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
185 Valid Reviews
The PiwiWiwi Campervans experience has a total of 190 reviews. There are 185 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 185 valid reviews:
| Rating | Count | Percentage | |
|---|---|---|---|
| 10/10 | 171 |
|
92% |
| 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 185 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 185 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
98.78%
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 |
|---|---|---|---|---|---|
| Darryl Neo | 10/10 | 109 days | 98.12 | 100% | |
| Harry Newton | 10/10 | 109 days | 98.12 | 100% | |
| Brooke | 10/10 | 109 days | 98.12 | 100% | |
| Felicia and Andy | 10/10 | 139 days | 96.94 | 99% | |
| LB & Michael | 10/10 | 139 days | 96.94 | 99% | |
| Päivi and John Anderson | 8/10 | 139 days | 92.09 | 94% | |
| Matt Linton | 10/10 | 170 days | 95.42 | 97% | |
| Sandy Curry | 9/10 | 170 days | 95.42 | 97% | |
| Scott Browning | 10/10 | 170 days | 95.42 | 97% | |
| Matthijs, Anouk en Mika Smit | 10/10 | 170 days | 95.42 | 97% | |
| Maija Morgenweck | 10/10 | 170 days | 95.42 | 97% | |
| JPliska | 10/10 | 198 days | 93.79 | 95% | |
| Henry Meehan | 10/10 | 198 days | 93.79 | 95% | |
| Zoran | 10/10 | 198 days | 93.79 | 95% | |
| Svea Brömel | 10/10 | 198 days | 93.79 | 95% | |
| Martin and Nikola | 10/10 | 198 days | 93.79 | 95% | |
| John and Barbara | 10/10 | 229 days | 91.69 | 93% | |
| Phillip Hartin | 10/10 | 229 days | 91.69 | 93% | |
| Andrew Borch | 10/10 | 229 days | 91.69 | 93% | |
| Niek and Anne (The Netherlands) | 10/10 | 229 days | 91.69 | 93% | |
| Joash Picard | 10/10 | 260 days | 89.29 | 91% | |
| Carrie | 10/10 | 260 days | 89.29 | 91% | |
| Zoe | 10/10 | 260 days | 89.29 | 91% | |
| Kara & Joash | 10/10 | 260 days | 89.29 | 91% | |
| Marian van Voorn | 9/10 | 260 days | 89.29 | 91% | |
| Amandine | 10/10 | 260 days | 89.29 | 91% | |
| David Aylmore | 9/10 | 290 days | 86.67 | 88% | |
| Saliha Hamici | 10/10 | 290 days | 86.67 | 88% | |
| Sebastian Torfs | 10/10 | 290 days | 86.67 | 88% | |
| Lochoe Mckinnon | 10/10 | 321 days | 83.67 | 85% | |
| Eric | 10/10 | 321 days | 83.67 | 85% | |
| Mia Tranthem | 10/10 | 321 days | 83.67 | 85% | |
| kael Matthews | 10/10 | 321 days | 83.67 | 85% | |
| Sophie Skinner | 10/10 | 321 days | 83.67 | 85% | |
| Eddie | 10/10 | 474 days | 64.4 | 65% | |
| hazel woodhead | 10/10 | 474 days | 64.4 | 65% | |
| Tom Smithwick | 10/10 | 504 days | 59.75 | 60% | |
| Matt | 10/10 | 504 days | 59.75 | 60% | |
