilla | 10/10 | 5689 days | 1% |
| Hannah | 10/10 | 5691 days | 1% |
| karlijn schaap | 10/10 | 5768 days | 1% |
| Murray | 10/10 | 5798 days | 1% |
| Jan Burch | 9/10 | 5911 days | 1% |
| zane mirfin | 10/10 | 5967 days | 1% |
| becky | 10/10 | 5995 days | 1% |
| dave | 9/10 | 6023 days | 1% |
| shinylight | 9/10 | 6055 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
-2.73% Adjustment
There may be an adjustment if this experience hasn't received any reviews within the last 76 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 183 days. Adjustments are according to the following table.
| Days | Adjustment |
|---|---|
| … | … |
| 180 | -2.69% |
| 181 | -2.70% |
| 182 | -2.72% |
| 183 | -2.73% |
| 184 | -2.74% |
| 185 | -2.76% |
| 186 | -2.77% |
| … | … |
Balancing Adjustment
0.27% 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.