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
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 | 19 days | 100% |
| V Buys | 10/10 | 263 days | 96% |
| Cody | 10/10 | 294 days | 95% |
| Madonna Thomson | 10/10 | 384 days | 92% |
| Amanda Thomson | 10/10 | 659 days | 75% |
| Peter Little | 10/10 | 688 days | 73% |
| Michaela Liff | 10/10 | 933 days | 50% |
| Kusum | 10/10 | 1390 days | 16% |
| Betty Dunn | 10/10 | 1418 days | 14% |
| Ruth | 10/10 | 1998 days | 5% |
| Gary Koh | 10/10 | 2211 days | 4% |
| Jan | 10/10 | 2241 days | 4% |
| Alison B. | 10/10 | 2241 days | 4% |
| John Olsen | 10/10 | 2272 days | 4% |
| Peter | 10/10 | 2364 days | 4% |
| Ben | 10/10 | 2394 days | 4% |
| Ian | 10/10 | 2455 days | 4% |
| Gary Walker | 10/10 | 2455 days | 4% |
| Rowella Bacwaden | 10/10 | 2486 days | 4% |
| Eileen H | 10/10 | 2545 days | 4% |
| Brad | 10/10 | 2606 days | 3% |
| Jared London | 10/10 | 2637 days | 3% |
| Helen Turner | 10/10 | 2667 days | 3% |
| James | 10/10 | 2698 days | 3% |
| Isabelle_Qc | 10/10 | 2729 days | 3% |
| Laura | 10/10 | 2759 days | 3% |
| ACE Richardson | 10/10 | 2790 days | 3% |
| Thea :-) | 10/10 | 2851 days | 3% |
| William Webb | 10/10 | 2878 days | 3% |
| Katelyn Mills | 10/10 | 2879 days | 3% |
| Mrs Smith | 10/10 | 2879 days | 3% |
| Mel | 10/10 | 2879 days | 3% |
| Wayne Smith | 10/10 | 2879 days | 3% |
| Kim | 10/10 | 2909 days | 3% |
| Songyang Liu | 10/10 | 2909 days | 3% |
| Mark Haydon | 10/10 | 3243 days | 2% |
| Kathryn Sherlock | 10/10 | 3458 days | 2% |
| Cherie Kemp | 10/10 | 3458 days | 2% |
| Renee Kemp | 10/10 | 3458 days | 2% |
| Patrick McIvor | 10/10 | 3580 days | 2% |
| Lengxi | 10/10 | 3607 days | 1% |
| Uschi Pongratz | 10/10 | 3615 days | 1% |
| Jessica Ruhland | 10/10 | 3615 days | 1% |
| Paul | 7/10 | 3620 days | 1% |
| Philip Piel | 8/10 | 3620 days | 1% |
| Chiara | 8/10 | 3620 days | 1% |
| Jess | 10/10 | 3657 days | 1% |
| TashJ | 10/10 | 3671 days | 1% |
| Funny Schutt | 10/10 | 3671 days | 1% |
| Craig McCarthy | 10/10 | 3702 days | 1% |
| Tim K | 10/10 | 3702 days | 1% |
| Jack Shearer | 10/10 | 3824 days | 1% |
| Monika M | 10/10 | 3855 days | 1% |
| Ian Wilmot | 10/10 | 3915 days | 1% |
| Rodger Lamb | 10/10 | 3946 days | 1% |
| Leah Kyllo | 10/10 | 4005 days | 1% |
| Juliet Battersby | 10/10 | 4005 days | 1% |
| Chris C | 10/10 | 4066 days | 1% |
| Jessica | 10/10 | 4158 days | 0% |
| Mike Hollows | 10/10 | 4250 days | 0% |
| Monique Hollows | 10/10 | 4311 days | 0% |
| Thomas Subritzky | 10/10 | 4312 days | 0% |
| hmsteele | 10/10 | 4340 days | 0% |
| andy godfrey | 9/10 | 4371 days | 0% |
| Chris Nisbet | 8/10 | 4371 days | 0% |
| Michelle Sanders | 9/10 | 4402 days | 1% |
| phil costello | 8/10 | 4432 days | 1% |
| Robyn Orchard | 10/10 | 4463 days | 1% |
| Gisele Phillips | 9/10 | 4463 days | 1% |
| E Wall | 10/10 | 4463 days | 1% |
| Julie | 10/10 | 4493 days | 1% |
| Little | 10/10 | 4493 days | 1% |
| Grahame Keast | 10/10 | 4524 days | 1% |
| Linda Bates | 10/10 | 4524 days | 1% |
| Morgan Buckingham | 10/10 | 4524 days | 1% |
| Bertiethebus | 10/10 | 4646 days | 1% |
| Julian Roots | 10/10 | 4677 days | 1% |
| Lynette Nicolson | 10/10 | 4736 days | 1% |
| RENs Rens | 10/10 | 4736 days | 1% |
| CKDNH | 10/10 | 4797 days | 1% |
| mattus | 9/10 | 4797 days | 1% |
| Ken | 10/10 | 4797 days | 1% |
| Kathy27 | 10/10 | 4797 days | 1% |
| ladywithplants | 9/10 | 4858 days | 1% |
| princessliz | 10/10 | 4858 days | 1% |
| lariley | 9/10 | 4858 days | 1% |
| richardp | 10/10 | 4889 days | 1% |
| prasanth03 | 10/10 | 4920 days | 1% |
