Ranking Score Explained
Hi there, 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.
Nick Morrison
Rankers owner
Tongariro River Rafting
Valid Reviews
146 Valid Reviews
The Tongariro River Rafting experience has a total of 147 reviews. There are 146 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 146 valid reviews:
| Rating | Count | Percentage | |
|---|---|---|---|
| 10/10 | 122 |
|
84% |
| 9/10 | 17 |
|
12% |
| 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% |
97.74% Average
The raw data average (mean) for all the Tongariro River Rafting valid reviews is 97.74% and is based on 146 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 146 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
99.07%
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 | Face-to-Face | Weight | Relative Weight |
|---|---|---|---|---|---|
| Isabelle_Qc | 10/10 | 45 days | 99.68 | 100% | |
| Laura | 10/10 | 75 days | 99.11 | 99% | |
| ACE Richardson | 10/10 | 106 days | 98.22 | 99% | |
| Thea :-) | 10/10 | 167 days | 95.58 | 96% | |
| William Webb | 10/10 | 195 days | 93.97 | 94% | |
| Katelyn Mills | 10/10 | 195 days | 93.97 | 94% | |
| Mrs Smith | 10/10 | 195 days | 93.97 | 94% | |
| Mel | 10/10 | 195 days | 93.97 | 94% | |
| Wayne Smith | 10/10 | 195 days | 93.97 | 94% | |
| Kim | 10/10 | 226 days | 91.91 | 92% | |
| Songyang Liu | 10/10 | 226 days | 91.91 | 92% | |
| Mark Haydon | 10/10 | 560 days | 50.36 | 50% | |
| Kathryn Sherlock | 10/10 | 775 days | 21.23 | 20% | |
| Cherie Kemp | 10/10 | 775 days | 21.23 | 20% | |
| Renee Kemp | 10/10 | 775 days | 21.23 | 20% | |
| Patrick McIvor | 10/10 | 897 days | 11.21 | 10% | |
| Lengxi | 10/10 | 923 days |  |
11.63 | 11% |
| Uschi Pongratz | 10/10 | 931 days | |
11.11 | 10% |
| Jessica Ruhland | 10/10 | 931 days | |
11.11 | 10% |
| Paul | 7/10 | 936 days | |
10.81 | 10% |
| Philip Piel | 8/10 | 936 days | |
10.81 | 10% |
| Chiara | 8/10 | 936 days | |
10.81 | 10% |
| Jess | 10/10 | 973 days | |
8.83 | 8% |
| TashJ | 10/10 | 988 days | 6.81 | 6% | |
| Funny Schutt | 10/10 | 988 days | 6.81 | 6% | |
| Craig McCarthy | 10/10 | 1018 days | 5.94 | 5% | |
| Tim K | 10/10 | 1018 days | 5.94 | 5% | |
| Jack Shearer | 10/10 | 1141 days | 4.94 | 4% | |
| Monika M | 10/10 | 1171 days | 4.9 | 4% | |
| Ian Wilmot | 10/10 | 1232 days | 4.81 | 4% | |
| Rodger Lamb | 10/10 | 1263 days | 4.77 | 4% | |
| Leah Kyllo | 10/10 | 1322 days | 4.69 | 3% | |
| Juliet Battersby | 10/10 | 1322 days | 4.69 | 3% | |
| Chris C | 10/10 | 1383 days | 4.61 | 3% | |
| Jessica | 10/10 | 1475 days | 4.48 | 3% | |
| Mike Hollows | 10/10 | 1567 days | 4.35 | 3% | |
| Monique Hollows | 10/10 | 1628 days | 4.27 | 3% | |
| Thomas Subritzky | 10/10 | 1628 days | 4.27 | 3% | |
| Helen Steele | 10/10 | 1656 days | 4.23 | 3% | |
| andy godfrey | 9/10 | 1687 days | 4.19 | 3% | |
| Chris Nisbet | 8/10 | 1687 days | 4.19 | 3% | |
| Michelle Sanders | 9/10 | 1718 days | 4.15 | 3% | |
