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

225 Valid Reviews

The PiwiWiwi Campervans experience has a total of 230 reviews. There are 225 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 225 valid reviews:

Rating Count Percentage
10/10 208
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%

99.16% Average

The raw data average (mean) for all the PiwiWiwi Campervans valid reviews is 99.16% and is based on 225 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 225 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

99.03%

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
Antonia 10/10 44 days 99.69 100%
Tess 10/10 105 days 98.25 99%
Sam 10/10 105 days 98.25 99%
Sarah Creegan 10/10 166 days 95.63 96%
Angela Gray 10/10 166 days 95.63 96%
Matt Linton 10/10 166 days 95.63 96%
Ashleigh Lim 10/10 166 days 95.63 96%
Hartmut 10/10 166 days 95.63 96%
Kevin Merrill 10/10 195 days 93.97 94%
Mark Slaski 10/10 195 days 93.97 94%
Daisy Baish 10/10 195 days 93.97 94%
Emma Hamasaki 9/10 195 days 93.97 94%
Katie OBlock 10/10 195 days 93.97 94%
Markus Salomon 10/10 195 days 93.97 94%
Chris Felicetta 10/10 226 days 91.91 92%
Janet 10/10 226 days 91.91 92%
Phillip H 10/10 226 days 91.91 92%
Tia 10/10 226 days 91.91 92%
Kilolimabravo 10/10 226 days 91.91 92%
Nichole Braase 10/10 226 days 91.91 92%
Sally and Davy 10/10 257 days 89.53 90%
M. Nederveen 9/10 257 days 89.53 90%
Melanie 10/10 257 days 89.53 90%
Katie Cooper 10/10 257 days 89.53 90%
Ed & Catherine 9/10 257 days 89.53 90%
Katherine Paschall 10/10 287 days 86.95 87%
Sandra 10/10 287 days 86.95 87%
Rebecca Sutherland 10/10 287 days 86.95 87%
Olga and Evan Patronik 10/10 287 days 86.95 87%
Lore & Sébastien 10/10 287 days 86.95 87%
Scott and Zef 10/10 287 days 86.95 87%
Sophie Van Tol 10/10 318 days 83.98 84%
Maire Peate 10/10 318 days 83.98 84%
Avalon Ridler 10/10 318 days 83.98 84%
Sarah 10/10 318 days 83.98 84%
Jonneke van de Kamp 10/10 318 days 83.98 84%
jess c 10/10 318 days 83.98 84%
John Sivigny 10/10 348 days 80.81 81%
Maureen Clarke 10/10 348 days 80.81 81%
Stephen Hall 10/10 348 days 80.81 81%
Darryl Neo 10/10 471 days 64.85 65%
Harry Newton 10/10 471 days 64.85 65%
Brooke 10/10 471 days 64.85 65%
Felicia and Andy 10/10 501 days 60.23 60%
LB & Michael 10/10 501 days 60.23 60%
Päivi and John Anderson 8/10 501 days 57.21 57%
Matt Linton 10/10 532 days 55.15 55%
Sandy Curry 9/10 532 days 55.15 55%
Scott Browning 10/10 532 days 55.15 55%
Matthijs, Anouk en Mika Smit 10/10 532 days 55.15 55%
Maija Morgenweck 10/10 532 days 55.15 55%
JPliska 10/10 560 days 50.36 50%
Henry Meehan 10/10 560 days 50.36 50%
Zoran 10/10 560 days 50.36 50%
Svea Brömel 10/10 560 days 50.36 50%
Martin and Nikola 10/10 560 days 50.36 50%
John and Barbara 10/10 591 days 45.25 45%
Phillip Hartin 10/10 591 days 45.25 45%
Andrew Borch 10/10 591 days 45.25 45%
Niek and Anne (The Netherlands) 10/10 591 days 45.25 45%
Joash Picard 10/10 622 days 40.45 40%
Carrie 10/10 622 days 40.45 40%
Zoe 10/10 622 days 40.45 40%
Kara & Joash 10/10 622 days 40.45 40%
Marian van Voorn 9/10 622 days 40.45 40%
Amandine 10/10 622 days 40.45 40%
