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.

Nick Morrison's avatar

Nick Morrison

Rankers owner

PiwiWiwi Campervans

Valid Reviews

249 Valid Reviews

The PiwiWiwi Campervans experience has a total of 255 reviews. There are 249 valid reviews that are included when calculating the ranking score and 6 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 249 valid reviews:

Rating Count Percentage
10/10 231
93%
9/10 15
6%
8/10 3
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%

99.16% Average

The raw data average (mean) for all the PiwiWiwi Campervans valid reviews is 99.16% and is based on 249 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 249 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

99.13%

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
Nienke 10/10 16 days 100%
Luana 10/10 16 days 100%
Charlotte 10/10 47 days 100%
Nicole 10/10 169 days 96%
Mikki 10/10 291 days 87%
Trudy and Mark Watts 8/10 291 days 82%
Brad Wilson 10/10 291 days 87%
Dan Couchman 10/10 291 days 87%
Jonathan 10/10 291 days 87%
Emily 10/10 322 days 84%
Jesse O 10/10 322 days 84%
Barbara and Paul 10/10 350 days 81%
Louise 10/10 350 days 81%
Richie Miller 10/10 381 days 77%
B&L 10/10 412 days 73%
Lee Beever 10/10 442 days 69%
Aliena 10/10 442 days 69%
Anneke Togo 10/10 473 days 65%
Lynne and Julie 10/10 473 days 65%
Lucy Evans 10/10 473 days 65%
Marie and Cameron 10/10 473 days 65%
Antonia 10/10 565 days 50%
Charles & Sophie 10/10 565 days 50%
Tess 10/10 626 days 40%
Sam 10/10 626 days 40%
Sarah Creegan 10/10 687 days 31%
Angela Gray 10/10 687 days 31%
Matt Linton 10/10 687 days 31%
Ashleigh Lim 10/10 687 days 31%
Hartmut 10/10 687 days 31%
Elyse 10/10 687 days 31%
Kevin Merrill 10/10 716 days 28%
Mark Slaski 10/10 716 days 28%
Daisy Baish 10/10 716 days 28%
Emma Hamasaki 9/10 716 days 28%
Katie OBlock 10/10 716 days 28%
Markus Salomon 10/10 716 days 28%
Chris Felicetta 10/10 747 days 24%
Janet 10/10 747 days 24%
Phillip H 10/10 747 days 24%
Tia 10/10 747 days 24%
Kilolimabravo 10/10 747 days 24%
Nichole Braase 10/10 747 days 24%
Sara & Michael 10/10 747 days 24%
Sally and Davy 10/10 778 days 21%
M. Nederveen 9/10 778 days 21%
Melanie 10/10 778 days 21%
Katie Cooper 10/10 778 days 21%
Ed & Catherine 9/10 778 days 21%
Katherine Paschall 10/10 807 days 18%
Sandra 10/10 808 days 18%
Rebecca Sutherland 10/10 808 days 18%
Olga and Evan Patronik 10/10 808 days 18%
Lore & Sébastien 10/10 808 days 18%
Scott and Zef 10/10 808 days 18%
Sophie Van Tol 10/10 838 days 15%
Maire Peate 10/10 839 days 15%
Avalon Ridler 10/10 839 days 15%
Sarah 10/10 839 days 15%
Jonneke van de Kamp 10/10 839 days 15%
jess c 10/10 839 days 15%
John Sivigny 10/10 869 days 13%
Maureen Clarke 10/10 869 days 13%
Stephen Hall 10/10 869 days 13%
Darryl Neo 10/10 992 days 7%
Harry Newton 10/10 992 days 7%
Brooke 10/10 992 days 7%
Felicia and Andy 10/10 1022 days 6%
LB & Michael 10/10 1022 days 6%
Päivi and John Anderson 8/10 1022 days 6%
Matt Linton 10/10 1053 days 5%
Sandy Curry 9/10 1053 days 5%
Scott Browning 10/10 1053 days 5%
Matthijs, Anouk en Mika Smit 10/10 1053 days 5%
Maija Morgenweck 10/10 1053 days 5%
JPliska 10/10 1081 days 5%
Henry Meehan 10/10 1081 days 5%
