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 | 42 days | 100% |
| Lynda B | 10/10 | 104 days | 99% |
| V Buys | 10/10 | 348 days | 93% |
| Cody | 10/10 | 379 days | 92% |
| Madonna Thomson | 10/10 | 469 days | 88% |
| Amanda Thomson | 10/10 | 744 days | 68% |
| Peter Little | 10/10 | 773 days | 66% |
| Michaela Liff | 10/10 | 1018 days | 42% |
| Kusum | 10/10 | 1475 days | 12% |
| Betty Dunn | 10/10 | 1503 days | 11% |
| Ruth | 10/10 | 2083 days | 4% |
| Gary Koh | 10/10 | 2296 days | 4% |
| Jan | 10/10 | 2326 days | 4% |
| Alison B. | 10/10 | 2326 days | 4% |
| John Olsen | 10/10 | 2357 days | 4% |
| Peter | 10/10 | 2449 days | 4% |
| Ben | 10/10 | 2479 days | 4% |
| Ian | 10/10 | 2540 days | 4% |
| Gary Walker | 10/10 | 2540 days | 4% |
| Rowella Bacwaden | 10/10 | 2571 days | 3% |
| Eileen H | 10/10 | 2630 days | 3% |
| Brad | 10/10 | 2691 days | 3% |
| Jared London | 10/10 | 2722 days | 3% |
| Helen Turner | 10/10 | 2752 days | 3% |
| James | 10/10 | 2783 days | 3% |
| Isabelle_Qc | 10/10 | 2814 days | 3% |
| Laura | 10/10 | 2844 days | 3% |
| ACE Richardson | 10/10 | 2875 days | 3% |
| Thea :-) | 10/10 | 2936 days | 3% |
| William Webb | 10/10 | 2963 days | 3% |
| Katelyn Mills | 10/10 | 2964 days | 3% |
| Mrs Smith | 10/10 | 2964 days | 3% |
| Mel | 10/10 | 2964 days | 3% |
| Wayne Smith | 10/10 | 2964 days | 3% |
| Kim | 10/10 | 2994 days | 3% |
| Songyang Liu | 10/10 | 2994 days | 3% |
| Mark Haydon | 10/10 | 3328 days | 2% |
| Kathryn Sherlock | 10/10 | 3543 days | 2% |
| Cherie Kemp | 10/10 | 3543 days | 2% |
| Renee Kemp | 10/10 | 3543 days | 2% |
| Patrick McIvor | 10/10 | 3665 days | 1% |
| Lengxi | 10/10 | 3692 days | 1% |
| Uschi Pongratz | 10/10 | 3700 days | 1% |
| Jessica Ruhland | 10/10 | 3700 days | 1% |
| Paul | 7/10 | 3705 days | 1% |
| Philip Piel | 8/10 | 3705 days | 1% |
| Chiara | 8/10 | 3705 days | 1% |
| Jess | 10/10 | 3742 days | 1% |
| TashJ | 10/10 | 3756 days | 1% |
| Funny Schutt | 10/10 | 3756 days | 1% |
| Craig McCarthy | 10/10 | 3787 days | 1% |
| Tim K | 10/10 | 3787 days | 1% |
| Jack Shearer | 10/10 | 3909 days | 1% |
| Monika M | 10/10 | 3940 days | 1% |
| Ian Wilmot | 10/10 | 4000 days | 1% |
| Rodger Lamb | 10/10 | 4031 days | 1% |
| Leah Kyllo | 10/10 | 4090 days | 0% |
| Juliet Battersby | 10/10 | 4090 days | 0% |
| Chris C | 10/10 | 4151 days | 0% |
| Jessica | 10/10 | 4243 days | 0% |
| Mike Hollows | 10/10 | 4335 days | 0% |
| Monique Hollows | 10/10 | 4396 days | 1% |
| Thomas Subritzky | 10/10 | 4397 days | 1% |
| hmsteele | 10/10 | 4425 days | 1% |
| andy godfrey | 9/10 | 4456 days | 1% |
| Chris Nisbet | 8/10 | 4456 days | 1% |
| Michelle Sanders | 9/10 | 4487 days | 1% |
| phil costello | 8/10 | 4517 days | 1% |
| Robyn Orchard | 10/10 | 4548 days | 1% |
| Gisele Phillips | 9/10 | 4548 days | 1% |
| E Wall | 10/10 | 4548 days | 1% |
| Julie | 10/10 | 4578 days | 1% |
| Little | 10/10 | 4578 days | 1% |
| Grahame Keast | 10/10 | 4609 days | 1% |
| Linda Bates | 10/10 | 4609 days | 1% |
| Morgan Buckingham | 10/10 | 4609 days | 1% |
| Bertiethebus | 10/10 | 4731 days | 1% |
| Julian Roots | 10/10 | 4762 days | 1% |
| Lynette Nicolson | 10/10 | 4821 days | 1% |
| RENs Rens | 10/10 | 4821 days | 1% |
| CKDNH | 10/10 | 4882 days | 1% |
| mattus | 9/10 | 4882 days | 1% |
| Ken | 10/10 | 4882 days | 1% |
| Kathy27 | 10/10 | 4882 days | 1% |
| ladywithplants | 9/10 | 4943 days | 1% |
| princessliz | 10/10 | 4943 days | 1% |
| lariley | 9/10 | 4943 days | 1% |
| richardp | 10/10 | 4974 days | 1% |
| prasanth03 | 10/10 | 5005 days | 1% |
| EllieW | 10/10 | 5035 days | 1% |
