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

222 Valid Reviews

The PiwiWiwi Campervans experience has a total of 227 reviews. There are 222 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 222 valid reviews:

Rating Count Percentage
10/10 205
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 222 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 222 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

98.96%

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 96 days 98.54 100%
Angela Gray 10/10 96 days 98.54 100%
Matt Linton 10/10 96 days 98.54 100%
Ashleigh Lim 10/10 96 days 98.54 100%
Hartmut 10/10 96 days 98.54 100%
Kevin Merrill 10/10 125 days 97.52 99%
Mark Slaski 10/10 125 days 97.52 99%
Daisy Baish 10/10 125 days 97.52 99%
Emma Hamasaki 9/10 125 days 97.52 99%
Katie OBlock 10/10 125 days 97.52 99%
Markus Salomon 10/10 125 days 97.52 99%
Chris Felicetta 10/10 156 days 96.14 98%
Janet 10/10 156 days 96.14 98%
Phillip H 10/10 156 days 96.14 98%
Tia 10/10 156 days 96.14 98%
Kilolimabravo 10/10 156 days 96.14 98%
Nichole Braase 10/10 156 days 96.14 98%
Sally and Davy 10/10 187 days 94.46 96%
M. Nederveen 9/10 187 days 94.46 96%
Melanie 10/10 187 days 94.46 96%
Katie Cooper 10/10 187 days 94.46 96%
Ed & Catherine 9/10 187 days 94.46 96%
Katherine Paschall 10/10 217 days 92.54 94%
Sandra 10/10 217 days 92.54 94%
Rebecca Sutherland 10/10 217 days 92.54 94%
Olga and Evan Patronik 10/10 217 days 92.54 94%
Lore & Sébastien 10/10 217 days 92.54 94%
Scott and Zef 10/10 217 days 92.54 94%
Sophie Van Tol 10/10 248 days 90.25 92%
Maire Peate 10/10 248 days 90.25 92%
Avalon Ridler 10/10 248 days 90.25 92%
Sarah 10/10 248 days 90.25 92%
Jonneke van de Kamp 10/10 248 days 90.25 92%
jess c 10/10 248 days 90.25 92%
John Sivigny 10/10 278 days 87.75 89%
Maureen Clarke 10/10 278 days 87.75 89%
Stephen Hall 10/10 278 days 87.75 89%
Darryl Neo 10/10 401 days 74.52 75%
Harry Newton 10/10 401 days 74.52 75%
Brooke 10/10 401 days 74.52 75%
Felicia and Andy 10/10 431 days 70.56 71%
LB & Michael 10/10 431 days 70.56 71%
Päivi and John Anderson 8/10 431 days 67.04 68%
Matt Linton 10/10 462 days 66.18 67%
Sandy Curry 9/10 462 days 66.18 67%
Scott Browning 10/10 462 days 66.18 67%
Matthijs, Anouk en Mika Smit 10/10 462 days 66.18 67%
Maija Morgenweck 10/10 462 days 66.18 67%
JPliska 10/10 490 days 61.95 63%
Henry Meehan 10/10 490 days 61.95 63%
Zoran 10/10 490 days 61.95 63%
Svea Brömel 10/10 490 days 61.95 63%
Martin and Nikola 10/10 490 days 61.95 63%
John and Barbara 10/10 521 days 56.99 57%
Phillip Hartin 10/10 521 days 56.99 57%
Andrew Borch 10/10 521 days 56.99 57%
Niek and Anne (The Netherlands) 10/10 521 days 56.99 57%
Joash Picard 10/10 552 days 51.72 52%
Carrie 10/10 552 days 51.72 52%
Zoe 10/10 552 days 51.72 52%
Kara & Joash 10/10 552 days 51.72 52%
Marian van Voorn 9/10 552 days 51.72 52%
Amandine 10/10 552 days 51.72 52%
David Aylmore 9/10 582 days 46.7 47%
Saliha Hamici 10/10 582 days 46.7 47%
Sebastian Torfs 10/10 582 days 46.7 47%