| John Sivigny | 10/10 | 504 days | 59.75 | 60% | |
| Lizzie Watts | 10/10 | 504 days | 59.75 | 60% | |
| Jonathan Clay | 10/10 | 535 days | 54.64 | 55% | |
| Marita O'Brien | 10/10 | 535 days | 54.64 | 55% | |
| Jan | 9/10 | 535 days | 54.64 | 55% | |
| Henry | 10/10 | 535 days | 54.64 | 55% | |
| Andy Barlow | 10/10 | 563 days | 49.85 | 50% | |
| kath combes | 10/10 | 563 days | 49.85 | 50% | |
| Roz Lobo | 10/10 | 563 days | 49.85 | 50% | |
| Jorg | 10/10 | 563 days | 49.85 | 50% | |
| Georgia | 10/10 | 563 days | 49.85 | 50% | |
| Joss, Georgia and Stef | 10/10 | 563 days | 49.85 | 50% | |
| petra | 10/10 | 594 days | 44.77 | 44% | |
| Richard Janes | 10/10 | 594 days | 44.77 | 44% | |
| Kristel & Tim | 10/10 | 594 days | 44.77 | 44% | |
| Felix Maliers | 10/10 | 594 days | 44.77 | 44% | |
| Greg and Syd | 9/10 | 625 days | 40.0 | 39% | |
| Rebecca Grace | 10/10 | 625 days | 40.0 | 39% | |
| Julia | 9/10 | 625 days | 40.0 | 39% | |
| Jonas Himpe | 10/10 | 655 days | 35.68 | 35% | |
| kohn stephan | 10/10 | 655 days | 35.68 | 35% | |
| Tim Leary | 10/10 | 655 days | 35.68 | 35% | |
| Tom Coul | 10/10 | 655 days | 35.68 | 35% | |
| Kim Verplancke | 10/10 | 655 days | 35.68 | 35% | |
| Chris Scrimshaw | 10/10 | 655 days | 35.68 | 35% | |
| Martina & Trev from Switzerland | 10/10 | 655 days | 35.68 | 35% | |
| Wendy and Vincent | 10/10 | 686 days | 31.51 | 31% | |
| James N | 10/10 | 778 days | 20.92 | 20% | |
| Gert van der Lugt | 10/10 | 900 days | 11.03 | 9% | |
| Stefan Giese | 10/10 | 900 days | 11.03 | 9% | |
| Hendrik Pschichholtz | 10/10 | 900 days | 11.03 | 9% | |
| Ray Verbeek | 10/10 | 900 days | 11.03 | 9% | |
| Andreas Herzog | 10/10 | 928 days | 9.42 | 8% | |
| Tracy Frauzel | 10/10 | 936 days |  |
9.01 | 7% |
| michel labrecque | 10/10 | 959 days | 7.93 | 6% | |
| Garrett South | 10/10 | 959 days | 7.93 | 6% | |
| Sofia Vadman | 10/10 | 959 days | 7.93 | 6% | |
| Patricia Pharr-Snyder | 10/10 | 1020 days | 5.89 | 4% | |
| Gabriel Wappler | 10/10 | 1234 days | 4.79 | 3% | |
| Phillip M | 10/10 | 1265 days | 4.74 | 3% | |
| Sarah Considine | 10/10 | 1265 days | 4.74 | 3% | |
| Jack + Jade Hughes | 10/10 | 1265 days | 4.74 | 3% | |
| Gerry Fijal | 10/10 | 1265 days | 4.74 | 3% | |
| Melanie Keller | 10/10 | 1265 days | 4.74 | 3% | |
| Jasper S | 10/10 | 1294 days | 4.7 | 3% | |
| Linc | 9/10 | 1325 days | 4.65 | 3% | |
| Rose Gutekunst | 10/10 | 1325 days | 4.65 | 3% | |
| Marcel Janser | 10/10 | 1325 days | 4.65 | 3% | |
| Vicki Janes | 10/10 | 1356 days | 4.6 | 3% | |
| Ky Phillips | 10/10 | 1417 days | 4.51 | 2% | |
| Taylor Wirth | 10/10 | 1447 days | 4.46 | 2% | |