David Aylmore 9/10 652 days 36.1 36%
Saliha Hamici 10/10 652 days 36.1 36%
Sebastian Torfs 10/10 652 days 36.1 36%
Lochoe Mckinnon 10/10 683 days 31.9 32%
Eric 10/10 683 days 31.9 32%
Mia Tranthem 10/10 683 days 31.9 32%
kael Matthews 10/10 683 days 31.9 32%
Sophie Skinner 10/10 683 days 31.9 32%
Eddie 10/10 836 days 15.63 15%
hazel woodhead 10/10 836 days 15.63 15%
Tom Smithwick 10/10 866 days 13.31 13%
Matt 10/10 866 days 13.31 13%
John Sivigny 10/10 866 days 13.31 13%
Lizzie Watts 10/10 866 days 13.31 13%
Jonathan Clay 10/10 897 days 11.21 11%
Marita O'Brien 10/10 897 days 11.21 11%
Jan 9/10 897 days 11.21 11%
Henry 10/10 897 days 11.21 11%
Andy Barlow 10/10 925 days 9.58 9%
kath combes 10/10 925 days 9.58 9%
Roz Lobo 10/10 925 days 9.58 9%
Jorg 10/10 925 days 9.58 9%
Georgia 10/10 925 days 9.58 9%
Joss, Georgia and Stef 10/10 925 days 9.58 9%
petra 10/10 956 days 8.06 7%
Richard Janes 10/10 956 days 8.06 7%
Kristel & Tim 10/10 956 days 8.06 7%
Felix Maliers 10/10 956 days 8.06 7%
Greg and Syd 9/10 987 days 6.85 6%
Rebecca Grace 10/10 987 days 6.85 6%
Julia 9/10 987 days 6.85 6%
Jonas Himpe 10/10 1017 days 5.96 5%
kohn stephan 10/10 1017 days 5.96 5%
Tim Leary 10/10 1017 days 5.96 5%
Tom Coul 10/10 1017 days 5.96 5%
Kim Verplancke 10/10 1017 days 5.96 5%
Chris Scrimshaw 10/10 1017 days 5.96 5%
Martina & Trev from Switzerland 10/10 1017 days 5.96 5%
Wendy and Vincent 10/10 1048 days 5.35 5%
James N 10/10 1140 days 4.91 4%
Gert van der Lugt 10/10 1262 days 4.67 4%
Stefan Giese 10/10 1262 days 4.67 4%
Hendrik Pschichholtz 10/10 1262 days 4.67 4%
Ray Verbeek 10/10 1262 days 4.67 4%
Andreas Herzog 10/10 1290 days 4.62 4%
Tracy Frauzel 10/10 1298 days true 4.6 4%
michel labrecque 10/10 1321 days 4.56 4%
Garrett South 10/10 1321 days 4.56 4%
Sofia Vadman 10/10 1321 days 4.56 4%
Patricia Pharr-Snyder 10/10 1382 days 4.44 4%
Gabriel Wappler 10/10 1596 days 4.02 3%
Phillip M 10/10 1627 days 3.96 3%
Sarah Considine 10/10 1627 days 3.96 3%
Jack + Jade Hughes 10/10 1627 days 3.96 3%
Gerry Fijal 10/10 1627 days 3.96 3%
Melanie Keller 10/10 1627 days 3.96 3%
Jasper S 10/10 1656 days 3.9 3%
Linc 9/10 1687 days 3.84 3%
Rose Gutekunst 10/10 1687 days 3.84 3%
Marcel Janser 10/10 1687 days 3.84 3%
Vicki Janes 10/10 1718 days 3.78 3%
Ky Phillips 10/10 1779 days 3.66 3%
Taylor Wirth 10/10 1809 days 3.6 3%
Emma Gaylord 10/10 1809 days 3.6 3%
Jean Capron 10/10 1962 days 3.3 3%
Barbara 10/10 1962 days 3.3 3%
Jan Menzies 10/10 1962 days 3.3 3%
Jenny Mulholland 10/10 1993 days 3.24 3%
Charles norris 10/10 1993 days 3.24 3%
Lee & Sarah . 10/10 1993 days 3.24 3%
Abi Fielder 10/10 2021 days 3.19 3%
janny van der Burg 10/10 2021 days 3.19 3%
HANNAH BROOKSBANK 10/10 2021 days 3.19 3%
Simon Betschart 10/10 2021 days 3.19 3%
Yannick 10/10 2052 days 3.13 2%
MikeHoncho 10/10 2052 days 3.13 2%
Dave Ruijter 10/10 2052 days 3.13 2%
Alison Gemrany 10/10 2052 days 3.13 2%
AndyDavies 10/10 2083 days 3.07 2%
Priscilla 10/10 2113 days 3.01 2%
Sarah Jones 10/10 2113 days 3.01 2%
Erwin & Dani Matijsen 10/10 2113 days 3.01 2%
Alanna Y 10/10 2113 days 3.01 2%
Sal Hubert 10/10 2143 days true 2.95 2%
