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

221 Valid Reviews

The PiwiWiwi Campervans experience has a total of 226 reviews. There are 221 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 221 valid reviews:

Rating Count Percentage
10/10 204
92%
9/10 15
7%
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 221 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 221 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

98.94%

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
Sarah Creegan 10/10 40 days 99.75 100%
Angela Gray 10/10 40 days 99.75 100%
Matt Linton 10/10 40 days 99.75 100%
Ashleigh Lim 10/10 40 days 99.75 100%
Kevin Merrill 10/10 69 days 99.25 99%
Mark Slaski 10/10 69 days 99.25 99%
Daisy Baish 10/10 69 days 99.25 99%
Emma Hamasaki 9/10 69 days 99.25 99%
Katie OBlock 10/10 69 days 99.25 99%
Markus Salomon 10/10 69 days 99.25 99%
Chris Felicetta 10/10 100 days 98.42 99%
Janet 10/10 100 days 98.42 99%
Phillip H 10/10 100 days 98.42 99%
Tia 10/10 100 days 98.42 99%
Kilolimabravo 10/10 100 days 98.42 99%
Nichole Braase 10/10 100 days 98.42 99%
Sally and Davy 10/10 131 days 97.28 98%
M. Nederveen 9/10 131 days 97.28 98%
Melanie 10/10 131 days 97.28 98%
Katie Cooper 10/10 131 days 97.28 98%
Ed & Catherine 9/10 131 days 97.28 98%
Katherine Paschall 10/10 161 days 95.89 96%
Sandra 10/10 161 days 95.89 96%
Rebecca Sutherland 10/10 161 days 95.89 96%
Olga and Evan Patronik 10/10 161 days 95.89 96%
Lore & Sébastien 10/10 161 days 95.89 96%
Scott and Zef 10/10 161 days 95.89 96%
Sophie Van Tol 10/10 192 days 94.16 94%
Maire Peate 10/10 192 days 94.16 94%
Avalon Ridler 10/10 192 days 94.16 94%
Sarah 10/10 192 days 94.16 94%
Jonneke van de Kamp 10/10 192 days 94.16 94%
jess c 10/10 192 days 94.16 94%
John Sivigny 10/10 222 days 92.19 92%
Maureen Clarke 10/10 222 days 92.19 92%
Stephen Hall 10/10 222 days 92.19 92%
Darryl Neo 10/10 345 days 81.14 81%
Harry Newton 10/10 345 days 81.14 81%
Brooke 10/10 345 days 81.14 81%
Felicia and Andy 10/10 375 days 77.72 78%
LB & Michael 10/10 375 days 77.72 78%
Päivi and John Anderson 8/10 375 days 73.83 74%
Matt Linton 10/10 406 days 73.88 74%
Sandy Curry 9/10 406 days 73.88 74%
Scott Browning 10/10 406 days 73.88 74%
Matthijs, Anouk en Mika Smit 10/10 406 days 73.88 74%
Maija Morgenweck 10/10 406 days 73.88 74%
JPliska 10/10 434 days 70.15 70%
Henry Meehan 10/10 434 days 70.15 70%
Zoran 10/10 434 days 70.15 70%
Svea Brömel 10/10 434 days 70.15 70%
Martin and Nikola 10/10 434 days 70.15 70%
John and Barbara 10/10 465 days 65.74 66%
Phillip Hartin 10/10 465 days 65.74 66%
Andrew Borch 10/10 465 days 65.74 66%
Niek and Anne (The Netherlands) 10/10 465 days 65.74 66%
Joash Picard 10/10 496 days 61.02 61%
Carrie 10/10 496 days 61.02 61%
Zoe 10/10 496 days 61.02 61%
Kara & Joash 10/10 496 days 61.02 61%
Marian van Voorn 9/10 496 days 61.02 61%
Amandine 10/10 496 days 61.02 61%
David Aylmore 9/10 526 days 56.16 56%
Saliha Hamici 10/10 526 days 56.16 56%
Sebastian Torfs 10/10 526 days 56.16 56%
Lochoe Mckinnon 10/10 557 days 50.87 51%
Eric 10/10 557 days 50.87 51%