Zoran 10/10 1081 days 5%
Svea Brömel 10/10 1081 days 5%
Martin and Nikola 10/10 1081 days 5%
John and Barbara 10/10 1112 days 5%
Phillip Hartin 10/10 1112 days 5%
Andrew Borch 10/10 1112 days 5%
Niek and Anne (The Netherlands) 10/10 1112 days 5%
Joash Picard 10/10 1142 days 5%
Carrie 10/10 1143 days 5%
Zoe 10/10 1143 days 5%
Kara & Joash 10/10 1143 days 5%
Marian van Voorn 9/10 1143 days 5%
Amandine 10/10 1143 days 5%
David Aylmore 9/10 1172 days 5%
Saliha Hamici 10/10 1173 days 5%
Sebastian Torfs 10/10 1173 days 5%
Lochoe Mckinnon 10/10 1203 days 5%
Eric 10/10 1204 days 5%
Mia Tranthem 10/10 1204 days 5%
kael Matthews 10/10 1204 days 5%
Sophie Skinner 10/10 1204 days 5%
Eddie 10/10 1357 days 4%
hazel woodhead 10/10 1357 days 4%
Tom Smithwick 10/10 1386 days 4%
Matt 10/10 1387 days 4%
John Sivigny 10/10 1387 days 4%
Lizzie Watts 10/10 1387 days 4%
Jonathan Clay 10/10 1418 days 4%
Marita O'Brien 10/10 1418 days 4%
Jan 9/10 1418 days 4%
Henry 10/10 1418 days 4%
Andy Barlow 10/10 1446 days 4%
kath combes 10/10 1446 days 4%
Roz Lobo 10/10 1446 days 4%
Jorg 10/10 1446 days 4%
Georgia 10/10 1446 days 4%
Joss, Georgia and Stef 10/10 1446 days 4%
petra 10/10 1476 days 4%
Richard Janes 10/10 1476 days 4%
Kristel & Tim 10/10 1476 days 4%
Felix Maliers 10/10 1477 days 4%
Greg and Syd 9/10 1507 days 4%
Rebecca Grace 10/10 1507 days 4%
Julia 9/10 1508 days 4%
Jonas Himpe 10/10 1537 days 4%
kohn stephan 10/10 1537 days 4%
Tim Leary 10/10 1537 days 4%
Tom Coul 10/10 1537 days 4%
Kim Verplancke 10/10 1537 days 4%
Chris Scrimshaw 10/10 1537 days 4%
Martina & Trev from Switzerland 10/10 1538 days 4%
Wendy and Vincent 10/10 1568 days 4%
James N 10/10 1660 days 4%
Gert van der Lugt 10/10 1782 days 4%
Stefan Giese 10/10 1782 days 4%
Hendrik Pschichholtz 10/10 1782 days 4%
Ray Verbeek 10/10 1782 days 4%
Andreas Herzog 10/10 1810 days 4%
Tracy Frauzel 10/10 1819 days 2%
michel labrecque 10/10 1841 days 4%
Garrett South 10/10 1841 days 4%
Sofia Vadman 10/10 1841 days 4%
Patricia Pharr-Snyder 10/10 1902 days 3%
Gabriel Wappler 10/10 2116 days 3%
Phillip M 10/10 2147 days 3%
Sarah Considine 10/10 2147 days 3%
Jack + Jade Hughes 10/10 2147 days 3%
Gerry Fijal 10/10 2147 days 3%
Melanie Keller 10/10 2147 days 3%
Jasper S 10/10 2176 days 3%
Linc 9/10 2207 days 3%
Rose Gutekunst 10/10 2207 days 3%
Marcel Janser 10/10 2207 days 3%
Vicki Janes 10/10 2238 days 3%
Ky Phillips 10/10 2300 days 3%
Taylor Wirth 10/10 2329 days 3%
Emma Gaylord 10/10 2329 days 3%
Jean Capron 10/10 2482 days 2%
Barbara 10/10 2482 days 2%
Jan Menzies 10/10 2482 days 2%
Jenny Mulholland 10/10 2513 days 2%
Charles norris 10/10 2513 days 2%
Lee & Sarah . 10/10 2513 days 2%
Abi Fielder 10/10 2541 days 2%
janny van der Burg 10/10 2541 days 2%
HANNAH BROOKSBANK 10/10 2541 days 2%
Simon Betschart 10/10 2541 days 2%
Yannick 10/10 2572 days 2%
MikeHoncho 10/10 2572 days 2%
Dave Ruijter 10/10 2572 days 2%
Alison Gemrany 10/10 2572 days 2%
AndyDavies 10/10 2603 days 2%
Priscilla 10/10 2633 days 2%
Sarah Jones 10/10 2633 days 2%
Erwin & Dani Matijsen 10/10 2633 days 2%
Alanna Y 10/10 2633 days 2%
Sal Hubert 10/10 2664 days 1%
Mia & Martin 10/10 2664 days 2%
Adam Miller 10/10 2694 days 2%
Joe Kuchman 10/10 2818 days 2%
