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 The Rock Adventure Cruise.

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

The Rock Adventure Cruise

Valid Reviews

65 Valid Reviews

The The Rock Adventure Cruise experience has a total of 65 valid reviews. There are no 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 65 valid reviews:

Rating Count Percentage
10/10 49
75%
9/10 10
15%
8/10 2
3%
7/10 0
0%
6/10 1
2%
5/10 1
2%
4/10 0
0%
3/10 1
2%
2/10 1
2%
1/10 0
0%

94.15% Average

The raw data average (mean) for all the The Rock Adventure Cruise valid reviews is 94.15% and is based on 65 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

16 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 65 valid reviews, the experience has 16 face-to-face reviews collected during interviews by our team.

Below is the distribution of ratings for the 16 face-to-face reviews:

Rating Count Percentage
10/10 10
63%
9/10 5
31%
8/10 1
6%
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%

95.63% Average

The raw data average (mean) for all the The Rock Adventure Cruise face-to-face reviews is 95.63% and is based on 16 face-to-face reviews. This value is not used to calculate the ranking score and it only provided here for comparison purposes.

Weighted Average

94.20%

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
MARK CURPHEY 9/10 724 days true 32.17 100%
Geraldine Sharrock 10/10 998 days true 7.79 23%
Jess 10/10 1035 days true 6.68 19%
Amanda Cook 10/10 1383 days 4.61 13%
Rita Hochstiasser 9/10 1715 days true 4.98 14%
ThereseShore 8/10 2083 days 3.65 10%
Christina Rodewald 9/10 2088 days true 4.37 12%
Darren Abbott 9/10 2138 days true 4.29 12%
Bethelanna 10/10 2236 days 3.44 9%
Lisa Ruhfus 10/10 2429 days true 3.81 10%
graemec 10/10 2449 days 3.15 8%
Mike1952 10/10 2449 days 3.15 8%
Laurent_F 10/10 2572 days 2.98 7%
Thierry Meylan 10/10 2762 days true 3.26 8%
Johanna & Mark 8/10 2768 days true 3.25 8%
frednovella 10/10 2786 days 2.68 6%
Sarah Pattis 10/10 2801 days true 3.2 8%
vbleminz 10/10 2876 days 2.56 6%
English_Mark 10/10 2876 days 2.56 6%
jblack 10/10 2937 days 2.48 6%
Eva 10/10 3177 days true 2.58 6%
flozi 10/10 3179 days 2.15 5%
Moritz Scheuer 10/10 3210 days 2.1 5%
simone_m 10/10 3210 days 2.1 5%
Angela Stringer 10/10 3210 days 2.1 5%
lorna haigh 10/10 3210 days 2.1 5%
Clem 10/10 3210 days 2.1 5%
GoodTimes 9/10 3241 days 2.06 4%
Love2Travel146 10/10 3241 days 2.06 4%
Stefanie E 10/10 3248 days true 2.46 6%
Mareike G 10/10 3253 days true 2.45 6%
debbiehinman 10/10 3271 days 2.02 4%
Mark Coetzee 10/10 3271 days 2.02 4%
zenzen 10/10 3271 days 2.02 4%
Tiare Boyes 10/10 3271 days 2.02 4%
sianac 10/10 3271 days 2.02 4%
mattp83 10/10 3302 days 1.98 4%
Hannah 10/10 3302 days 1.98 4%
Alex D'Souza 2/10 3302 days 1.74 3%
Liliana Tello 10/10 3302 days 1.98 4%
duncan spokes 10/10 3302 days 1.98 4%
Jamie Hicks 10/10 3332 days 1.94 4%
Eric Guthey 10/10 3332 days 1.94 4%
Jackie Anderson 10/10 3332 days 1.94 4%
Peter88 10/10 3485 days 1.73 3%
Kilian Lankes 9/10 3485 days 1.73 3%
Laura Mueller 10/10 3516 days 1.68 3%
straw64 5/10 3544 days 1.65 3%
RentonDarcy 6/10 3544 days 1.65 3%
Tia Lanzetta 9/10 3544 days 1.65 3%
landlord 3/10 3572 days 1.46 3%
Jess Hickman 10/10 3575 days 1.6 3%
Wayne Thomas 10/10 3575 days 1.6 3%
Ashleigh Thomas 10/10 3575 days 1.6 3%
jbdetwiler 10/10 3575 days 1.6 3%
GEM 10/10 3575 days 1.6 3%
Dale Baker 10/10 3575 days 1.6 3%
amyamy05 10/10 3636 days 1.52 3%
Christopher East 9/10 3667 days 1.48 3%
Helen 9/10 3835 days true 1.5 3%
John Ryan 10/10 3862 days true 1.45 3%
max w 10/10 3910 days 1.14 2%
Karyn 10/10 3924 days 1.12 2%
Meike 10/10 4248 days true 0.82 1%
rwales 9/10 4275 days 0.64 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 The Rock Adventure Cruise experience has plenty of reviews and does not meet the criteria for any adjustment.

Recent Reviews Adjustment

-7.28% Adjustment

There may be an adjustment if an experience hasn't received any reviews within the last 60 days. However the The Rock Adventure Cruise 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 364 days.

The The Rock Adventure Cruise experience has been adjusted for 364 days. Adjustments are according to the following table.

Days Adjustment
361 -7.22%
362 -7.24%
363 -7.26%
364 -7.28%
365 -7.30%
366 -7.32%
367 -7.34%

Final Ranking Score

87%

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.