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 Whakarewarewa.

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

Whakarewarewa

Valid Reviews

177 Valid Reviews

The Whakarewarewa experience has a total of 178 reviews. There are 177 valid reviews that are included when calculating the ranking score and 1 invalid review 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 177 valid reviews:

Rating Count Percentage
10/10 26
15%
9/10 32
18%
8/10 53
30%
7/10 37
21%
6/10 14
8%
5/10 6
3%
4/10 3
2%
3/10 3
2%
2/10 2
1%
1/10 1
1%

77.46% Average

The raw data average (mean) for all the Whakarewarewa valid reviews is 77.46% and is based on 177 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

169 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 177 valid reviews, the experience has 169 face-to-face reviews collected during interviews by our team.

Below is the distribution of ratings for the 169 face-to-face reviews:

Rating Count Percentage
10/10 24
14%
9/10 31
18%
8/10 51
30%
7/10 35
21%
6/10 14
8%
5/10 6
4%
4/10 3
2%
3/10 2
1%
2/10 2
1%
1/10 1
1%

77.46% Average

The raw data average (mean) for all the Whakarewarewa face-to-face reviews is 77.46% and is based on 169 face-to-face reviews. This value is not used to calculate the ranking score and it only provided here for comparison purposes.

Weighted Average

83.75%

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
Amy Lord 10/10 605 days true 43.05 100%
Chloe B 8/10 629 days 37.44 87%
Richard 10/10 684 days true 31.77 74%
Anis Quentin 9/10 693 days true 30.61 71%
Dorthe Soeholm 9/10 965 days true 7.68 18%
Theerada Wongkaew 10/10 1004 days true 6.31 15%
Joonas Lehtomaki 9/10 1009 days true 6.17 14%
Jonathan Verschuuren 8/10 1010 days true 5.84 14%
Laura David 9/10 1012 days true 6.09 14%
Michael 10/10 1013 days true 6.07 14%
Anne 8/10 1013 days true 5.76 13%
Heyuuiutha Lokithas 7/10 1015 days true 5.47 13%
Philip Sheridan 7/10 1021 days true 5.34 12%
Sandra Reynders 8/10 1022 days true 5.55 13%
Colin George 10/10 1023 days true 5.82 14%
Alexandra Luerner 10/10 1025 days true 5.78 13%
Frank Bien 10/10 1025 days true 5.78 13%
Felicity Ford 7/10 1026 days true 5.24 12%
Louis Nilsson 10/10 1031 days true 5.65 13%
Gilbert Baptiste 6/10 1031 days true 4.69 11%
Emilie Bavard 6/10 1031 days true 4.69 11%
Barbara 10/10 1040 days true 5.48 13%
Paul Tysoe 8/10 1048 days true 5.08 12%
Jessica Nasstrom 6/10 1054 days true 4.37 10%
ben carroll 10/10 1055 days 5.25 12%
Eveline 8/10 1064 days true 4.89 11%
Henry Ang 7/10 1116 days 4.52 10%
Michelle Smit 9/10 1178 days 4.86 11%
Gesa Roemer 4/10 1276 days true 3.71 9%
Gerbrand Smidt 9/10 1283 days true 4.68 11%
Silvia 5/10 1286 days true 3.79 9%
Jennifer Nguyen 8/10 1294 days true 4.43 10%
Robin Stamm 8/10 1294 days true 4.43 10%
Jonathan Foskett 6/10 1295 days true 3.87 9%
Clara Guinard 7/10 1297 days true 4.24 10%
Hannes 9/10 1298 days true 4.65 11%
John and Jan 9/10 1302 days true 4.65 11%
Adrienne Hoet 6/10 1303 days true 3.85 9%
Benoit Leclerc 7/10 1315 days true 4.21 10%
Raul Ellermann 6/10 1320 days true 3.83 9%