| phil costello | 8/10 | 1748 days | 4.11 | 3% | |
| Robyn Orchard | 10/10 | 1779 days | 4.06 | 3% | |
| Gisele Phillips | 9/10 | 1779 days | 4.06 | 3% | |
| E Wall | 10/10 | 1779 days | 4.06 | 3% | |
| Julie | 10/10 | 1809 days | 4.02 | 3% | |
| Little | 10/10 | 1809 days | 4.02 | 3% | |
| Grahame Keast | 10/10 | 1840 days | 3.98 | 3% | |
| Linda Bates | 10/10 | 1840 days | 3.98 | 3% | |
| Morgan Buckingham | 10/10 | 1840 days | 3.98 | 3% | |
| Bertiethebus | 10/10 | 1962 days | 3.81 | 3% | |
| Julian Roots | 10/10 | 1993 days | 3.77 | 3% | |
| Lynette Nicolson | 10/10 | 2052 days | 3.69 | 2% | |
| RENs Rens | 10/10 | 2052 days | 3.69 | 2% | |
| CKDNH | 10/10 | 2113 days | 3.61 | 2% | |
| mattus | 9/10 | 2113 days | 3.61 | 2% | |
| Ken | 10/10 | 2113 days | 3.61 | 2% | |
| Kathy27 | 10/10 | 2113 days | 3.61 | 2% | |
| ladywithplants | 9/10 | 2174 days | 3.52 | 2% | |
| princessliz | 10/10 | 2174 days | 3.52 | 2% | |
| lariley | 9/10 | 2174 days | 3.52 | 2% | |
| richardp | 10/10 | 2205 days | 3.48 | 2% | |
| prasanth03 | 10/10 | 2236 days | 3.44 | 2% | |
| EllieW | 10/10 | 2266 days | 3.4 | 2% | |
| Terry | 10/10 | 2327 days | 3.31 | 2% | |
| Borderland | 10/10 | 2358 days | 3.27 | 2% | |
| jimbob | 10/10 | 2358 days | 3.27 | 2% | |
| mopheim | 10/10 | 2358 days | 3.27 | 2% | |
| Mats Harstedt | 9/10 | 2367 days | |
3.91 | 3% |
| KateS | 10/10 | 2387 days | 3.23 | 2% | |
| RubberDuck | 10/10 | 2418 days | 3.19 | 2% | |
| Red_Hurring | 10/10 | 2418 days | 3.19 | 2% | |
| travelpam | 10/10 | 2418 days | 3.19 | 2% | |
| barjjake | 9/10 | 2418 days | 3.19 | 2% | |
| cindyd | 10/10 | 2449 days | 3.15 | 2% | |
| webstersuk | 10/10 | 2449 days | 3.15 | 2% | |
| pezalone | 10/10 | 2449 days | 3.15 | 2% | |
| WiseOwl | 10/10 | 2449 days | 3.15 | 2% | |
| mausandhari | 10/10 | 2449 days | 3.15 | 2% | |
| Pauline | 10/10 | 2479 days | 3.1 | 2% | |
| JadesWorld | 9/10 | 2479 days | 3.1 | 2% | |
| utstarfish | 10/10 | 2479 days | 3.1 | 2% | |
| johnco78 | 10/10 | 2479 days | 3.1 | 2% | |
| jrwholey | 10/10 | 2510 days | 3.06 | 2% | |
| ShawnM | 10/10 | 2510 days | 3.06 | 2% | |
| Tarsh | 10/10 | 2510 days | 3.06 | 2% | |
| lindahealey | 10/10 | 2510 days | 3.06 | 2% | |
| campbell_steven | 10/10 | 2540 days | 3.02 | 2% | |
| markrussell | 10/10 | 2540 days | 3.02 | 2% | |
| Bayneer | 10/10 | 2540 days | 3.02 | 2% | |
| jaspreetsohal86 | 10/10 | 2540 days | 3.02 | 2% | |
| kiwiholly | 10/10 | 2540 days | 3.02 | 2% | |
| garethd1980 | 10/10 | 2540 days | 3.02 | 2% | |
| Mulliano | 10/10 | 2540 days | 3.02 | 2% | |
| CathyK | 10/10 | 2571 days | 2.98 | 2% | |
| silver | 10/10 | 2571 days | 2.98 | 2% | |
| Meyerclan | 10/10 | 2602 days | 2.94 | 2% | |
| poetania | 10/10 | 2632 days | 2.89 | 2% | |
| southernboy611 | 10/10 | 2632 days | 2.89 | 2% | |
| EvilChris | 10/10 | 2663 days | 2.85 | 2% | |
| nia427 | 10/10 | 2693 days | 2.81 | 2% | |