Ryan & Rita Pierce 10/10 2848 days 2%
Janet Mook 9/10 2879 days 1%
Andy/Robyn Long 10/10 2879 days 1%
Jon Jamie 10/10 2879 days 1%
Erica Bradford 10/10 2907 days 1%
Paulo Dias 10/10 2907 days 1%
Jana Zanetto 10/10 2907 days 1%
David Haines-Hanham 10/10 2913 days 1%
Sally Haines 10/10 2913 days 1%
Katie 10/10 2938 days 1%
Stefanie Summer 10/10 2938 days 1%
seb_lag 9/10 2938 days 1%
Geo 10/10 2938 days 1%
Ineke & Wouter 8/10 2938 days 1%
sally haines-hanham 10/10 2938 days 1%
Marc Greeve 10/10 2946 days 1%
Paul Eaves 10/10 2999 days 1%
Anna Barber 9/10 2999 days 1%
Adam 10/10 3030 days 1%
Rob & Margot 10/10 3060 days 1%
Vikki reeves 10/10 3060 days 1%
Gerard McAuley 10/10 3060 days 1%
Stephanie 10/10 3064 days 1%
Ben Z 10/10 3213 days 1%
GLD 10/10 3244 days 1%
Colin Bond 10/10 3244 days 1%
HandH 10/10 3244 days 1%
Chris Ledwig 10/10 3244 days 1%
joepolog40 10/10 3244 days 1%
titougreg29 10/10 3272 days 1%
Brian 10/10 3272 days 1%
Wibo de Vries 10/10 3272 days 1%
Katie&Mike U 10/10 3272 days 1%
Peg Wooten 10/10 3303 days 1%
Marc Hoskins 10/10 3303 days 1%
Velvette 10/10 3303 days 1%
Stephanie Zellerer 10/10 3303 days 1%
Tina Gehmecker 10/10 3303 days 1%
paulcallanan 10/10 3303 days 1%
Tom Batty 10/10 3303 days 1%
Dave Worthington 10/10 3303 days 1%
Jodie Cronk 10/10 3303 days 1%
Jen&Digs M 10/10 3334 days 1%
Paul Leow 10/10 3334 days 1%
phnz 10/10 3334 days 1%
medellia371 10/10 3364 days 1%
Ihopkin 10/10 3364 days 1%
dan_robyn 10/10 3395 days 0%
erinlongtrail 10/10 3395 days 0%
sal 10/10 3425 days 0%
Horius 10/10 3425 days 0%
kayburns 9/10 3425 days 0%
Funkytiptoe 10/10 3425 days 0%
Christian Fell 10/10 3425 days 0%
aloedriscoll 10/10 3548 days 0%
h schmidt 10/10 3578 days 0%
jensmitty 10/10 3578 days 0%
aubreyfalk 10/10 3578 days 0%
WDC_Oxfam2012 10/10 3578 days 0%
doublesessions 9/10 3609 days 0%
tdean 10/10 3609 days 0%
Ewan 10/10 3609 days 0%
StefanKatie 10/10 3638 days 0%
François 10/10 3669 days 1%
essy 10/10 3700 days 1%
Bkeeping 10/10 3700 days 1%
mandaroni 10/10 3730 days 1%
cioffil 10/10 3761 days 1%
jackmason 10/10 3761 days 1%
greanman 10/10 3761 days 1%
jimmynew7121 10/10 3791 days 1%
lmharwood 10/10 3822 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 PiwiWiwi Campervans experience has plenty of reviews and does not meet the criteria for any adjustment.

Recent Reviews Adjustment

-1.54% 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.

What constitutes a recent review is based on the how old it is, what type of experience it is applied to and and what time of year it currently is. Due to the seasonal nature of many businesses, what is considered recent is dynamically adjusted throughout the year.

There may be an adjustment if this experience hasn't received enough reviews within the last 46 days. The PiwiWiwi Campervans experience has 3 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 200 days. Due to the seasonal nature of many businesses, this adjustment is applied dynamically throughout the year.

The PiwiWiwi Campervans experience has been adjusted for 2 days. Adjustments are according to the following table.

Days Adjustment
0 -0.00%
1 -0.02%
2 -0.04%
3 -0.06%
4 -0.08%
5 -0.10%

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.