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 New Zealand Frontiers.

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

New Zealand Frontiers

Valid Reviews

223 Valid Reviews

The New Zealand Frontiers experience has a total of 246 reviews. There are 223 valid reviews that are included when calculating the ranking score and 23 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 223 valid reviews:

Rating Count Percentage
10/10 201
90%
9/10 22
10%
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%

99.01% Average

The raw data average (mean) for all the New Zealand Frontiers valid reviews is 99.01% and is based on 223 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

4 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 223 valid reviews, the experience has 4 face-to-face reviews collected during interviews by our team.

Below is the distribution of ratings for the 4 face-to-face reviews:

Rating Count Percentage
10/10 2
50%
9/10 2
50%
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%

95.00% Average

The raw data average (mean) for all the New Zealand Frontiers face-to-face reviews is 95.00% and is based on 4 face-to-face reviews. This value is not used to calculate the ranking score and it only provided here for comparison purposes.

Weighted Average

99.56%

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
Colin Ferrington 10/10 86 days 98.83 100%
ARTHUR ROBERTS UK 10/10 86 days 98.83 100%
Bryan Y. 10/10 86 days 98.83 100%
Marie-Dominique King 10/10 115 days 97.9 99%
Georgia 10/10 146 days 96.62 98%
Will Bernard and Ciara O'Donnell 10/10 146 days 96.62 98%
Norbert 10/10 207 days 93.21 94%
Robert van de Wetering 10/10 207 days 93.21 94%
Piotr and Magda 10/10 207 days 93.21 94%
Clive Browning 10/10 268 days 88.62 90%
Darren Looker 10/10 391 days 75.77 77%
Cliff LaPlant 10/10 421 days 71.91 73%
Cathy and Kevin - UK 10/10 480 days 63.49 64%
Simon and Julie 9/10 511 days 58.62 59%
Elizabeth Kenn 10/10 511 days 58.62 59%
Juliet Woodman 10/10 511 days 58.62 59%
Rob and Leslie, Oregon USA 10/10 572 days 48.34 49%
Dina & Craig from Toronto 10/10 572 days 48.34 49%
Sue & Andy Millard 10/10 572 days 48.34 49%
Verena and Eduard 10/10 695 days 30.35 31%
Jamie Roberts 10/10 695 days 30.35 31%
julie frost 10/10 786 days 20.13 20%
Armando 10/10 786 days 20.13 20%
Brian Parsons 10/10 817 days 17.25 17%
Bruce W 10/10 817 days 17.25 17%
Alexander 10/10 845 days 14.9 15%
Helen Flanagan 10/10 845 days 14.9 15%
Martyn Chambers 10/10 876 days 12.6 13%
David Jenen 10/10 876 days 12.6 13%
Don Wilkes 10/10 876 days 12.6 13%
Andrew Jose 10/10 907 days 10.6 11%
Jay Lawton 10/10 907 days 10.6 11%
John McCready 10/10 1060 days 5.19 5%
John Graham 9/10 1182 days 4.83 5%
julie frost 10/10 1210 days 4.77 5%
Timo Herzel 10/10 1333 days 4.53 5%
Christopher Käufer 10/10 1516 days 4.18 4%
Nefyn Provis-Evans 10/10 1547 days 4.12 4%
Bill Kan 10/10 1547 days 4.12 4%
Sandy 10/10 1547 days 4.12 4%
Robin Hewson 10/10 1547 days 4.12 4%
Karen and Paul 10/10 1547 days 4.12 4%
Kim 9/10 1557 days true 4.1 4%
Jack Bryniarski 10/10 1576 days 4.06 4%
Randy and Kim 10/10 1576 days 4.06 4%
sgtbean 10/10 1607 days 4.0 4%
Mark Freitas 10/10 1607 days 4.0 4%
andrea campo 10/10 1607 days 4.0 4%
Hernan Chaves 10/10 1607 days 4.0 4%
Tiggy Booth-Jones 10/10 1607 days 4.0 4%
