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
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
99.66%
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 | 139 days | 100% |
| Lynda B | 10/10 | 201 days | 99% |
| V Buys | 10/10 | 445 days | 90% |
| Cody | 10/10 | 476 days | 88% |
| Madonna Thomson | 10/10 | 566 days | 83% |
| Amanda Thomson | 10/10 | 841 days | 60% |
| Peter Little | 10/10 | 870 days | 57% |
| Michaela Liff | 10/10 | 1115 days | 34% |
| Kusum | 10/10 | 1572 days | 9% |
| Betty Dunn | 10/10 | 1600 days | 8% |
| Ruth | 10/10 | 2180 days | 4% |
| Gary Koh | 10/10 | 2393 days | 4% |
| Jan | 10/10 | 2423 days | 4% |
| Alison B. | 10/10 | 2423 days | 4% |
| John Olsen | 10/10 | 2454 days | 4% |
| Peter | 10/10 | 2546 days | 4% |
| Ben | 10/10 | 2576 days | 3% |
| Ian | 10/10 | 2637 days | 3% |
| Gary Walker | 10/10 | 2637 days | 3% |
| Rowella Bacwaden | 10/10 | 2668 days | 3% |
| Eileen H | 10/10 | 2727 days | 3% |
| Brad | 10/10 | 2788 days | 3% |
| Jared London | 10/10 | 2819 days | 3% |
| Helen Turner | 10/10 | 2849 days | 3% |
| James | 10/10 | 2880 days | 3% |
| Isabelle_Qc | 10/10 | 2911 days | 3% |
| Laura | 10/10 | 2941 days | 3% |
| ACE Richardson | 10/10 | 2972 days | 3% |
| Thea :-) | 10/10 | 3033 days | 3% |
| William Webb | 10/10 | 3061 days | 3% |
| Katelyn Mills | 10/10 | 3061 days | 3% |
| Mrs Smith | 10/10 | 3061 days | 3% |
| Mel | 10/10 | 3061 days | 3% |
| Wayne Smith | 10/10 | 3061 days | 3% |
| Kim | 10/10 | 3092 days | 2% |
| Songyang Liu | 10/10 | 3092 days | 2% |
| Mark Haydon | 10/10 | 3426 days | 2% |
| Kathryn Sherlock | 10/10 | 3641 days | 1% |
| Cherie Kemp | 10/10 | 3641 days | 1% |
| Renee Kemp | 10/10 | 3641 days | 1% |
| Patrick McIvor | 10/10 | 3763 days | 1% |
| Lengxi | 10/10 | 3789 days | 1% |
| Uschi Pongratz | 10/10 | 3797 days | 1% |
| Jessica Ruhland | 10/10 | 3797 days | 1% |
| Paul | 7/10 | 3802 days | 1% |
| Philip Piel | 8/10 | 3802 days | 1% |
| Chiara | 8/10 | 3802 days | 1% |
| Jess | 10/10 | 3839 days | 1% |
| TashJ | 10/10 | 3854 days | 1% |
| Funny Schutt | 10/10 | 3854 days | 1% |
| Craig McCarthy | 10/10 | 3884 days | 1% |
| Tim K | 10/10 | 3884 days | 1% |
| Jack Shearer | 10/10 | 4007 days | 1% |
| Monika M | 10/10 | 4037 days | 1% |
| Ian Wilmot | 10/10 | 4098 days | 0% |
| Rodger Lamb | 10/10 | 4129 days | 0% |
| Leah Kyllo | 10/10 | 4188 days | 0% |
| Juliet Battersby | 10/10 | 4188 days | 0% |
| Chris C | 10/10 | 4249 days | 0% |
| Jessica | 10/10 | 4341 days | 0% |
| Mike Hollows | 10/10 | 4433 days | 1% |
| Monique Hollows | 10/10 | 4494 days | 1% |
| Thomas Subritzky | 10/10 | 4494 days | 1% |
| hmsteele | 10/10 | 4522 days | 1% |
| andy godfrey | 9/10 | 4553 days | 1% |
| Chris Nisbet | 8/10 | 4553 days | 1% |
| Michelle Sanders | 9/10 | 4584 days | 1% |
| phil costello | 8/10 | 4614 days | 1% |
| Robyn Orchard | 10/10 | 4645 days | 1% |
| Gisele Phillips | 9/10 | 4645 days | 1% |
| E Wall | 10/10 | 4645 days | 1% |
| Julie | 10/10 | 4675 days | 1% |
| Little | 10/10 | 4675 days | 1% |
| Grahame Keast | 10/10 | 4706 days | 1% |
| Linda Bates | 10/10 | 4706 days | 1% |
| Morgan Buckingham | 10/10 | 4706 days | 1% |
| Bertiethebus | 10/10 | 4828 days | 1% |
| Julian Roots | 10/10 | 4859 days | 1% |
| Lynette Nicolson | 10/10 | 4918 days | 1% |
| RENs Rens | 10/10 | 4918 days | 1% |
| CKDNH | 10/10 | 4979 days | 1% |
| mattus | 9/10 | 4979 days | 1% |
| Ken | 10/10 | 4979 days | 1% |
| Kathy27 | 10/10 | 4979 days | 1% |
| ladywithplants | 9/10 | 5040 days | 1% |
| princessliz | 10/10 | 5040 days | 1% |
| lariley | 9/10 | 5040 days | 1% |
| richardp | 10/10 | 5071 days | 1% |
| prasanth03 | 10/10 | 5102 days | 1% |