| Terry | 10/10 | 5096 days | 1% |
| Borderland | 10/10 | 5127 days | 1% |
| jimbob | 10/10 | 5127 days | 1% |
| mopheim | 10/10 | 5127 days | 1% |
| Mats Harstedt | 9/10 | 5136 days | 1% |
| KateS | 10/10 | 5156 days | 1% |
| RubberDuck | 10/10 | 5187 days | 1% |
| Red_Hurring | 10/10 | 5187 days | 1% |
| travelpam | 10/10 | 5187 days | 1% |
| barjjake | 9/10 | 5187 days | 1% |
| cindyd | 10/10 | 5218 days | 1% |
| webstersuk | 10/10 | 5218 days | 1% |
| pezalone | 10/10 | 5218 days | 1% |
| WiseOwl | 10/10 | 5218 days | 1% |
| mausandhari | 10/10 | 5218 days | 1% |
| Pauline | 10/10 | 5248 days | 1% |
| JadesWorld | 9/10 | 5248 days | 1% |
| utstarfish | 10/10 | 5248 days | 1% |
| johnco78 | 10/10 | 5248 days | 1% |
| jrwholey | 10/10 | 5279 days | 1% |
| ShawnM | 10/10 | 5279 days | 1% |
| Tarsh | 10/10 | 5279 days | 1% |
| lindahealey | 10/10 | 5279 days | 1% |
| campbell_steven | 10/10 | 5309 days | 1% |
| markrussell | 10/10 | 5309 days | 1% |
| Bayneer | 10/10 | 5309 days | 1% |
| jaspreetsohal86 | 10/10 | 5309 days | 1% |
| kiwiholly | 10/10 | 5309 days | 1% |
| garethd1980 | 10/10 | 5309 days | 1% |
| Mulliano | 10/10 | 5309 days | 1% |
| CathyK | 10/10 | 5340 days | 1% |
| silver | 10/10 | 5340 days | 1% |
| Meyerclan | 10/10 | 5371 days | 1% |
| poetania | 10/10 | 5401 days | 1% |
| southernboy611 | 10/10 | 5401 days | 1% |
| EvilChris | 10/10 | 5432 days | 1% |
| nia427 | 10/10 | 5462 days | 1% |
| Mags620 | 10/10 | 5462 days | 1% |
| deanblackburn | 10/10 | 5462 days | 1% |
| Heatherorchard | 10/10 | 5493 days | 1% |
| BeetleBom | 10/10 | 5493 days | 1% |
| AnnaBain | 10/10 | 5521 days | 1% |
| geezer | 10/10 | 5521 days | 1% |
| Jen | 10/10 | 5521 days | 1% |
| busheybrew | 10/10 | 5521 days | 1% |
| painter47 | 10/10 | 5552 days | 1% |
| ganbji | 9/10 | 5552 days | 1% |
| charles | 10/10 | 5583 days | 1% |
| alanos | 9/10 | 5583 days | 1% |
| teeneelz | 10/10 | 5583 days | 1% |
| Douggie | 7/10 | 5674 days | 1% |
| celticcolleen | 10/10 | 5797 days | 1% |
| MarcyMark | 10/10 | 5827 days | 1% |
| Susiekj | 10/10 | 5858 days | 1% |
| Kirsten | 10/10 | 5886 days | 1% |
| Ravi Chand | 10/10 | 5917 days | 1% |
| Sika | 10/10 | 5917 days | 1% |
| anthony mcclaren | 9/10 | 5917 days | 1% |
| menzel | 10/10 | 5931 days | 1% |
| joannaw | 10/10 | 5933 days | 1% |
| meisterbaumann | 10/10 | 5948 days | 1% |
| Stefanie Micheler | 10/10 | 5959 days | 1% |
| Aussies | 10/10 | 5978 days | 1% |
| Jake Volle | 10/10 | 5978 days | 1% |
| Jess Woods | 10/10 | 6039 days | 1% |
| emmah | 9/10 | 6075 days | 1% |
| Dave Roebuck | 10/10 | 6101 days | 1% |
| steph_m | 9/10 | 6201 days | 1% |
| JasonL | 8/10 | 6204 days | 0% |
| Tanja Kirschmann | 10/10 | 6206 days | 1% |
| MicheyJ | 10/10 | 6207 days | 1% |
| caz | 10/10 | 6228 days | 1% |
| Cilla | 10/10 | 6233 days | 1% |
| Hannah | 10/10 | 6236 days | 1% |
| karlijn schaap | 10/10 | 6312 days | 1% |
| Murray | 10/10 | 6343 days | 1% |
| Jan Burch | 9/10 | 6455 days | 1% |
| zane mirfin | 10/10 | 6511 days | 1% |
| becky | 10/10 | 6539 days | 1% |
| dave | 9/10 | 6567 days | 1% |
| shinylight | 9/10 | 6599 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
-0.38% Adjustment
There may be an adjustment if this experience hasn't received any reviews within the last 57 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 19 days. Adjustments are according to the following table.
| Days | Adjustment |
|---|---|
| … | … |
| 16 | -0.32% |
| 17 | -0.34% |
| 18 | -0.36% |
| 19 | -0.38% |
| 20 | -0.40% |
| 21 | -0.42% |
| 22 | -0.44% |
| … | … |
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.