| Emma Gaylord | 10/10 | 1447 days | 4.46 | 2% | |
| Jean Capron | 10/10 | 1600 days | 4.23 | 2% | |
| Barbara | 10/10 | 1600 days | 4.23 | 2% | |
| Jan Menzies | 10/10 | 1600 days | 4.23 | 2% | |
| Jenny Mulholland | 10/10 | 1631 days | 4.18 | 2% | |
| Charles norris | 10/10 | 1631 days | 4.18 | 2% | |
| Lee & Sarah . | 10/10 | 1631 days | 4.18 | 2% | |
| Abi Fielder | 10/10 | 1659 days | 4.14 | 2% | |
| janny van der Burg | 10/10 | 1659 days | 4.14 | 2% | |
| HANNAH BROOKSBANK | 10/10 | 1659 days | 4.14 | 2% | |
| Simon Betschart | 10/10 | 1659 days | 4.14 | 2% | |
| Yannick | 10/10 | 1690 days | 4.09 | 2% | |
| MikeHoncho | 10/10 | 1690 days | 4.09 | 2% | |
| Dave Ruijter | 10/10 | 1690 days | 4.09 | 2% | |
| Alison Gemrany | 10/10 | 1690 days | 4.09 | 2% | |
| AndyDavies | 10/10 | 1721 days | 4.05 | 2% | |
| Priscilla | 10/10 | 1751 days | 4.0 | 2% | |
| Sarah Jones | 10/10 | 1751 days | 4.0 | 2% | |
| Erwin & Dani Matijsen | 10/10 | 1751 days | 4.0 | 2% | |
| Alanna Y | 10/10 | 1751 days | 4.0 | 2% | |
| Sal Hubert | 10/10 | 1781 days | |
3.96 | 2% |
| Mia & Martin | 10/10 | 1782 days | 3.95 | 2% | |
| Adam Miller | 10/10 | 1812 days | 3.91 | 2% | |
| Joe Kuchman | 10/10 | 1935 days | 3.72 | 2% | |
| Ryan & Rita Pierce | 10/10 | 1965 days | 3.68 | 2% | |
| Janet Mook | 9/10 | 1996 days | 3.63 | 1% | |
| Andy/Robyn Long | 10/10 | 1996 days | 3.63 | 1% | |
| Jon Jamie | 10/10 | 1996 days | 3.63 | 1% | |
| Erica Bradford | 10/10 | 2024 days | 3.59 | 1% | |
| Paulo Dias | 10/10 | 2024 days | 3.59 | 1% | |
| Jana Zanetto | 10/10 | 2024 days | 3.59 | 1% | |
| David Haines-Hanham | 10/10 | 2030 days | |
3.58 | 1% |
| Sally Haines | 10/10 | 2030 days | |
3.58 | 1% |
| Katie | 10/10 | 2055 days | 3.54 | 1% | |
| Stefanie Summer | 10/10 | 2055 days | 3.54 | 1% | |
| seb_lag | 9/10 | 2055 days | 3.54 | 1% | |
| Geo | 10/10 | 2055 days | 3.54 | 1% | |
| Ineke & Wouter | 8/10 | 2055 days | 3.36 | 1% | |
| sally haines-hanham | 10/10 | 2055 days | 3.54 | 1% | |
| Marc Greeve | 10/10 | 2063 days | |
3.53 | 1% |
| Paul Eaves | 10/10 | 2116 days | 3.45 | 1% | |
| Anna Barber | 9/10 | 2116 days | 3.45 | 1% | |
| Adam | 10/10 | 2147 days | 3.4 | 1% | |
| Rob & Margot | 10/10 | 2177 days | 3.35 | 1% | |
| Vikki reeves | 10/10 | 2177 days | 3.35 | 1% | |
| Gerard McAuley | 10/10 | 2177 days | 3.35 | 1% | |
| Stephanie | 10/10 | 2181 days | |
3.35 | 1% |
| Ben Z | 10/10 | 2330 days | 3.12 | 1% | |
| GLD | 10/10 | 2361 days | 3.07 | 1% | |
| Colin Bond | 10/10 | 2361 days | 3.07 | 1% | |
| HandH | 10/10 | 2361 days | 3.07 | 1% | |