Catharina Cuntz 6/10 1335 days true 3.81 9%
Klaas Huis 8/10 1336 days true 4.36 10%
Maxima Buisan 7/10 1341 days true 4.17 10%
Niels Hoogendooen 6/10 1343 days true 3.8 9%
Martina 9/10 1350 days true 4.56 11%
Martin Bakker 9/10 1378 days true 4.52 10%
Elisabeth Ringswandl 9/10 1654 days true 4.04 9%
Thomas Haslbeck 8/10 1654 days true 3.84 9%
Miriam Burchartz 10/10 1655 days true 4.04 9%
Leonie Jennings 9/10 1699 days true 3.97 9%
Trevor Wichman 8/10 1699 days true 3.77 9%
Sibylle and Nadine 9/10 1747 days true 3.88 9%
Anne Courtenay 8/10 2038 days true 3.22 7%
Friederike Kranzin 10/10 2038 days true 3.39 8%
Amanda 9/10 2041 days true 3.38 8%
Derek 8/10 2041 days true 3.21 7%
Juliane 10/10 2043 days true 3.38 8%
Hannah 8/10 2043 days true 3.21 7%
Dan Lawson 10/10 2071 days true 3.33 8%
Henry Thiel 3/10 2071 days true 2.56 6%
Sina Sacranie 10/10 2071 days true 3.33 8%
Julia Bonisch 8/10 2074 days true 3.16 7%
Rupert 9/10 2085 days true 3.3 8%
Dupont 7/10 2402 days true 2.51 6%
David Lee 8/10 2408 days true 2.61 6%
Henrik Steinruecken 6/10 2468 days true 2.2 5%
Wenmechers 8/10 2476 days true 2.5 6%
Martin Thomas 9/10 2478 days true 2.63 6%
Paul Lawrence 8/10 2484 days true 2.49 6%
Gary Brooks 8/10 2486 days true 2.49 6%
Marian 7/10 2488 days true 2.38 6%
Adam Hassan 9/10 2491 days true 2.61 6%
Gerard van de Ven 9/10 2491 days true 2.61 6%
Lutz Huuemorder 8/10 2492 days true 2.48 6%
Julie Lamart 9/10 2495 days true 2.6 6%
Shannon Taylor 7/10 2495 days true 2.37 6%
Kerstin 8/10 2501 days true 2.46 6%
Denny 10/10 2608 days 2.41 6%
Petr Stepanek 10/10 2753 days true 2.16 5%
Sebastian Hol 5/10 2757 days true 1.74 4%
Jochem Snyders 9/10 2764 days true 2.14 5%
Vitek 8/10 2765 days true 2.03 5%
Daniel 7/10 2765 days true 1.95 5%
Carolin Haas 5/10 2771 days true 1.73 4%
Pierre Boulanger 9/10 2773 days true 2.13 5%
Dave Simpson 7/10 2775 days true 1.93 4%
Monica 10/10 2776 days true 2.12 5%
Mags Adams 9/10 2776 days true 2.12 5%
Hardy 10/10 2776 days true 2.12 5%
Nelly & Lisa 8/10 2777 days true 2.01 5%
Lepied 7/10 2777 days true 1.93 4%
Graeme E 9/10 2781 days true 2.11 5%
Colin Philpott 9/10 2783 days true 2.11 5%
Kim Thorsted 7/10 2784 days true 1.92 4%
R Laurysen 7/10 2787 days true 1.91 4%
Corv V D Hof 8/10 2787 days true 2.0 5%
Anika 7/10 2789 days true 1.91 4%
Lilja Bjork Hermannsdottir 9/10 2789 days true 2.1 5%
Remy van Heugten 6/10 2789 days true 1.74 4%
Stefan Roehrbein 8/10 2790 days true 1.99 5%
J Knol 8/10 2816 days true 1.95 5%
Niels Daubjerg 9/10 2853 days true 1.99 5%
Peter, Noelle & Susanne 7/10 2855 days true 1.81 4%
Rebecca & Hugh Small 5/10 2862 days true 1.6 4%
David & Mary-Jane Ryder 9/10 2864 days true 1.97 5%
Caroline 8/10 2866 days true 1.87 4%
Erik Folkersen 8/10 2866 days true 1.87 4%
Wolfgang Goggel 10/10 2866 days true 1.97 5%
Leif Sorensen 8/10 2866 days true 1.87 4%
Andy Lever 8/10 2867 days true 1.87 4%
Rudy Witt 7/10 2868 days true 1.79 4%
Matthys van den Heuuel 7/10 2872 days true 1.78 4%
Robin van der Linden 8/10 3078 days true 1.52 4%
Petra 10/10 3090 days true 1.58 4%