Mia & Martin 10/10 2144 days 2.95 2%
Adam Miller 10/10 2174 days 2.89 2%
Joe Kuchman 10/10 2297 days 2.65 2%
Ryan & Rita Pierce 10/10 2327 days 2.59 2%
Janet Mook 9/10 2358 days 2.53 2%
Andy/Robyn Long 10/10 2358 days 2.53 2%
Jon Jamie 10/10 2358 days 2.53 2%
Erica Bradford 10/10 2386 days 2.47 2%
Paulo Dias 10/10 2386 days 2.47 2%
Jana Zanetto 10/10 2386 days 2.47 2%
David Haines-Hanham 10/10 2392 days true 2.46 2%
Sally Haines 10/10 2392 days true 2.46 2%
Katie 10/10 2417 days 2.41 2%
Stefanie Summer 10/10 2417 days 2.41 2%
seb_lag 9/10 2417 days 2.41 2%
Geo 10/10 2417 days 2.41 2%
Ineke & Wouter 8/10 2417 days 2.29 2%
sally haines-hanham 10/10 2417 days 2.41 2%
Marc Greeve 10/10 2425 days true 2.4 2%
Paul Eaves 10/10 2478 days 2.29 2%
Anna Barber 9/10 2478 days 2.29 2%
Adam 10/10 2509 days 2.23 2%
Rob & Margot 10/10 2539 days 2.17 2%
Vikki reeves 10/10 2539 days 2.17 2%
Gerard McAuley 10/10 2539 days 2.17 2%
Stephanie 10/10 2543 days true 2.17 1%
Ben Z 10/10 2692 days 1.87 1%
GLD 10/10 2723 days 1.81 1%
Colin Bond 10/10 2723 days 1.81 1%
HandH 10/10 2723 days 1.81 1%
Chris Ledwig 10/10 2723 days 1.81 1%
joepolog40 10/10 2723 days 1.81 1%
titougreg29 10/10 2751 days 1.76 1%
Brian 10/10 2751 days 1.76 1%
Wibo de Vries 10/10 2751 days 1.76 1%
Katie&Mike U 10/10 2751 days 1.76 1%
Peg Wooten 10/10 2782 days 1.7 1%
Marc Hoskins 10/10 2782 days 1.7 1%
Velvette 10/10 2782 days 1.7 1%
Stephanie Zellerer 10/10 2782 days 1.7 1%
Tina Gehmecker 10/10 2782 days 1.7 1%
paulcallanan 10/10 2782 days 1.7 1%
Tom Batty 10/10 2782 days 1.7 1%
Dave Worthington 10/10 2782 days 1.7 1%
Jodie Cronk 10/10 2782 days 1.7 1%
Jen&Digs M 10/10 2813 days 1.64 1%
Paul Leow 10/10 2813 days 1.64 1%
phnz 10/10 2813 days 1.64 1%
medellia371 10/10 2843 days 1.58 1%
Ihopkin 10/10 2843 days 1.58 1%
dan_robyn 10/10 2874 days 1.52 1%
erinlongtrail 10/10 2874 days 1.52 1%
sal 10/10 2904 days 1.46 1%
Horius 10/10 2904 days 1.46 1%
kayburns 9/10 2904 days 1.46 1%
Funkytiptoe 10/10 2904 days 1.46 1%
Christian Fell 10/10 2904 days 1.46 1%
aloedriscoll 10/10 3027 days 1.22 1%
h schmidt 10/10 3057 days 1.16 0%
jensmitty 10/10 3057 days 1.16 0%
aubreyfalk 10/10 3057 days 1.16 0%
WDC_Oxfam2012 10/10 3057 days 1.16 0%
doublesessions 9/10 3088 days 1.1 0%
tdean 10/10 3088 days 1.1 0%
Ewan 10/10 3088 days 1.1 0%
StefanKatie 10/10 3117 days 1.04 0%
François 10/10 3148 days 0.98 0%
essy 10/10 3179 days 0.92 0%
Bkeeping 10/10 3179 days 0.92 0%
mandaroni 10/10 3209 days 0.86 0%
cioffil 10/10 3240 days 0.8 0%
jackmason 10/10 3240 days 0.8 0%
greanman 10/10 3240 days 0.8 0%
jimmynew7121 10/10 3270 days 0.74 0%
lmharwood 10/10 3301 days 0.68 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

-0.77% 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.

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 114 days. The PiwiWiwi Campervans experience has 4 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 9 days. Adjustments are according to the following table.

Days Adjustment
6 -0.07%
7 -0.08%
8 -0.09%
9 -0.10%
10 -0.11%
11 -0.13%
12 -0.14%

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.