| Mags620 | 10/10 | 2693 days | 2.81 | 2% | |
| deanblackburn | 10/10 | 2693 days | 2.81 | 2% | |
| Heatherorchard | 10/10 | 2724 days | 2.77 | 2% | |
| BeetleBom | 10/10 | 2724 days | 2.77 | 2% | |
| AnnaBain | 10/10 | 2752 days | 2.73 | 2% | |
| geezer | 10/10 | 2752 days | 2.73 | 2% | |
| Jen | 10/10 | 2752 days | 2.73 | 2% | |
| busheybrew | 10/10 | 2752 days | 2.73 | 2% | |
| painter47 | 10/10 | 2783 days | 2.69 | 1% | |
| ganbji | 9/10 | 2783 days | 2.69 | 1% | |
| charles | 10/10 | 2814 days | 2.65 | 1% | |
| alanos | 9/10 | 2814 days | 2.65 | 1% | |
| teeneelz | 10/10 | 2814 days | 2.65 | 1% | |
| Douggie | 7/10 | 2905 days | 2.52 | 1% | |
| celticcolleen | 10/10 | 3028 days | 2.35 | 1% | |
| MarcyMark | 10/10 | 3058 days | 2.31 | 1% | |
| Susiekj | 10/10 | 3089 days | 2.27 | 1% | |
| Kirsten | 10/10 | 3117 days | 2.23 | 1% | |
| Ravi Chand | 10/10 | 3148 days | 2.19 | 1% | |
| Sika | 10/10 | 3148 days | 2.19 | 1% | |
| anthony mcclaren | 9/10 | 3148 days | 2.19 | 1% | |
| menzel | 10/10 | 3162 days | |
2.6 | 1% |
| joannaw | 10/10 | 3164 days | |
2.6 | 1% |
| meisterbaumann | 10/10 | 3179 days | 2.15 | 1% | |
| Stefanie Micheler | 10/10 | 3190 days | |
2.56 | 1% |
| Aussies | 10/10 | 3209 days | 2.1 | 1% | |
| Jake Volle | 10/10 | 3209 days | 2.1 | 1% | |
| Jess Woods | 10/10 | 3270 days | 2.02 | 1% | |
| emmah | 9/10 | 3306 days | |
2.37 | 1% |
| Dave Roebuck | 10/10 | 3332 days | 1.94 | 1% | |
| steph_m | 9/10 | 3432 days | 1.8 | 1% | |
| JasonL | 8/10 | 3435 days | |
2.15 | 1% |
| Tanja Kirschmann | 10/10 | 3437 days | 1.79 | 1% | |
| MicheyJ | 10/10 | 3438 days | 1.79 | 1% | |
| caz | 10/10 | 3459 days | 1.76 | 1% | |
| Cilla | 10/10 | 3464 days | |
2.11 | 1% |
| Hannah | 10/10 | 3467 days | 1.75 | 1% | |
| karlijn schaap | 10/10 | 3544 days | 1.65 | 0% | |
| Murray | 10/10 | 3574 days | 1.6 | 0% | |
| Jan Burch | 9/10 | 3686 days | 1.45 | 0% | |
| zane mirfin | 10/10 | 3742 days | 1.37 | 0% | |
| becky | 10/10 | 3770 days | 1.34 | 0% | |
| dave | 9/10 | 3798 days | 1.3 | 0% | |
| shinylight | 9/10 | 3830 days | 1.25 | 0% |
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
-0.84% Adjustment
There may be an adjustment if an experience hasn't received any reviews within the last 60 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 364 days.
The Tongariro River Rafting experience has been adjusted for 42 days. Adjustments are according to the following table.
| Days | Adjustment |
|---|---|
| … | … |
| 39 | -0.78% |
| 40 | -0.80% |
| 41 | -0.82% |
| 42 | -0.84% |
| 43 | -0.86% |
| 44 | -0.88% |
| 45 | -0.90% |
| … | … |
Final Ranking Score
98%
The final ranking score once adjustments and rounding has been applied. This value is cached and recalculated each day. Therefore it may not be precisely accurate based on the other values presented.
If you have any questions or comments about our ranking score calculation please get in touch at info@rankers.co.nz.