| Chris Ledwig | 10/10 | 2361 days | 3.07 | 1% | |
| joepolog40 | 10/10 | 2361 days | 3.07 | 1% | |
| titougreg29 | 10/10 | 2389 days | 3.03 | 1% | |
| Brian | 10/10 | 2389 days | 3.03 | 1% | |
| Wibo de Vries | 10/10 | 2389 days | 3.03 | 1% | |
| Katie&Mike U | 10/10 | 2389 days | 3.03 | 1% | |
| Peg Wooten | 10/10 | 2420 days | 2.98 | 1% | |
| Marc Hoskins | 10/10 | 2420 days | 2.98 | 1% | |
| Velvette | 10/10 | 2420 days | 2.98 | 1% | |
| Stephanie Zellerer | 10/10 | 2420 days | 2.98 | 1% | |
| Tina Gehmecker | 10/10 | 2420 days | 2.98 | 1% | |
| paulcallanan | 10/10 | 2420 days | 2.98 | 1% | |
| Tom Batty | 10/10 | 2420 days | 2.98 | 1% | |
| Dave Worthington | 10/10 | 2420 days | 2.98 | 1% | |
| Jodie Cronk | 10/10 | 2420 days | 2.98 | 1% | |
| Jen&Digs M | 10/10 | 2451 days | 2.94 | 1% | |
| Paul Leow | 10/10 | 2451 days | 2.94 | 1% | |
| phnz | 10/10 | 2451 days | 2.94 | 1% | |
| medellia371 | 10/10 | 2481 days | 2.89 | 1% | |
| Ihopkin | 10/10 | 2481 days | 2.89 | 1% | |
| dan_robyn | 10/10 | 2512 days | 2.84 | 1% | |
| erinlongtrail | 10/10 | 2512 days | 2.84 | 1% | |
| sal | 10/10 | 2542 days | 2.8 | 1% | |
| Horius | 10/10 | 2542 days | 2.8 | 1% | |
| kayburns | 9/10 | 2542 days | 2.8 | 1% | |
| Funkytiptoe | 10/10 | 2542 days | 2.8 | 1% | |
| Christian Fell | 10/10 | 2542 days | 2.8 | 1% | |
| aloedriscoll | 10/10 | 2665 days | 2.61 | 0% | |
| h schmidt | 10/10 | 2695 days | 2.56 | 0% | |
| jensmitty | 10/10 | 2695 days | 2.56 | 0% | |
| aubreyfalk | 10/10 | 2695 days | 2.56 | 0% | |
| WDC_Oxfam2012 | 10/10 | 2695 days | 2.56 | 0% | |
| doublesessions | 9/10 | 2726 days | 2.52 | 0% | |
| tdean | 10/10 | 2726 days | 2.52 | 0% | |
| Ewan | 10/10 | 2726 days | 2.52 | 0% | |
| StefanKatie | 10/10 | 2755 days | 2.47 | 0% | |
| François | 10/10 | 2786 days | 2.43 | 0% | |
| essy | 10/10 | 2817 days | 2.38 | 0% | |
| Bkeeping | 10/10 | 2817 days | 2.38 | 0% | |
| mandaroni | 10/10 | 2847 days | 2.33 | 0% | |
| cioffil | 10/10 | 2878 days | 2.29 | 0% | |
| jackmason | 10/10 | 2878 days | 2.29 | 0% | |
| greanman | 10/10 | 2878 days | 2.29 | 0% | |
| jimmynew7121 | 10/10 | 2908 days | 2.24 | 0% | |
| lmharwood | 10/10 | 2939 days | 2.19 | 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
-2.85% 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 26 days. Adjustments are according to the following table.
| Days | Adjustment |
|---|---|
| … | … |
| 23 | -0.46% |
| 24 | -0.48% |
| 25 | -0.50% |
| 26 | -0.52% |
| 27 | -0.54% |
| 28 | -0.56% |
| 29 | -0.58% |
| … | … |
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.