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 PiwiWiwi Campervans.
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.
PiwiWiwi Campervans
Valid Reviews
187 Valid Reviews
The PiwiWiwi Campervans experience has a total of 192 reviews. There are 187 valid reviews that are included when calculating the ranking score and 5 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 187 valid reviews:
| Rating | Count | Percentage | |
|---|---|---|---|
| 10/10 | 173 |
|
93% |
| 9/10 | 12 |
|
6% |
| 8/10 | 2 |
|
1% |
| 7/10 | 0 |
|
0% |
| 6/10 | 0 |
|
0% |
| 5/10 | 0 |
|
0% |
| 4/10 | 0 |
|
0% |
| 3/10 | 0 |
|
0% |
| 2/10 | 0 |
|
0% |
| 1/10 | 0 |
|
0% |
99.14% Average
The raw data average (mean) for all the PiwiWiwi Campervans valid reviews is 99.14% and is based on 187 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
6 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 187 valid reviews, the experience has 6 face-to-face reviews collected during interviews by our team.
Below is the distribution of ratings for the 6 face-to-face reviews:
| Rating | Count | Percentage | |
|---|---|---|---|
| 10/10 | 6 |
|
100% |
| 9/10 | 0 |
|
0% |
| 8/10 | 0 |
|
0% |
| 7/10 | 0 |
|
0% |
| 6/10 | 0 |
|
0% |
| 5/10 | 0 |
|
0% |
| 4/10 | 0 |
|
0% |
| 3/10 | 0 |
|
0% |
| 2/10 | 0 |
|
0% |
| 1/10 | 0 |
|
0% |
100.00% Average
The raw data average (mean) for all the PiwiWiwi Campervans face-to-face reviews is 100.00% and is based on 6 face-to-face reviews. This value is not used to calculate the ranking score and it only provided here for comparison purposes.
Weighted Average
98.81%
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 |
|---|---|---|---|---|---|
| John Sivigny | 10/10 | 45 days | 99.68 | 100% | |
| Maureen Clarke | 10/10 | 45 days | 99.68 | 100% | |
| Darryl Neo | 10/10 | 168 days | 95.53 | 96% | |
| Harry Newton | 10/10 | 168 days | 95.53 | 96% | |
| Brooke | 10/10 | 168 days | 95.53 | 96% | |
| Felicia and Andy | 10/10 | 198 days | 93.79 | 94% | |
| LB & Michael | 10/10 | 198 days | 93.79 | 94% | |
| Päivi and John Anderson | 8/10 | 198 days | 89.1 | 89% | |
| Matt Linton | 10/10 | 229 days | 91.69 | 92% | |
| Sandy Curry | 9/10 | 229 days | 91.69 | 92% | |
| Scott Browning | 10/10 | 229 days | 91.69 | 92% | |
| Matthijs, Anouk en Mika Smit | 10/10 | 229 days | 91.69 | 92% | |
| Maija Morgenweck | 10/10 | 229 days | 91.69 | 92% | |
| JPliska | 10/10 | 257 days | 89.53 | 90% | |
| Henry Meehan | 10/10 | 257 days | 89.53 | 90% | |
| Zoran | 10/10 | 257 days | 89.53 | 90% | |
| Svea Brömel | 10/10 | 257 days | 89.53 | 90% | |
| Martin and Nikola | 10/10 | 257 days | 89.53 | 90% | |
| John and Barbara | 10/10 | 288 days | 86.86 | 87% | |
| Phillip Hartin | 10/10 | 288 days | 86.86 | 87% | |
| Andrew Borch | 10/10 | 288 days | 86.86 | 87% | |
| Niek and Anne (The Netherlands) | 10/10 | 288 days | 86.86 | 87% | |
| Joash Picard | 10/10 | 318 days | 83.98 | 84% | |
| Carrie | 10/10 | 319 days | 83.87 | 84% | |
| Zoe | 10/10 | 319 days | 83.87 | 84% | |
| Kara & Joash | 10/10 | 319 days | 83.87 | 84% | |
| Marian van Voorn | 9/10 | 319 days | 83.87 | 84% | |