Mia Tranthem 10/10 557 days 50.87 51%
kael Matthews 10/10 557 days 50.87 51%
Sophie Skinner 10/10 557 days 50.87 51%
Eddie 10/10 710 days 28.49 28%
hazel woodhead 10/10 710 days 28.49 28%
Tom Smithwick 10/10 740 days 24.97 24%
Matt 10/10 740 days 24.97 24%
John Sivigny 10/10 740 days 24.97 24%
Lizzie Watts 10/10 740 days 24.97 24%
Jonathan Clay 10/10 771 days 21.63 21%
Marita O'Brien 10/10 771 days 21.63 21%
Jan 9/10 771 days 21.63 21%
Henry 10/10 771 days 21.63 21%
Andy Barlow 10/10 799 days 18.88 18%
kath combes 10/10 799 days 18.88 18%
Roz Lobo 10/10 799 days 18.88 18%
Jorg 10/10 799 days 18.88 18%
Georgia 10/10 799 days 18.88 18%
Joss, Georgia and Stef 10/10 799 days 18.88 18%
petra 10/10 830 days 16.13 15%
Richard Janes 10/10 830 days 16.13 15%
Kristel & Tim 10/10 830 days 16.13 15%
Felix Maliers 10/10 830 days 16.13 15%
Greg and Syd 9/10 861 days 13.68 13%
Rebecca Grace 10/10 861 days 13.68 13%
Julia 9/10 861 days 13.68 13%
Jonas Himpe 10/10 891 days 11.59 11%
kohn stephan 10/10 891 days 11.59 11%
Tim Leary 10/10 891 days 11.59 11%
Tom Coul 10/10 891 days 11.59 11%
Kim Verplancke 10/10 891 days 11.59 11%
Chris Scrimshaw 10/10 891 days 11.59 11%
Martina & Trev from Switzerland 10/10 891 days 11.59 11%
Wendy and Vincent 10/10 922 days 9.74 9%
James N 10/10 1014 days 6.04 5%
Gert van der Lugt 10/10 1136 days 4.92 4%
Stefan Giese 10/10 1136 days 4.92 4%
Hendrik Pschichholtz 10/10 1136 days 4.92 4%
Ray Verbeek 10/10 1136 days 4.92 4%
Andreas Herzog 10/10 1164 days 4.86 4%
Tracy Frauzel 10/10 1172 days true 4.85 4%
michel labrecque 10/10 1195 days 4.8 4%
Garrett South 10/10 1195 days 4.8 4%
Sofia Vadman 10/10 1195 days 4.8 4%
Patricia Pharr-Snyder 10/10 1256 days 4.68 4%
Gabriel Wappler 10/10 1470 days 4.27 3%
Phillip M 10/10 1501 days 4.21 3%
Sarah Considine 10/10 1501 days 4.21 3%
Jack + Jade Hughes 10/10 1501 days 4.21 3%
Gerry Fijal 10/10 1501 days 4.21 3%
Melanie Keller 10/10 1501 days 4.21 3%
Jasper S 10/10 1530 days 4.15 3%
Linc 9/10 1561 days 4.09 3%
Rose Gutekunst 10/10 1561 days 4.09 3%
Marcel Janser 10/10 1561 days 4.09 3%
Vicki Janes 10/10 1592 days 4.03 3%
Ky Phillips 10/10 1653 days 3.91 3%
Taylor Wirth 10/10 1683 days 3.85 3%
Emma Gaylord 10/10 1683 days 3.85 3%
Jean Capron 10/10 1836 days 3.55 3%
Barbara 10/10 1836 days 3.55 3%
Jan Menzies 10/10 1836 days 3.55 3%
Jenny Mulholland 10/10 1867 days 3.49 3%
Charles norris 10/10 1867 days 3.49 3%
Lee & Sarah . 10/10 1867 days 3.49 3%
Abi Fielder 10/10 1895 days 3.43 3%
janny van der Burg 10/10 1895 days 3.43 3%
HANNAH BROOKSBANK 10/10 1895 days 3.43 3%
Simon Betschart 10/10 1895 days 3.43 3%
Yannick 10/10 1926 days 3.37 2%
MikeHoncho 10/10 1926 days 3.37 2%
Dave Ruijter 10/10 1926 days 3.37 2%
Alison Gemrany 10/10 1926 days 3.37 2%
AndyDavies 10/10 1957 days 3.31 2%
Priscilla 10/10 1987 days 3.25 2%
Sarah Jones 10/10 1987 days 3.25 2%
Erwin & Dani Matijsen 10/10 1987 days 3.25 2%
Alanna Y 10/10 1987 days 3.25 2%
Sal Hubert 10/10 2017 days true 3.2 2%
Mia & Martin 10/10 2018 days 3.19 2%
Adam Miller 10/10 2048 days 3.14 2%
Joe Kuchman 10/10 2171 days 2.89 2%
