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 Waitomo TOP 10 Holiday Park.

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

Waitomo TOP 10 Holiday Park

Valid Reviews

93 Valid Reviews

The Waitomo TOP 10 Holiday Park experience has a total of 94 reviews. There are 93 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 93 valid reviews:

Rating Count Percentage
10/10 28
30%
9/10 27
29%
8/10 27
29%
7/10 7
8%
6/10 1
1%
5/10 1
1%
4/10 0
0%
3/10 1
1%
2/10 1
1%
1/10 0
0%

86.45% Average

The raw data average (mean) for all the Waitomo TOP 10 Holiday Park valid reviews is 86.45% and is based on 93 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

48 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 93 valid reviews, the experience has 48 face-to-face reviews collected during interviews by our team.

Below is the distribution of ratings for the 48 face-to-face reviews:

Rating Count Percentage
10/10 14
29%
9/10 16
33%
8/10 14
29%
7/10 4
8%
6/10 0
0%
5/10 0
0%
4/10 0
0%
3/10 0
0%
2/10 0
0%
1/10 0
0%

88.33% Average

The raw data average (mean) for all the Waitomo TOP 10 Holiday Park face-to-face reviews is 88.33% and is based on 48 face-to-face reviews. This value is not used to calculate the ranking score and it only provided here for comparison purposes.

Weighted Average

81.65%

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
Grumpster 10/10 246 days 90.41 100%
Scooper 8/10 338 days 77.8 86%
Amy Alexander 8/10 368 days 74.61 83%
Megan 7/10 368 days 71.47 79%
Jgcanada 10/10 427 days 71.11 79%
R James 2/10 519 days 42.99 48%
Deb S 7/10 550 days 47.38 52%
Lee 10/10 580 days 47.03 52%
Nadene Wheatley 9/10 894 days 11.4 13%
Liz K 8/10 1168 days 4.61 5%
Scott O'Donnell 9/10 1187 days 4.82 5%
Geoffrey Brogden 9/10 1187 days 4.82 5%
lemennais perrine 8/10 1187 days 4.58 5%
Lavina Kerki 8/10 1191 days 4.57 5%
Susi Sorglos 3/10 1218 days 3.66 4%
Luke Young 8/10 1318 days 4.34 5%
Phillippa McLernon 9/10 1502 days 4.2 5%
Rainer Welsch 5/10 1554 days 3.32 4%
Jamie 9/10 1593 days 4.03 4%
Suzanne Vermeulen 6/10 1645 days 3.26 4%
Jacqui 9/10 1653 days 3.91 4%
Emma Keegan 8/10 1828 days 3.39 4%
Nicky Hurst 10/10 1845 days 3.53 4%
Tineke Verschueren 9/10 1854 days 3.51 4%
Andrew Jones 8/10 1859 days 3.33 4%
Florian Kleemann 7/10 1874 days 3.16 3%
Laurie 10/10 1887 days 3.45 4%
Stephen McNair 8/10 1918 days 3.22 4%
holidaymad from Solihull 9/10 1918 days 3.39 4%
Neville Smith 8/10 2040 days 2.99 3%
Richard 9/10 2103 days 3.03 3%
Family Trip 9/10 2225 days 2.79 3%
Glenda 10/10 2253 days 2.73 3%
Jake Bell 10/10 2284 days 2.67 3%
Paul Wood 8/10 2315 days 2.48 3%
Ut & Sacha 10/10 2376 days 2.49 3%
Kathy Hart 10/10 2529 days 2.19 2%
Andrew Pearce 10/10 2649 days 1.96 2%
Hanneke P 8/10 2649 days 1.86 2%
David Restell 8/10 2649 days 1.86 2%
Wouter Trumpie 7/10 2669 days true 1.75 2%
Stephan Olivier 8/10 2684 days true 1.8 2%
Stephan Olivier 8/10 2684 days true 1.8 2%
Fam von Hattem 8/10 2692 days true 1.78 2%
Huw Davies 8/10 2930 days true 1.34 1%
Rob Klauer 8/10 2943 days true 1.31 1%
Ed Trucie 9/10 2950 days true 1.37 2%
Peter Dellen 9/10 2967 days true 1.34 1%
Deana Peters 8/10 2967 days true 1.27 1%
Peter Putz 9/10 2969 days true 1.33 1%
Liz Stokes 9/10 2971 days true 1.33 1%
Scott Simpson 10/10 2972 days true 1.33 1%
Johannes & Katrin 9/10 2983 days true 1.31 1%
Fabienne Indergand 10/10 3050 days true 1.17 1%
Benjamin Meier 8/10 3061 days true 1.1 1%
Waldemar Schuler 10/10 3062 days true 1.15 1%
Anne Quehe 9/10 3062 days true 1.15 1%
Tacksharp 10/10 3199 days 0.88 1%
Ralph & Marloes Meyers 9/10 3289 days true 0.71 1%
lyndavid 10/10 3290 days 0.7 1%
Rens Hemselmans 8/10 3307 days true 0.64 1%
J Palmer 9/10 3313 days true 0.66 1%
Liz & Jim 10/10 3315 days true 0.66 1%
Omar Candon 10/10 3322 days true 0.64 1%
Annelie & Martin 9/10 3325 days true 0.64 1%
Tobias Torax 10/10 3336 days true 0.61 1%
Tayler Gray 9/10 3336 days true 0.61 1%
Stefan Morris 8/10 3340 days true 0.58 1%
Theo Dykhuizen 10/10 3344 days true 0.6 1%
Fred 8/10 3349 days true 0.56 1%
Carl_Larsen 10/10 3625 days 0.05 0%
AlisonB 10/10 3655 days 0.0 0%
lindam 10/10 3655 days true 0.0 0%
marisraneth 9/10 3655 days true 0.0 0%
Denecke Thorsten 9/10 3695 days true 0.0 0%
Tim Stick 8/10 3700 days true 0.0 0%
Mathias Skov 8/10 3700 days true 0.0 0%
Daryl Taylor 10/10 3707 days true 0.0 0%
Susan 10/10 3710 days true 0.0 0%
Carolina Gonzalez 10/10 3712 days true 0.0 0%
joannaw 8/10 3761 days true 0.0 0%
pimn 9/10 3770 days true 0.0 0%
GoodTimes 9/10 3776 days 0.0 0%
Furger 10/10 3778 days true 0.0 0%
jank 9/10 3867 days true 0.0 0%
clairet 7/10 3885 days true 0.0 0%
Donna 10/10 3931 days true 0.0 0%
michellew 10/10 3968 days true 0.0 0%
KatieR 9/10 4018 days true 0.0 0%
Steve Harper 7/10 4027 days true 0.0 0%
NicoleG 9/10 4053 days true 0.0 0%
Grimm 8/10 4067 days true 0.0 0%
Chris 7/10 4069 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 Waitomo TOP 10 Holiday Park 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 Waitomo TOP 10 Holiday Park 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 Waitomo TOP 10 Holiday Park 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

78%

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.