| Amandine | 10/10 | 319 days | 83.87 | 84% | |
| David Aylmore | 9/10 | 348 days | 80.81 | 81% | |
| Saliha Hamici | 10/10 | 349 days | 80.7 | 81% | |
| Sebastian Torfs | 10/10 | 349 days | 80.7 | 81% | |
| Lochoe Mckinnon | 10/10 | 379 days | 77.24 | 77% | |
| Eric | 10/10 | 380 days | 77.12 | 77% | |
| Mia Tranthem | 10/10 | 380 days | 77.12 | 77% | |
| kael Matthews | 10/10 | 380 days | 77.12 | 77% | |
| Sophie Skinner | 10/10 | 380 days | 77.12 | 77% | |
| Eddie | 10/10 | 533 days | 54.98 | 54% | |
| hazel woodhead | 10/10 | 533 days | 54.98 | 54% | |
| Tom Smithwick | 10/10 | 562 days | 50.02 | 49% | |
| Matt | 10/10 | 563 days | 49.85 | 49% | |
| John Sivigny | 10/10 | 563 days | 49.85 | 49% | |
| Lizzie Watts | 10/10 | 563 days | 49.85 | 49% | |
| Jonathan Clay | 10/10 | 594 days | 44.77 | 44% | |
| Marita O'Brien | 10/10 | 594 days | 44.77 | 44% | |
| Jan | 9/10 | 594 days | 44.77 | 44% | |
| Henry | 10/10 | 594 days | 44.77 | 44% | |
| Andy Barlow | 10/10 | 622 days | 40.45 | 40% | |
| kath combes | 10/10 | 622 days | 40.45 | 40% | |
| Roz Lobo | 10/10 | 622 days | 40.45 | 40% | |
| Jorg | 10/10 | 622 days | 40.45 | 40% | |
| Georgia | 10/10 | 622 days | 40.45 | 40% | |
| Joss, Georgia and Stef | 10/10 | 622 days | 40.45 | 40% | |
| petra | 10/10 | 652 days | 36.1 | 35% | |
| Richard Janes | 10/10 | 652 days | 36.1 | 35% | |
| Kristel & Tim | 10/10 | 652 days | 36.1 | 35% | |
| Felix Maliers | 10/10 | 653 days | 35.96 | 35% | |
| Greg and Syd | 9/10 | 683 days | 31.9 | 31% | |
| Rebecca Grace | 10/10 | 683 days | 31.9 | 31% | |
| Julia | 9/10 | 684 days | 31.77 | 31% | |
| Jonas Himpe | 10/10 | 713 days | 28.12 | 27% | |
| kohn stephan | 10/10 | 713 days | 28.12 | 27% | |
| Tim Leary | 10/10 | 713 days | 28.12 | 27% | |
| Tom Coul | 10/10 | 713 days | 28.12 | 27% | |
| Kim Verplancke | 10/10 | 713 days | 28.12 | 27% | |
| Chris Scrimshaw | 10/10 | 713 days | 28.12 | 27% | |
| Martina & Trev from Switzerland | 10/10 | 714 days | 28.0 | 27% | |
| Wendy and Vincent | 10/10 | 744 days | 24.52 | 23% | |
| James N | 10/10 | 836 days | 15.63 | 14% | |
| Gert van der Lugt | 10/10 | 958 days | 7.97 | 6% | |
| Stefan Giese | 10/10 | 958 days | 7.97 | 6% | |
| Hendrik Pschichholtz | 10/10 | 958 days | 7.97 | 6% | |
| Ray Verbeek | 10/10 | 958 days | 7.97 | 6% | |
| Andreas Herzog | 10/10 | 986 days | 6.88 | 5% | |
| Tracy Frauzel | 10/10 | 995 days |  |
6.58 | 5% |
| michel labrecque | 10/10 | 1017 days | 5.96 | 4% | |
| Garrett South | 10/10 | 1017 days | 5.96 | 4% | |
| Sofia Vadman | 10/10 | 1017 days | 5.96 | 4% | |
| Patricia Pharr-Snyder | 10/10 | 1078 days | 5.05 | 3% | |
| Gabriel Wappler | 10/10 | 1292 days | 4.66 | 3% | |
| Phillip M | 10/10 | 1323 days | 4.61 | 3% | |
| Sarah Considine | 10/10 | 1323 days | 4.61 | 3% | |
| Jack + Jade Hughes | 10/10 | 1323 days | 4.61 | 3% | |
| Gerry Fijal | 10/10 | 1323 days | 4.61 | 3% | |
| Melanie Keller | 10/10 | 1323 days | 4.61 | 3% | |
| Jasper S | 10/10 | 1352 days | 4.56 | 3% | |
| Linc | 9/10 | 1383 days | 4.51 | 3% | |
| Rose Gutekunst | 10/10 | 1383 days | 4.51 | 3% | |
| Marcel Janser | 10/10 | 1383 days | 4.51 | 3% | |
