Ranking Score Explained

Hey, 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 National Army Museum.

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.

Cymen Crick's avatar

Cymen Crick

Rankers Owner

National Army Museum

Valid Reviews

45 Valid Reviews

The National Army Museum experience has a total of 45 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 45 valid reviews:

Rating Count Percentage
10/10 11
24%
9/10 17
38%
8/10 8
18%
7/10 7
16%
6/10 1
2%
5/10 1
2%
4/10 0
0%
3/10 0
0%
2/10 0
0%
1/10 0
0%

86.00% Average

The raw data average (mean) for all the National Army Museum valid reviews is 86.00% and is based on 45 valid reviews. This value is not used to calculate the ranking score and it only provided here as a comparison to the weighted average.

Weighted Average

88.09%

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 Relative Weight
Marine 8/10 110 days 99%
Liam S 10/10 169 days 100%
Kii 9/10 414 days 91%
Joel Fryett 9/10 535 days 84%
Voro 9/10 566 days 82%
Steph 7/10 566 days 77%
Annalena 10/10 596 days 81%
Jonathan Bedford 8/10 627 days 77%
Henry 7/10 688 days 69%
Penelope 10/10 719 days 72%
Dumytru Horda 9/10 869 days 57%
Lucie 9/10 900 days 54%
Rich T 10/10 900 days 55%
Paige Hayward 8/10 931 days 50%
Dave 9/10 931 days 51%
Paul Tayler 9/10 931 days 51%
Mylène 7/10 961 days 45%
vwvanlife 9/10 992 days 45%
Alex 10/10 1084 days 37%
Terry 10/10 1206 days 27%
Mike&Fe 9/10 1234 days 25%
Hannah 9/10 1265 days 23%
Tourist in my own country 9/10 1630 days 7%
Gia 8/10 1996 days 5%
D&R 5/10 2118 days 3%
Chulses 9/10 2180 days 4%
Alison 9/10 2210 days 4%
Nadia 8/10 2302 days 4%
Marion & Leonie 10/10 2330 days 4%
Michael S 9/10 2330 days 4%
Tim Bartlett 10/10 2361 days 4%
Dan 10/10 2361 days 4%
Jude 8/10 2422 days 4%
Steffi 6/10 2422 days 3%
Jess 10/10 2575 days 4%
Julien Turpin 9/10 2871 days 3%
Judy Aspinall 8/10 2986 days 3%
Anh Huynh 7/10 3088 days 2%
Marina 7/10 3423 days 2%
Chris Whittington 9/10 3814 days 1%
Mathieu Flechelle 8/10 3822 days 1%
Lois Moreland 9/10 3853 days 1%
John Treasure 7/10 4156 days 0%
GN100 7/10 4340 days 0%
L P 10/10 4371 days 0%

Adjustments

No Adjustment

Several adjustments to the weighted average may be added to improve relevancy and credibility. National Army Museum does not meet the criteria for any of these adjustments to apply.

Balancing Adjustment

1.28% Adjustment

Every experience's review score is adjusted to balance out the disproportional number of negative reviews that are contributed.

You won't be surprised to learn that disgruntled folk are more likely to leave a review than happy ones. They are motivated to share their experience and warn others. We consider this a good thing and it's why reading the reviews is important. However we've learned it can misrepresent the experience in a more overall sense.

We apply a balancing adjustment to counteract this effect and ensure the ranking score is a more fair representation of the experience. This adjustment is applied equally to all experiences.

Final Ranking Score

89%

The final ranking score once any adjustments, ratings, and rounding has been applied. This value is recalculated each day and a short rolling average is applied. Therefore it may not be precisely accurate based on the other values presented.