Farid Baharuddin 10/10 1638 days 3.94 4%
Elise Lau 10/10 1638 days 3.94 4%
Gayle Campbell 10/10 1668 days 3.88 4%
Tim Blong 10/10 1729 days 3.76 4%
Will Waine 10/10 1760 days 3.7 4%
Jason C 10/10 1760 days 3.7 4%
Alan Largue 10/10 1852 days 3.52 4%
Susie Ides 10/10 1852 days 3.52 4%
Michael Wagner 10/10 1882 days 3.46 4%
Bob Large 10/10 1882 days 3.46 4%
david watson 10/10 1882 days 3.46 4%
john McManus 10/10 1882 days 3.46 4%
Jennie Lamb 10/10 1941 days 3.34 3%
Robyn Lancaster 10/10 1972 days 3.28 3%
Matt Sparkes 10/10 1972 days 3.28 3%
Chris Hindley 10/10 1972 days 3.28 3%
andrew Pullan 10/10 1972 days 3.28 3%
Bev abrahall 10/10 1972 days 3.28 3%
Wils 10/10 1972 days 3.28 3%
Linda Fargher 10/10 1972 days 3.28 3%
Fabio Lentini 10/10 2003 days 3.22 3%
Lauren M 10/10 2003 days 3.22 3%
Judy Lambert 10/10 2033 days 3.16 3%
Jan Compton 10/10 2033 days 3.16 3%
Phil & Lin Wilde 10/10 2064 days 3.1 3%
Lester Adams 10/10 2064 days 3.1 3%
Ruth Hyslop 10/10 2094 days 3.05 3%
Andrew Main 10/10 2125 days 2.98 3%
Marcos AG 10/10 2125 days 2.98 3%
Benjamin Salazar 10/10 2217 days 2.8 3%
Mieke_Jacko 10/10 2217 days 2.8 3%
Philip Worby 9/10 2278 days 2.68 3%
Deb & Craig 9/10 2306 days 2.63 3%
Stephen Clark 10/10 2306 days 2.63 3%
Carol Seward 10/10 2306 days 2.63 3%
Frank Wölfel 10/10 2306 days 2.63 3%
Ann Barrett 10/10 2306 days 2.63 3%
James Capel 10/10 2306 days 2.63 3%
Roger McCabe 10/10 2337 days 2.57 3%
Miles Chisholm 10/10 2337 days 2.57 3%
andreas wolf 10/10 2368 days 2.51 3%
Brian 10/10 2398 days 2.45 2%
Jordan M 10/10 2398 days 2.45 2%
KATHLEEN CUNEY 10/10 2429 days 2.39 2%
Patrick Shapland 10/10 2429 days 2.39 2%
Arthur W 10/10 2429 days 2.39 2%
Joan Kelley 10/10 2459 days 2.33 2%
David Johns 10/10 2459 days 2.33 2%
Bronwyn Cikuts 10/10 2459 days 2.33 2%
Mel Catlin 10/10 2490 days 2.27 2%
Gary Kerr 10/10 2521 days 2.21 2%
matt_ellington 10/10 2551 days 2.15 2%
Dorien Broothaerts 10/10 2582 days 2.09 2%
Anthony Smith 10/10 2612 days 2.03 2%
Julian Roots 10/10 2643 days 1.97 2%
Elke + Holger 10/10 2643 days 1.97 2%
lynandsimon 10/10 2643 days 1.97 2%
Helen Grant 10/10 2643 days 1.97 2%
Mike McG 10/10 2671 days 1.92 2%
Hans Zima 10/10 2671 days 1.92 2%
Jill Fischer 10/10 2671 days 1.92 2%
william harrison 10/10 2702 days 1.86 2%
Al Campbell 10/10 2702 days 1.86 2%
heyjude 10/10 2702 days 1.86 2%
Nils Andersson 10/10 2702 days 1.86 2%
Andrew Crow 9/10 2733 days 1.79 2%
barbequeman 10/10 2763 days 1.74 2%
Chillingworth 9/10 2763 days 1.74 2%
ianscubadiver 10/10 2763 days 1.74 2%
stefael 10/10 2855 days 1.56 2%
markchiller 9/10 2855 days 1.56 2%
liamandkat2012 10/10 2886 days 1.5 2%
danielthembawhite 10/10 2916 days 1.44 1%
jodel 9/10 2947 days 1.38 1%
Tramper49 10/10 2977 days 1.32 1%
TheHoon 9/10 2977 days 1.32 1%
Roy Barton 9/10 3005 days true 1.26 1%
royb 10/10 3008 days 1.26 1%
tmdilly 10/10 3008 days 1.26 1%
mkkbven 10/10 3008 days 1.26 1%
JML 10/10 3008 days 1.26 1%
bedards 10/10 3037 days 1.2 1%
Chattykathy 10/10 3037 days 1.2 1%
Dazler 9/10 3037 days 1.2 1%
elaineandbob 10/10 3037 days 1.2 1%
Edeeee 10/10 3037 days 1.2 1%
darylw 9/10 3068 days 1.14 1%
Robeliza 9/10 3068 days 1.14 1%
kiwihaus 10/10 3068 days 1.14 1%
jenny 9/10 3068 days 1.14 1%
fms95032 10/10 3099 days 1.08 1%
theoverlander 10/10 3160 days 0.96 1%
sharons0 10/10 3160 days 0.96 1%