| EllieW | 10/10 | 4950 days | 1% |
| Terry | 10/10 | 5011 days | 1% |
| Borderland | 10/10 | 5042 days | 1% |
| jimbob | 10/10 | 5042 days | 1% |
| mopheim | 10/10 | 5042 days | 1% |
| Mats Harstedt | 9/10 | 5051 days | 1% |
| KateS | 10/10 | 5071 days | 1% |
| RubberDuck | 10/10 | 5102 days | 1% |
| Red_Hurring | 10/10 | 5102 days | 1% |
| travelpam | 10/10 | 5102 days | 1% |
| barjjake | 9/10 | 5102 days | 1% |
| cindyd | 10/10 | 5133 days | 1% |
| webstersuk | 10/10 | 5133 days | 1% |
| pezalone | 10/10 | 5133 days | 1% |
| WiseOwl | 10/10 | 5133 days | 1% |
| mausandhari | 10/10 | 5133 days | 1% |
| Pauline | 10/10 | 5163 days | 1% |
| JadesWorld | 9/10 | 5163 days | 1% |
| utstarfish | 10/10 | 5163 days | 1% |
| johnco78 | 10/10 | 5163 days | 1% |
| jrwholey | 10/10 | 5194 days | 1% |
| ShawnM | 10/10 | 5194 days | 1% |
| Tarsh | 10/10 | 5194 days | 1% |
| lindahealey | 10/10 | 5194 days | 1% |
| campbell_steven | 10/10 | 5224 days | 1% |
| markrussell | 10/10 | 5224 days | 1% |
| Bayneer | 10/10 | 5224 days | 1% |
| jaspreetsohal86 | 10/10 | 5224 days | 1% |
| kiwiholly | 10/10 | 5224 days | 1% |
| garethd1980 | 10/10 | 5224 days | 1% |
| Mulliano | 10/10 | 5224 days | 1% |
| CathyK | 10/10 | 5255 days | 1% |
| silver | 10/10 | 5255 days | 1% |
| Meyerclan | 10/10 | 5286 days | 1% |
| poetania | 10/10 | 5316 days | 1% |
| southernboy611 | 10/10 | 5316 days | 1% |
| EvilChris | 10/10 | 5347 days | 1% |
| nia427 | 10/10 | 5377 days | 1% |
| Mags620 | 10/10 | 5377 days | 1% |
| deanblackburn | 10/10 | 5377 days | 1% |
| Heatherorchard | 10/10 | 5408 days | 1% |
| BeetleBom | 10/10 | 5408 days | 1% |
| AnnaBain | 10/10 | 5436 days | 1% |
| geezer | 10/10 | 5436 days | 1% |
| Jen | 10/10 | 5436 days | 1% |
| busheybrew | 10/10 | 5436 days | 1% |
| painter47 | 10/10 | 5467 days | 1% |
| ganbji | 9/10 | 5467 days | 1% |
| charles | 10/10 | 5498 days | 1% |
| alanos | 9/10 | 5498 days | 1% |
| teeneelz | 10/10 | 5498 days | 1% |
| Douggie | 7/10 | 5589 days | 1% |
| celticcolleen | 10/10 | 5712 days | 1% |
| MarcyMark | 10/10 | 5742 days | 1% |
| Susiekj | 10/10 | 5773 days | 1% |
| Kirsten | 10/10 | 5801 days | 1% |
| Ravi Chand | 10/10 | 5832 days | 1% |
| Sika | 10/10 | 5832 days | 1% |
| anthony mcclaren | 9/10 | 5832 days | 1% |
| menzel | 10/10 | 5846 days | 1% |
| joannaw | 10/10 | 5848 days | 1% |
| meisterbaumann | 10/10 | 5863 days | 1% |
| Stefanie Micheler | 10/10 | 5874 days | 1% |
| Aussies | 10/10 | 5893 days | 1% |
| Jake Volle | 10/10 | 5893 days | 1% |
| Jess Woods | 10/10 | 5954 days | 1% |
| emmah | 9/10 | 5990 days | 1% |
| Dave Roebuck | 10/10 | 6016 days | 1% |
| steph_m | 9/10 | 6116 days | 1% |
| JasonL | 8/10 | 6119 days | 1% |
| Tanja Kirschmann | 10/10 | 6121 days | 1% |
| MicheyJ | 10/10 | 6122 days | 1% |
| caz | 10/10 | 6143 days | 1% |
| Cilla | 10/10 | 6148 days | 1% |
| Hannah | 10/10 | 6151 days | 1% |
| karlijn schaap | 10/10 | 6227 days | 1% |
| Murray | 10/10 | 6258 days | 1% |
| Jan Burch | 9/10 | 6370 days | 1% |
| zane mirfin | 10/10 | 6426 days | 1% |
| becky | 10/10 | 6454 days | 1% |
| dave | 9/10 | 6482 days | 1% |
| shinylight | 9/10 | 6514 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
-0.06% Adjustment
There may be an adjustment if this experience hasn't received any reviews within the last 41 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 3 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% |
| 6 | -0.12% |
| … | … |
Balancing Adjustment
-0.12% 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
98%
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.