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
169 Valid Reviews
The Tongariro River Rafting experience has a total of 171 reviews. There are 169 valid reviews that are included when calculating the ranking score and 2 invalid reviews 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 169 valid reviews:
| Rating | Count | Percentage | |
|---|---|---|---|
| 10/10 | 145 |
|
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% |
98.05% Average
The raw data average (mean) for all the Tongariro River Rafting valid reviews is 98.05% and is based on 169 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 169 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
99.63%
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 |
|---|---|---|---|
| V Buys | 10/10 | 259 days | 100% |
| Cody | 10/10 | 290 days | 99% |
| Madonna Thomson | 10/10 | 380 days | 95% |
| Amanda Thomson | 10/10 | 655 days | 79% |
| Peter Little | 10/10 | 684 days | 76% |
| Michaela Liff | 10/10 | 929 days | 53% |
| Kusum | 10/10 | 1386 days | 17% |
| Betty Dunn | 10/10 | 1414 days | 15% |
| Ruth | 10/10 | 1994 days | 5% |
| Gary Koh | 10/10 | 2207 days | 4% |
| Jan | 10/10 | 2237 days | 4% |
| Alison B. | 10/10 | 2237 days | 4% |
| John Olsen | 10/10 | 2268 days | 4% |
| Peter | 10/10 | 2360 days | 4% |
| Ben | 10/10 | 2390 days | 4% |
| Ian | 10/10 | 2451 days | 4% |
| Gary Walker | 10/10 | 2451 days | 4% |
| Rowella Bacwaden | 10/10 | 2482 days | 4% |
| Eileen H | 10/10 | 2541 days | 4% |
| Brad | 10/10 | 2602 days | 4% |
| Jared London | 10/10 | 2633 days | 4% |
| Helen Turner | 10/10 | 2663 days | 3% |
| James | 10/10 | 2694 days | 3% |
| Isabelle_Qc | 10/10 | 2725 days | 3% |
| Laura | 10/10 | 2755 days | 3% |
| ACE Richardson | 10/10 | 2786 days | 3% |
| Thea :-) | 10/10 | 2847 days | 3% |
| William Webb | 10/10 | 2874 days | 3% |
| Katelyn Mills | 10/10 | 2875 days | 3% |
| Mrs Smith | 10/10 | 2875 days | 3% |
| Mel | 10/10 | 2875 days | 3% |
| Wayne Smith | 10/10 | 2875 days | 3% |
| Kim | 10/10 | 2905 days | 3% |
| Songyang Liu | 10/10 | 2905 days | 3% |
| Mark Haydon | 10/10 | 3239 days | 2% |
| Kathryn Sherlock | 10/10 | 3454 days | 2% |
| Cherie Kemp | 10/10 | 3454 days | 2% |
| Renee Kemp | 10/10 | 3454 days | 2% |
| Patrick McIvor | 10/10 | 3576 days | 2% |
| Lengxi | 10/10 | 3603 days | 1% |
| Uschi Pongratz | 10/10 | 3611 days | 1% |
| Jessica Ruhland | 10/10 | 3611 days | 1% |
| Paul | 7/10 | 3616 days | 1% |
| Philip Piel | 8/10 | 3616 days | 1% |
| Chiara | 8/10 | 3616 days | 1% |
| Jess | 10/10 | 3653 days | 1% |
| TashJ | 10/10 | 3667 days | 1% |
| Funny Schutt | 10/10 | 3667 days | 1% |
| Craig McCarthy | 10/10 | 3698 days | 1% |
| Tim K | 10/10 | 3698 days | 1% |
| Jack Shearer | 10/10 | 3820 days | 1% |
| Monika M | 10/10 | 3851 days | 1% |
| Ian Wilmot | 10/10 | 3911 days | 1% |
| Rodger Lamb | 10/10 | 3942 days | 1% |
| Leah Kyllo | 10/10 | 4001 days | 1% |
| Juliet Battersby | 10/10 | 4001 days | 1% |
| Chris C | 10/10 | 4062 days | 1% |
| Jessica | 10/10 | 4154 days | 0% |
| Mike Hollows | 10/10 | 4246 days | 0% |
| Monique Hollows | 10/10 | 4307 days | 0% |
| Thomas Subritzky | 10/10 | 4308 days | 0% |
| hmsteele | 10/10 | 4336 days | 0% |
| andy godfrey | 9/10 | 4367 days | 0% |
| Chris Nisbet | 8/10 | 4367 days | 0% |
| Michelle Sanders | 9/10 | 4398 days | 1% |
| phil costello | 8/10 | 4428 days | 1% |
| Robyn Orchard | 10/10 | 4459 days | 1% |
| Gisele Phillips | 9/10 | 4459 days | 1% |
| E Wall | 10/10 | 4459 days | 1% |
| Julie | 10/10 | 4489 days | 1% |
| Little | 10/10 | 4489 days | 1% |
| Grahame Keast | 10/10 | 4520 days | 1% |
| Linda Bates | 10/10 | 4520 days | 1% |
| Morgan Buckingham | 10/10 | 4520 days | 1% |
| Bertiethebus | 10/10 | 4642 days | 1% |
| Julian Roots | 10/10 | 4673 days | 1% |
| Lynette Nicolson | 10/10 | 4732 days | 1% |
| RENs Rens | 10/10 | 4732 days | 1% |
| CKDNH | 10/10 | 4793 days | 1% |