Sally_Watson 10/10 3160 days 0.96 1%
Tonyb436 10/10 3160 days 0.96 1%
Wenny Yap 10/10 3190 days 0.9 1%
garethd1980 10/10 3190 days 0.9 1%
jodienblue 10/10 3221 days 0.84 1%
Discen 10/10 3282 days 0.72 1%
Cookie 9/10 3313 days 0.66 1%
Marylyn 10/10 3313 days 0.66 1%
mcatlin 10/10 3313 days 0.66 1%
GWHarris 10/10 3343 days 0.6 1%
davidfrances 10/10 3374 days 0.54 1%
TraceyE 10/10 3374 days 0.54 1%
Nancycox 10/10 3374 days 0.54 1%
Kensa 10/10 3374 days 0.54 1%
roasty 10/10 3402 days 0.49 0%
WGregory 10/10 3402 days 0.49 0%
HighlandLassie 10/10 3402 days 0.49 0%
trar 10/10 3433 days 0.42 0%
AlexM 10/10 3464 days 0.36 0%
alixgibson 9/10 3464 days 0.36 0%
Jaap 9/10 3494 days 0.31 0%
millar 10/10 3494 days 0.31 0%
Hummpj 10/10 3494 days 0.31 0%
ARLENE 10/10 3525 days 0.24 0%
fittock 10/10 3525 days 0.24 0%
stinfamily 10/10 3555 days 0.19 0%
jimwood 9/10 3555 days 0.19 0%
Jem2378 10/10 3586 days 0.13 0%
cornishcouple 10/10 3678 days 0.0 0%
lorrainej 10/10 3708 days 0.0 0%
PeteandEm 10/10 3708 days 0.0 0%
Roodinthehouse 10/10 3708 days 0.0 0%
Paul Roberts 10/10 3739 days 0.0 0%
Alan Howe 10/10 3759 days true 0.0 0%
Martina Olley 10/10 3798 days 0.0 0%
jorgewoods2000 10/10 3798 days 0.0 0%
BevM 10/10 3798 days 0.0 0%
cosic1 10/10 3798 days 0.0 0%
Stephen O'Connor 10/10 3798 days 0.0 0%
Kent ONeill 10/10 3798 days 0.0 0%
Elin McCallum 10/10 3798 days 0.0 0%
fionaanddaveare 10/10 3829 days 0.0 0%
Carlos Grana 10/10 3829 days 0.0 0%
Ian Shaw 10/10 3829 days 0.0 0%
Jerry 10/10 3859 days 0.0 0%
Lisa Brooks 10/10 3859 days 0.0 0%
Philip Worby 10/10 3859 days 0.0 0%
pyxxel 10/10 3859 days 0.0 0%
JimTheCanuck 10/10 3890 days 0.0 0%
JANOT Gerard 10/10 3890 days 0.0 0%
TonyS 10/10 3890 days 0.0 0%
cal knight 10/10 3951 days 0.0 0%
John Robinson 10/10 3951 days 0.0 0%
helmet_p 10/10 3951 days 0.0 0%
sue dobbs 10/10 3951 days 0.0 0%
Ashley McGee 10/10 4043 days 0.0 0%
GusCrotty 10/10 4043 days 0.0 0%
Robin 10/10 4073 days 0.0 0%
Andrew 10/10 4073 days 0.0 0%
skent 9/10 4073 days 0.0 0%
David Clarke 10/10 4073 days 0.0 0%
Ed 10/10 4073 days 0.0 0%
ian_s 10/10 4078 days 0.0 0%
Graham 9/10 4095 days 0.0 0%
Tony Pearson 10/10 4096 days 0.0 0%
Adrian 10/10 4104 days 0.0 0%
yvonne_and_leon 10/10 4104 days 0.0 0%
Brian Etheridge 10/10 4105 days 0.0 0%
Jan Emrick 10/10 4120 days 0.0 0%
Roberto Mazumdar 9/10 4121 days 0.0 0%
Alan Morris 10/10 4122 days 0.0 0%
Dave739 10/10 4171 days 0.0 0%
Carole Leonard 10/10 4194 days 0.0 0%
bugs 10/10 4194 days 0.0 0%
Peter_C 10/10 4211 days 0.0 0%
Jeff Kotz 10/10 4214 days 0.0 0%
Dave Carlyle 10/10 4215 days 0.0 0%
George (Harry) Beardow 10/10 4225 days 0.0 0%
Peter Peterson 10/10 4295 days 0.0 0%
Jen 10/10 4843 days true 0.0 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 New Zealand Frontiers experience has plenty of reviews and does not meet the criteria for any adjustment.

Recent Reviews Adjustment

-0.56% 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 102 days. The New Zealand Frontiers experience has 5 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 New Zealand Frontiers experience has been adjusted for 31 days. Adjustments are according to the following table.

Days Adjustment
28 -0.36%
29 -0.37%
30 -0.38%
31 -0.40%
32 -0.41%
33 -0.42%
34 -0.43%

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.