Lochoe Mckinnon 10/10 613 days 41.81 42%
Eric 10/10 613 days 41.81 42%
Mia Tranthem 10/10 613 days 41.81 42%
kael Matthews 10/10 613 days 41.81 42%
Sophie Skinner 10/10 613 days 41.81 42%
Eddie 10/10 766 days 22.15 22%
hazel woodhead 10/10 766 days 22.15 22%
Tom Smithwick 10/10 796 days 19.17 19%
Matt 10/10 796 days 19.17 19%
John Sivigny 10/10 796 days 19.17 19%
Lizzie Watts 10/10 796 days 19.17 19%
Jonathan Clay 10/10 827 days 16.38 16%
Marita O'Brien 10/10 827 days 16.38 16%
Jan 9/10 827 days 16.38 16%
Henry 10/10 827 days 16.38 16%
Andy Barlow 10/10 855 days 14.13 14%
kath combes 10/10 855 days 14.13 14%
Roz Lobo 10/10 855 days 14.13 14%
Jorg 10/10 855 days 14.13 14%
Georgia 10/10 855 days 14.13 14%
Joss, Georgia and Stef 10/10 855 days 14.13 14%
petra 10/10 886 days 11.92 11%
Richard Janes 10/10 886 days 11.92 11%
Kristel & Tim 10/10 886 days 11.92 11%
Felix Maliers 10/10 886 days 11.92 11%
Greg and Syd 9/10 917 days 10.02 9%
Rebecca Grace 10/10 917 days 10.02 9%
Julia 9/10 917 days 10.02 9%
Jonas Himpe 10/10 947 days 8.47 8%
kohn stephan 10/10 947 days 8.47 8%
Tim Leary 10/10 947 days 8.47 8%
Tom Coul 10/10 947 days 8.47 8%
Kim Verplancke 10/10 947 days 8.47 8%
Chris Scrimshaw 10/10 947 days 8.47 8%
Martina & Trev from Switzerland 10/10 947 days 8.47 8%
Wendy and Vincent 10/10 978 days 7.17 6%
James N 10/10 1070 days 5.1 4%
Gert van der Lugt 10/10 1192 days 4.81 4%
Stefan Giese 10/10 1192 days 4.81 4%
Hendrik Pschichholtz 10/10 1192 days 4.81 4%
Ray Verbeek 10/10 1192 days 4.81 4%
Andreas Herzog 10/10 1220 days 4.76 4%
Tracy Frauzel 10/10 1228 days true 4.74 4%
michel labrecque 10/10 1251 days 4.69 4%
Garrett South 10/10 1251 days 4.69 4%
Sofia Vadman 10/10 1251 days 4.69 4%
Patricia Pharr-Snyder 10/10 1312 days 4.58 4%
Gabriel Wappler 10/10 1526 days 4.16 3%
Phillip M 10/10 1557 days 4.1 3%
Sarah Considine 10/10 1557 days 4.1 3%
Jack + Jade Hughes 10/10 1557 days 4.1 3%
Gerry Fijal 10/10 1557 days 4.1 3%
Melanie Keller 10/10 1557 days 4.1 3%
Jasper S 10/10 1586 days 4.04 3%
Linc 9/10 1617 days 3.98 3%
Rose Gutekunst 10/10 1617 days 3.98 3%
Marcel Janser 10/10 1617 days 3.98 3%
Vicki Janes 10/10 1648 days 3.92 3%
Ky Phillips 10/10 1709 days 3.8 3%
Taylor Wirth 10/10 1739 days 3.74 3%
Emma Gaylord 10/10 1739 days 3.74 3%
Jean Capron 10/10 1892 days 3.44 3%
Barbara 10/10 1892 days 3.44 3%
Jan Menzies 10/10 1892 days 3.44 3%
Jenny Mulholland 10/10 1923 days 3.38 3%
Charles norris 10/10 1923 days 3.38 3%
Lee & Sarah . 10/10 1923 days 3.38 3%
Abi Fielder 10/10 1951 days 3.32 3%
janny van der Burg 10/10 1951 days 3.32 3%
HANNAH BROOKSBANK 10/10 1951 days 3.32 3%
Simon Betschart 10/10 1951 days 3.32 3%
Yannick 10/10 1982 days 3.26 3%
MikeHoncho 10/10 1982 days 3.26 3%
Dave Ruijter 10/10 1982 days 3.26 3%
Alison Gemrany 10/10 1982 days 3.26 3%
AndyDavies 10/10 2013 days 3.2 2%
Priscilla 10/10 2043 days 3.14 2%
Sarah Jones 10/10 2043 days 3.14 2%
Erwin & Dani Matijsen 10/10 2043 days 3.14 2%
Alanna Y 10/10 2043 days 3.14 2%
Sal Hubert 10/10 2073 days true 3.09 2%
Mia & Martin 10/10 2074 days 3.08 2%