| EllieW | 10/10 | 5132 days | 1% |
| Terry | 10/10 | 5193 days | 1% |
| Borderland | 10/10 | 5224 days | 1% |
| jimbob | 10/10 | 5224 days | 1% |
| mopheim | 10/10 | 5224 days | 1% |
| Mats Harstedt | 9/10 | 5233 days | 1% |
| KateS | 10/10 | 5253 days | 1% |
| RubberDuck | 10/10 | 5284 days | 1% |
| Red_Hurring | 10/10 | 5284 days | 1% |
| travelpam | 10/10 | 5284 days | 1% |
| barjjake | 9/10 | 5284 days | 1% |
| cindyd | 10/10 | 5315 days | 1% |
| webstersuk | 10/10 | 5315 days | 1% |
| pezalone | 10/10 | 5315 days | 1% |
| WiseOwl | 10/10 | 5315 days | 1% |
| mausandhari | 10/10 | 5315 days | 1% |
| Pauline | 10/10 | 5345 days | 1% |
| JadesWorld | 9/10 | 5345 days | 1% |
| utstarfish | 10/10 | 5345 days | 1% |
| johnco78 | 10/10 | 5345 days | 1% |
| jrwholey | 10/10 | 5376 days | 1% |
| ShawnM | 10/10 | 5376 days | 1% |
| Tarsh | 10/10 | 5376 days | 1% |
| lindahealey | 10/10 | 5376 days | 1% |
| campbell_steven | 10/10 | 5406 days | 1% |
| markrussell | 10/10 | 5406 days | 1% |
| Bayneer | 10/10 | 5406 days | 1% |
| jaspreetsohal86 | 10/10 | 5406 days | 1% |
| kiwiholly | 10/10 | 5406 days | 1% |
| garethd1980 | 10/10 | 5406 days | 1% |
| Mulliano | 10/10 | 5406 days | 1% |
| CathyK | 10/10 | 5437 days | 1% |
| silver | 10/10 | 5437 days | 1% |
| Meyerclan | 10/10 | 5468 days | 1% |
| poetania | 10/10 | 5498 days | 1% |
| southernboy611 | 10/10 | 5498 days | 1% |
| EvilChris | 10/10 | 5529 days | 1% |
| nia427 | 10/10 | 5559 days | 1% |
| Mags620 | 10/10 | 5559 days | 1% |
| deanblackburn | 10/10 | 5559 days | 1% |
| Heatherorchard | 10/10 | 5590 days | 1% |
| BeetleBom | 10/10 | 5590 days | 1% |
| AnnaBain | 10/10 | 5618 days | 1% |
| geezer | 10/10 | 5618 days | 1% |
| Jen | 10/10 | 5618 days | 1% |
| busheybrew | 10/10 | 5618 days | 1% |
| painter47 | 10/10 | 5649 days | 1% |
| ganbji | 9/10 | 5649 days | 1% |
| charles | 10/10 | 5680 days | 1% |
| alanos | 9/10 | 5680 days | 1% |
| teeneelz | 10/10 | 5680 days | 1% |
| Douggie | 7/10 | 5771 days | 1% |
| celticcolleen | 10/10 | 5894 days | 1% |
| MarcyMark | 10/10 | 5924 days | 1% |
| Susiekj | 10/10 | 5955 days | 1% |
| Kirsten | 10/10 | 5983 days | 1% |
| Ravi Chand | 10/10 | 6014 days | 1% |
| Sika | 10/10 | 6014 days | 1% |
| anthony mcclaren | 9/10 | 6014 days | 1% |
| menzel | 10/10 | 6028 days | 1% |
| joannaw | 10/10 | 6030 days | 1% |
| meisterbaumann | 10/10 | 6045 days | 1% |
| Stefanie Micheler | 10/10 | 6056 days | 1% |
| Aussies | 10/10 | 6075 days | 1% |
| Jake Volle | 10/10 | 6075 days | 1% |
| Jess Woods | 10/10 | 6136 days | 1% |
| emmah | 9/10 | 6172 days | 1% |
| Dave Roebuck | 10/10 | 6198 days | 1% |
| steph_m | 9/10 | 6298 days | 1% |
| JasonL | 8/10 | 6301 days | 1% |
| Tanja Kirschmann | 10/10 | 6303 days | 1% |
| MicheyJ | 10/10 | 6304 days | 1% |
| caz | 10/10 | 6325 days | 1% |
| Cilla | 10/10 | 6331 days | 1% |
| Hannah | 10/10 | 6333 days | 1% |
| karlijn schaap | 10/10 | 6410 days | 1% |
| Murray | 10/10 | 6440 days | 1% |
| Jan Burch | 9/10 | 6552 days | 1% |
| zane mirfin | 10/10 | 6608 days | 1% |
| becky | 10/10 | 6636 days | 1% |
| dave | 9/10 | 6664 days | 1% |
| shinylight | 9/10 | 6696 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
-1.25% Adjustment
There may be an adjustment if this experience hasn't received any reviews within the last 118 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 116 days. Adjustments are according to the following table.
| Days | Adjustment |
|---|---|
| … | … |
| 113 | -1.22% |
| 114 | -1.23% |
| 115 | -1.24% |
| 116 | -1.25% |
| 117 | -1.26% |
| 118 | -1.27% |
| 119 | -1.28% |
| … | … |
Balancing Adjustment
0.13% 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.