Karin & Bastiaan 8/10 3091 days true 1.5 3%
Kris Gijbels 9/10 3105 days true 1.56 4%
Danielle 6/10 3105 days true 1.29 3%
Nathalie 3/10 3111 days true 1.19 3%
Nicola Thackray 8/10 3114 days true 1.47 3%
Strieson 7/10 3128 days true 1.38 3%
Ini & Cees 7/10 3129 days true 1.38 3%
Peter 7/10 3132 days true 1.38 3%
Mark Leeuwenburgh 8/10 3132 days true 1.44 3%
Angela 9/10 3143 days true 1.49 3%
Eva Weichs 7/10 3145 days true 1.36 3%
Nicole 5/10 3146 days true 1.21 3%
Rossiter 9/10 3148 days true 1.48 3%
Derek Woodward 10/10 3149 days true 1.48 3%
Elinor Bell 1/10 3150 days true 1.08 3%
Robin Schomburg 10/10 3152 days true 1.48 3%
Katrin & Mark 7/10 3155 days true 1.34 3%
Claudia 8/10 3419 days true 0.97 2%
krisevelyn 4/10 3431 days true 0.79 2%
Richard Spore 9/10 3479 days true 0.92 2%
Mike Peirce 8/10 3486 days true 0.86 2%
Venot 8/10 3495 days true 0.85 2%
Christen Hans 4/10 3506 days true 0.69 2%
Jamie Hallifax 8/10 3511 days true 0.82 2%
Emily Walters 8/10 3518 days true 0.81 2%
Ines Diana 5/10 3519 days true 0.69 2%
Wolfgang G 10/10 3526 days true 0.84 2%
mariekef 8/10 3566 days true 0.73 2%
selinab 7/10 3575 days true 0.69 2%
Peter Essink 7/10 3584 days true 0.67 2%
Karin Linder 8/10 3586 days true 0.7 2%
Helen Pet 8/10 3590 days true 0.69 2%
Richard Kesteleyn 2/10 3590 days true 0.55 1%
Solveig Mosinski 8/10 3594 days true 0.68 2%
Christine Van Den Berg Michele Imbach 10/10 3605 days true 0.7 2%
Wim Put 8/10 3608 days true 0.66 2%
eowyn2k 3/10 3612 days 0.53 1%
skorn 7/10 3706 days true 0.48 1%
SSheil 7/10 3814 days true 0.31 1%
UlaR 10/10 3818 days true 0.34 1%
straw64 8/10 3826 days 0.31 1%
dieteru 8/10 3826 days true 0.31 1%
Sarah_rae 8/10 3842 days true 0.28 1%
Gerd Hebbel 6/10 3842 days true 0.25 1%
Mick 7/10 3843 days true 0.27 1%
Jasmin 9/10 3857 days true 0.27 1%
Stefau 7/10 3857 days true 0.25 1%
MrHebbard 6/10 3859 days true 0.22 1%
siemen 2/10 3868 days true 0.19 0%
Van Dam 7/10 3889 days true 0.2 0%
Gunhild 8/10 3891 days true 0.2 0%
Oliver 8/10 3891 days true 0.2 0%
Pavol 8/10 3891 days true 0.2 0%
KTinga 8/10 3898 days true 0.19 0%
Michael 8/10 3907 days true 0.18 0%
Gerits 7/10 3939 days true 0.12 0%
Sluijs 7/10 3943 days true 0.11 0%
Inga 6/10 3952 days true 0.09 0%
Nadia 7/10 3960 days true 0.09 0%
Naomi Horton 7/10 4219 days true 0.0 0%
Roger Repolusk 7/10 4223 days true 0.0 0%
Lena1 7/10 4227 days 0.0 0%
Vaclaf 8/10 4237 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 Whakarewarewa experience has plenty of reviews and does not meet the criteria for any adjustment.

Recent Reviews Adjustment

-3.98% Adjustment

There may be an adjustment if an experience hasn't received any reviews within the last 60 days. However the Whakarewarewa 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 199 days.

The Whakarewarewa experience has been adjusted for 199 days. Adjustments are according to the following table.

Days Adjustment
196 -3.92%
197 -3.94%
198 -3.96%
199 -3.98%
200 -4.00%
201 -4.02%
202 -4.04%

Final Ranking Score

80%

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.