| Vicki Janes | 10/10 | 1414 days | 4.45 | 3% | |
| Ky Phillips | 10/10 | 1476 days | 4.35 | 3% | |
| Taylor Wirth | 10/10 | 1505 days | 4.3 | 3% | |
| Emma Gaylord | 10/10 | 1505 days | 4.3 | 3% | |
| Jean Capron | 10/10 | 1658 days | 4.04 | 2% | |
| Barbara | 10/10 | 1658 days | 4.04 | 2% | |
| Jan Menzies | 10/10 | 1658 days | 4.04 | 2% | |
| Jenny Mulholland | 10/10 | 1689 days | 3.98 | 2% | |
| Charles norris | 10/10 | 1689 days | 3.98 | 2% | |
| Lee & Sarah . | 10/10 | 1689 days | 3.98 | 2% | |
| Abi Fielder | 10/10 | 1717 days | 3.93 | 2% | |
| janny van der Burg | 10/10 | 1717 days | 3.93 | 2% | |
| HANNAH BROOKSBANK | 10/10 | 1717 days | 3.93 | 2% | |
| Simon Betschart | 10/10 | 1717 days | 3.93 | 2% | |
| Yannick | 10/10 | 1748 days | 3.88 | 2% | |
| MikeHoncho | 10/10 | 1748 days | 3.88 | 2% | |
| Dave Ruijter | 10/10 | 1748 days | 3.88 | 2% | |
| Alison Gemrany | 10/10 | 1748 days | 3.88 | 2% | |
| AndyDavies | 10/10 | 1779 days | 3.83 | 2% | |
| Priscilla | 10/10 | 1809 days | 3.78 | 2% | |
| Sarah Jones | 10/10 | 1809 days | 3.78 | 2% | |
| Erwin & Dani Matijsen | 10/10 | 1809 days | 3.78 | 2% | |
| Alanna Y | 10/10 | 1809 days | 3.78 | 2% | |
| Sal Hubert | 10/10 | 1840 days | |
3.72 | 2% |
| Mia & Martin | 10/10 | 1840 days | 3.72 | 2% | |
| Adam Miller | 10/10 | 1870 days | 3.67 | 2% | |
| Joe Kuchman | 10/10 | 1994 days | 3.46 | 2% | |
| Ryan & Rita Pierce | 10/10 | 2024 days | 3.41 | 2% | |
| Janet Mook | 9/10 | 2055 days | 3.36 | 2% | |
| Andy/Robyn Long | 10/10 | 2055 days | 3.36 | 2% | |
| Jon Jamie | 10/10 | 2055 days | 3.36 | 2% | |
| Erica Bradford | 10/10 | 2083 days | 3.31 | 2% | |
| Paulo Dias | 10/10 | 2083 days | 3.31 | 2% | |
| Jana Zanetto | 10/10 | 2083 days | 3.31 | 2% | |
| David Haines-Hanham | 10/10 | 2089 days | |
3.3 | 2% |
| Sally Haines | 10/10 | 2089 days | |
3.3 | 2% |
| Katie | 10/10 | 2114 days | 3.26 | 2% | |
| Stefanie Summer | 10/10 | 2114 days | 3.26 | 2% | |
| seb_lag | 9/10 | 2114 days | 3.26 | 2% | |
| Geo | 10/10 | 2114 days | 3.26 | 2% | |
| Ineke & Wouter | 8/10 | 2114 days | 3.09 | 1% | |
| sally haines-hanham | 10/10 | 2114 days | 3.26 | 2% | |
| Marc Greeve | 10/10 | 2122 days | |
3.24 | 2% |
| Paul Eaves | 10/10 | 2175 days | 3.15 | 1% | |
| Anna Barber | 9/10 | 2175 days | 3.15 | 1% | |
| Adam | 10/10 | 2206 days | 3.1 | 1% | |
| Rob & Margot | 10/10 | 2236 days | 3.05 | 1% | |
| Vikki reeves | 10/10 | 2236 days | 3.05 | 1% | |
| Gerard McAuley | 10/10 | 2236 days | 3.05 | 1% | |
| Stephanie | 10/10 | 2240 days | |
3.04 | 1% |
| Ben Z | 10/10 | 2389 days | 2.78 | 1% | |
| GLD | 10/10 | 2420 days | 2.73 | 1% | |
| Colin Bond | 10/10 | 2420 days | 2.73 | 1% | |
| HandH | 10/10 | 2420 days | 2.73 | 1% | |
| Chris Ledwig | 10/10 | 2420 days | 2.73 | 1% | |
| joepolog40 | 10/10 | 2420 days | 2.73 | 1% | |
| titougreg29 | 10/10 | 2448 days | 2.68 | 1% | |
| Brian | 10/10 | 2448 days | 2.68 | 1% | |
| Wibo de Vries | 10/10 | 2448 days | 2.68 | 1% | |
| Katie&Mike U | 10/10 | 2448 days | 2.68 | 1% | |
| Peg Wooten | 10/10 | 2479 days | 2.63 | 1% | |
| Marc Hoskins | 10/10 | 2479 days | 2.63 | 1% | |
| Velvette | 10/10 | 2479 days | 2.63 | 1% | |