Adam Miller 10/10 2104 days 3.03 2%
Joe Kuchman 10/10 2227 days 2.78 2%
Ryan & Rita Pierce 10/10 2257 days 2.73 2%
Janet Mook 9/10 2288 days 2.67 2%
Andy/Robyn Long 10/10 2288 days 2.67 2%
Jon Jamie 10/10 2288 days 2.67 2%
Erica Bradford 10/10 2316 days 2.61 2%
Paulo Dias 10/10 2316 days 2.61 2%
Jana Zanetto 10/10 2316 days 2.61 2%
David Haines-Hanham 10/10 2322 days true 2.6 2%
Sally Haines 10/10 2322 days true 2.6 2%
Katie 10/10 2347 days 2.55 2%
Stefanie Summer 10/10 2347 days 2.55 2%
seb_lag 9/10 2347 days 2.55 2%
Geo 10/10 2347 days 2.55 2%
Ineke & Wouter 8/10 2347 days 2.42 2%
sally haines-hanham 10/10 2347 days 2.55 2%
Marc Greeve 10/10 2355 days true 2.53 2%
Paul Eaves 10/10 2408 days 2.43 2%
Anna Barber 9/10 2408 days 2.43 2%
Adam 10/10 2439 days 2.37 2%
Rob & Margot 10/10 2469 days 2.31 2%
Vikki reeves 10/10 2469 days 2.31 2%
Gerard McAuley 10/10 2469 days 2.31 2%
Stephanie 10/10 2473 days true 2.3 2%
Ben Z 10/10 2622 days 2.01 1%
GLD 10/10 2653 days 1.95 1%
Colin Bond 10/10 2653 days 1.95 1%
HandH 10/10 2653 days 1.95 1%
Chris Ledwig 10/10 2653 days 1.95 1%
joepolog40 10/10 2653 days 1.95 1%
titougreg29 10/10 2681 days 1.9 1%
Brian 10/10 2681 days 1.9 1%
Wibo de Vries 10/10 2681 days 1.9 1%
Katie&Mike U 10/10 2681 days 1.9 1%
Peg Wooten 10/10 2712 days 1.84 1%
Marc Hoskins 10/10 2712 days 1.84 1%
Velvette 10/10 2712 days 1.84 1%
Stephanie Zellerer 10/10 2712 days 1.84 1%
Tina Gehmecker 10/10 2712 days 1.84 1%
paulcallanan 10/10 2712 days 1.84 1%
Tom Batty 10/10 2712 days 1.84 1%
Dave Worthington 10/10 2712 days 1.84 1%
Jodie Cronk 10/10 2712 days 1.84 1%
Jen&Digs M 10/10 2743 days 1.77 1%
Paul Leow 10/10 2743 days 1.77 1%
phnz 10/10 2743 days 1.77 1%
medellia371 10/10 2773 days 1.72 1%
Ihopkin 10/10 2773 days 1.72 1%
dan_robyn 10/10 2804 days 1.66 1%
erinlongtrail 10/10 2804 days 1.66 1%
sal 10/10 2834 days 1.6 1%
Horius 10/10 2834 days 1.6 1%
kayburns 9/10 2834 days 1.6 1%
Funkytiptoe 10/10 2834 days 1.6 1%
Christian Fell 10/10 2834 days 1.6 1%
aloedriscoll 10/10 2957 days 1.36 1%
h schmidt 10/10 2987 days 1.3 0%
jensmitty 10/10 2987 days 1.3 0%
aubreyfalk 10/10 2987 days 1.3 0%
WDC_Oxfam2012 10/10 2987 days 1.3 0%
doublesessions 9/10 3018 days 1.24 0%
tdean 10/10 3018 days 1.24 0%
Ewan 10/10 3018 days 1.24 0%
StefanKatie 10/10 3047 days 1.18 0%
François 10/10 3078 days 1.12 0%
essy 10/10 3109 days 1.06 0%
Bkeeping 10/10 3109 days 1.06 0%
mandaroni 10/10 3139 days 1.0 0%
cioffil 10/10 3170 days 0.94 0%
jackmason 10/10 3170 days 0.94 0%
greanman 10/10 3170 days 0.94 0%
jimmynew7121 10/10 3200 days 0.88 0%
lmharwood 10/10 3231 days 0.82 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

-0.43% Adjustment

There may be an adjustment if this experience hasn't received any reviews within the last 110 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 36 days. Adjustments are according to the following table.

Days Adjustment
33 -0.39%
34 -0.40%
35 -0.41%
36 -0.43%
37 -0.44%
38 -0.45%
39 -0.46%

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.