| mattus | 9/10 | 4793 days | 1% |
| Ken | 10/10 | 4793 days | 1% |
| Kathy27 | 10/10 | 4793 days | 1% |
| ladywithplants | 9/10 | 4854 days | 1% |
| princessliz | 10/10 | 4854 days | 1% |
| lariley | 9/10 | 4854 days | 1% |
| richardp | 10/10 | 4885 days | 1% |
| prasanth03 | 10/10 | 4916 days | 1% |
| EllieW | 10/10 | 4946 days | 1% |
| Terry | 10/10 | 5007 days | 1% |
| Borderland | 10/10 | 5038 days | 1% |
| jimbob | 10/10 | 5038 days | 1% |
| mopheim | 10/10 | 5038 days | 1% |
| Mats Harstedt | 9/10 | 5047 days | 1% |
| KateS | 10/10 | 5067 days | 1% |
| RubberDuck | 10/10 | 5098 days | 1% |
| Red_Hurring | 10/10 | 5098 days | 1% |
| travelpam | 10/10 | 5098 days | 1% |
| barjjake | 9/10 | 5098 days | 1% |
| cindyd | 10/10 | 5129 days | 1% |
| webstersuk | 10/10 | 5129 days | 1% |
| pezalone | 10/10 | 5129 days | 1% |
| WiseOwl | 10/10 | 5129 days | 1% |
| mausandhari | 10/10 | 5129 days | 1% |
| Pauline | 10/10 | 5159 days | 1% |
| JadesWorld | 9/10 | 5159 days | 1% |
| utstarfish | 10/10 | 5159 days | 1% |
| johnco78 | 10/10 | 5159 days | 1% |
| jrwholey | 10/10 | 5190 days | 1% |
| ShawnM | 10/10 | 5190 days | 1% |
| Tarsh | 10/10 | 5190 days | 1% |
| lindahealey | 10/10 | 5190 days | 1% |
| campbell_steven | 10/10 | 5220 days | 1% |
| markrussell | 10/10 | 5220 days | 1% |
| Bayneer | 10/10 | 5220 days | 1% |
| jaspreetsohal86 | 10/10 | 5220 days | 1% |
| kiwiholly | 10/10 | 5220 days | 1% |
| garethd1980 | 10/10 | 5220 days | 1% |
| Mulliano | 10/10 | 5220 days | 1% |
| CathyK | 10/10 | 5251 days | 1% |
| silver | 10/10 | 5251 days | 1% |
| Meyerclan | 10/10 | 5282 days | 1% |
| poetania | 10/10 | 5312 days | 1% |
| southernboy611 | 10/10 | 5312 days | 1% |
| EvilChris | 10/10 | 5343 days | 1% |
| nia427 | 10/10 | 5373 days | 1% |
| Mags620 | 10/10 | 5373 days | 1% |
| deanblackburn | 10/10 | 5373 days | 1% |
| Heatherorchard | 10/10 | 5404 days | 1% |
| BeetleBom | 10/10 | 5404 days | 1% |
| AnnaBain | 10/10 | 5432 days | 1% |
| geezer | 10/10 | 5432 days | 1% |
| Jen | 10/10 | 5432 days | 1% |
| busheybrew | 10/10 | 5432 days | 1% |
| painter47 | 10/10 | 5463 days | 1% |
| ganbji | 9/10 | 5463 days | 1% |
| charles | 10/10 | 5494 days | 1% |
| alanos | 9/10 | 5494 days | 1% |
| teeneelz | 10/10 | 5494 days | 1% |
| Douggie | 7/10 | 5585 days | 1% |
| celticcolleen | 10/10 | 5708 days | 1% |
| MarcyMark | 10/10 | 5738 days | 1% |
| Susiekj | 10/10 | 5769 days | 1% |
| Kirsten | 10/10 | 5797 days | 1% |
| Ravi Chand | 10/10 | 5828 days | 1% |
| Sika | 10/10 | 5828 days | 1% |
| anthony mcclaren | 9/10 | 5828 days | 1% |
| menzel | 10/10 | 5842 days | 1% |
| joannaw | 10/10 | 5844 days | 1% |
| meisterbaumann | 10/10 | 5859 days | 1% |
| Stefanie Micheler | 10/10 | 5870 days | 1% |
| Aussies | 10/10 | 5889 days | 1% |
| Jake Volle | 10/10 | 5889 days | 1% |
| Jess Woods | 10/10 | 5950 days | 1% |
| emmah | 9/10 | 5986 days | 1% |
| Dave Roebuck | 10/10 | 6012 days | 1% |
| steph_m | 9/10 | 6112 days | 1% |
| JasonL | 8/10 | 6115 days | 1% |
| Tanja Kirschmann | 10/10 | 6116 days | 1% |
| MicheyJ | 10/10 | 6118 days | 1% |
| caz | 10/10 | 6139 days | 1% |
| Cilla | 10/10 | 6144 days | 1% |
| Hannah | 10/10 | 6146 days | 1% |
| karlijn schaap | 10/10 | 6223 days | 1% |
| Murray | 10/10 | 6253 days | 1% |
| Jan Burch | 9/10 | 6366 days | 1% |
| zane mirfin | 10/10 | 6422 days | 1% |
| becky | 10/10 | 6450 days | 1% |
| dave | 9/10 | 6478 days | 1% |
| shinylight | 9/10 | 6510 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
-4.05% 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 200 days. Adjustments are according to the following table.
| Days | Adjustment |
|---|---|
| … | … |
| 197 | -3.99% |
| 198 | -4.01% |
| 199 | -4.03% |
| 200 | -4.05% |
| 201 | -4.08% |
| 202 | -4.10% |
| 203 | -4.12% |
| … | … |
Balancing Adjustment
0.38% 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
96%
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.