| Stephanie Zellerer | 10/10 | 2479 days | 2.63 | 1% | |
| Tina Gehmecker | 10/10 | 2479 days | 2.63 | 1% | |
| paulcallanan | 10/10 | 2479 days | 2.63 | 1% | |
| Tom Batty | 10/10 | 2479 days | 2.63 | 1% | |
| Dave Worthington | 10/10 | 2479 days | 2.63 | 1% | |
| Jodie Cronk | 10/10 | 2479 days | 2.63 | 1% | |
| Jen&Digs M | 10/10 | 2510 days | 2.58 | 1% | |
| Paul Leow | 10/10 | 2510 days | 2.58 | 1% | |
| phnz | 10/10 | 2510 days | 2.58 | 1% | |
| medellia371 | 10/10 | 2540 days | 2.53 | 1% | |
| Ihopkin | 10/10 | 2540 days | 2.53 | 1% | |
| dan_robyn | 10/10 | 2571 days | 2.47 | 1% | |
| erinlongtrail | 10/10 | 2571 days | 2.47 | 1% | |
| sal | 10/10 | 2601 days | 2.42 | 1% | |
| Horius | 10/10 | 2601 days | 2.42 | 1% | |
| kayburns | 9/10 | 2601 days | 2.42 | 1% | |
| Funkytiptoe | 10/10 | 2601 days | 2.42 | 1% | |
| Christian Fell | 10/10 | 2601 days | 2.42 | 1% | |
| aloedriscoll | 10/10 | 2724 days | 2.21 | 0% | |
| h schmidt | 10/10 | 2754 days | 2.16 | 0% | |
| jensmitty | 10/10 | 2754 days | 2.16 | 0% | |
| aubreyfalk | 10/10 | 2754 days | 2.16 | 0% | |
| WDC_Oxfam2012 | 10/10 | 2754 days | 2.16 | 0% | |
| doublesessions | 9/10 | 2785 days | 2.11 | 0% | |
| tdean | 10/10 | 2785 days | 2.11 | 0% | |
| Ewan | 10/10 | 2785 days | 2.11 | 0% | |
| StefanKatie | 10/10 | 2814 days | 2.06 | 0% | |
| François | 10/10 | 2845 days | 2.0 | 0% | |
| essy | 10/10 | 2876 days | 1.95 | 0% | |
| Bkeeping | 10/10 | 2876 days | 1.95 | 0% | |
| mandaroni | 10/10 | 2906 days | 1.9 | 0% | |
| cioffil | 10/10 | 2937 days | 1.85 | 0% | |
| jackmason | 10/10 | 2937 days | 1.85 | 0% | |
| greanman | 10/10 | 2937 days | 1.85 | 0% | |
| jimmynew7121 | 10/10 | 2967 days | 1.79 | 0% | |
| lmharwood | 10/10 | 2998 days | 1.74 | 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 PiwiWiwi Campervans experience has plenty of reviews and does not meet the criteria for any adjustment.
Recent Reviews Adjustment
-2.77% Adjustment
Recent reviews reflect the experience as it currently operates. This means it's important to get fresh reviews. Some experiences discovered they could get a few good reviews and then, resting on their laurels, discourage any further reviews. This adjustment stimulates experiences to be positively involved in the review generating process and discourages them from manipulating the ranking system in this manner. There may be an adjustment if an experience hasn't received any reviews within the last 60 days.
The PiwiWiwi Campervans experience has 2 recent rankings. Adjustments are according to the following table:
| Recent Reviews | Adjustment |
|---|---|
| 0 | -3.00% |
| 1 | -2.83% |
| 2 | -2.33% |
| 3 | -1.50% |
| 4 | -0.67% |
| 5 | -0.17% |
| 6 | -0.00% |
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 199 days.
The PiwiWiwi Campervans experience has been adjusted for 22 days. Adjustments are according to the following table.
| Days | Adjustment |
|---|---|
| … | … |
| 19 | -0.38% |
| 20 | -0.40% |
| 21 | -0.42% |
| 22 | -0.44% |
| 23 | -0.46% |
| 24 | -0.48% |
| 25 | -0.50% |
| … | … |
Final Ranking Score
96%
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.