Ryan & Rita Pierce 10/10 2201 days 2.84 2%
Janet Mook 9/10 2232 days 2.77 2%
Andy/Robyn Long 10/10 2232 days 2.77 2%
Jon Jamie 10/10 2232 days 2.77 2%
Erica Bradford 10/10 2260 days 2.72 2%
Paulo Dias 10/10 2260 days 2.72 2%
Jana Zanetto 10/10 2260 days 2.72 2%
David Haines-Hanham 10/10 2266 days true 2.71 2%
Sally Haines 10/10 2266 days true 2.71 2%
Katie 10/10 2291 days 2.66 2%
Stefanie Summer 10/10 2291 days 2.66 2%
seb_lag 9/10 2291 days 2.66 2%
Geo 10/10 2291 days 2.66 2%
Ineke & Wouter 8/10 2291 days 2.53 2%
sally haines-hanham 10/10 2291 days 2.66 2%
Marc Greeve 10/10 2299 days true 2.64 2%
Paul Eaves 10/10 2352 days 2.54 2%
Anna Barber 9/10 2352 days 2.54 2%
Adam 10/10 2383 days 2.48 2%
Rob & Margot 10/10 2413 days 2.42 2%
Vikki reeves 10/10 2413 days 2.42 2%
Gerard McAuley 10/10 2413 days 2.42 2%
Stephanie 10/10 2417 days true 2.41 2%
Ben Z 10/10 2566 days 2.12 1%
GLD 10/10 2597 days 2.06 1%
Colin Bond 10/10 2597 days 2.06 1%
HandH 10/10 2597 days 2.06 1%
Chris Ledwig 10/10 2597 days 2.06 1%
joepolog40 10/10 2597 days 2.06 1%
titougreg29 10/10 2625 days 2.01 1%
Brian 10/10 2625 days 2.01 1%
Wibo de Vries 10/10 2625 days 2.01 1%
Katie&Mike U 10/10 2625 days 2.01 1%
Peg Wooten 10/10 2656 days 1.95 1%
Marc Hoskins 10/10 2656 days 1.95 1%
Velvette 10/10 2656 days 1.95 1%
Stephanie Zellerer 10/10 2656 days 1.95 1%
Tina Gehmecker 10/10 2656 days 1.95 1%
paulcallanan 10/10 2656 days 1.95 1%
Tom Batty 10/10 2656 days 1.95 1%
Dave Worthington 10/10 2656 days 1.95 1%
Jodie Cronk 10/10 2656 days 1.95 1%
Jen&Digs M 10/10 2687 days 1.88 1%
Paul Leow 10/10 2687 days 1.88 1%
phnz 10/10 2687 days 1.88 1%
medellia371 10/10 2717 days 1.83 1%
Ihopkin 10/10 2717 days 1.83 1%
dan_robyn 10/10 2748 days 1.77 1%
erinlongtrail 10/10 2748 days 1.77 1%
sal 10/10 2778 days 1.71 1%
Horius 10/10 2778 days 1.71 1%
kayburns 9/10 2778 days 1.71 1%
Funkytiptoe 10/10 2778 days 1.71 1%
Christian Fell 10/10 2778 days 1.71 1%
aloedriscoll 10/10 2901 days 1.47 1%
h schmidt 10/10 2931 days 1.41 0%
jensmitty 10/10 2931 days 1.41 0%
aubreyfalk 10/10 2931 days 1.41 0%
WDC_Oxfam2012 10/10 2931 days 1.41 0%
doublesessions 9/10 2962 days 1.35 0%
tdean 10/10 2962 days 1.35 0%
Ewan 10/10 2962 days 1.35 0%
StefanKatie 10/10 2991 days 1.29 0%
François 10/10 3022 days 1.23 0%
essy 10/10 3053 days 1.17 0%
Bkeeping 10/10 3053 days 1.17 0%
mandaroni 10/10 3083 days 1.11 0%
cioffil 10/10 3114 days 1.05 0%
jackmason 10/10 3114 days 1.05 0%
greanman 10/10 3114 days 1.05 0%
jimmynew7121 10/10 3144 days 0.99 0%
lmharwood 10/10 3175 days 0.93 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

-0.11% Adjustment

There may be an adjustment if this experience hasn't received any reviews within the last 63 days. However the PiwiWiwi Campervans 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 PiwiWiwi Campervans experience has been adjusted for 6 days. Adjustments are according to the following table.

Days Adjustment
3 -0.05%
4 -0.07%
5 -0.09%
6 -0.11%
7 -0.12%
8 -0.14%
9 -0.16%

Final Ranking Score

99%

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.