Ranking Score Explained

Kia ora, 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 Scotties Rental Cars.

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

Scotties Rental Cars

Valid Reviews

118 Valid Reviews

The Scotties Rental Cars experience has a total of 135 reviews. There are 118 valid reviews that are included when calculating the ranking score and 17 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.

Within these 118 valid reviews, the experience has 3 face-to-face reviews collected during interviews by our team.

Below is the distribution of ratings for the 118 valid reviews:

Rating Count Percentage
10/10 53
45%
9/10 17
14%
8/10 5
4%
7/10 2
2%
6/10 1
1%
5/10 0
0%
4/10 0
0%
3/10 1
1%
2/10 3
3%
1/10 36
31%

66.78% Average

The raw data average (mean) for all the Scotties Rental Cars valid reviews is 66.78% and is based on 118 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

73.06%

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
Garry 1/10 772 days 49%
Mo & Mel 10/10 894 days 100%
Scott Richards 1/10 1016 days 32%
Richard 10/10 1228 days 47%
dacster 1/10 1259 days 17%
R Cookson 1/10 1412 days 11%
Edmund Hillstone 10/10 1958 days 9%
Catherine thompson 10/10 1958 days 9%
Shayal Singh 10/10 1958 days 9%
JaJa 1/10 2171 days 3%
Uma 1/10 2233 days 3%
Awesome Starters 8/10 2447 days 7%
Peter Kohler 10/10 2477 days 7%
Wolf G 10/10 2508 days 7%
Bruno Bomitali 10/10 2536 days 7%
Phil 10/10 2536 days 7%
Nit Zys 10/10 2536 days 7%
Maria L. 1/10 2567 days 3%
Diego D 2/10 2567 days 3%
Doris, Hamburg 10/10 2567 days 6%
Amy 1/10 2598 days 3%
Nick 7/10 2598 days 6%
Bec 2/10 2659 days 3%
Jon 1/10 2659 days 2%
Mark 10/10 2689 days 6%
Nik B 9/10 2720 days 6%
Jakobus Crane 10/10 2720 days 6%
Wayne 1/10 2751 days 2%
George Thomas 10/10 2751 days 6%
John Coulter 8/10 2751 days 6%
Didier Charot 10/10 2751 days 6%
Gerard Mackle 8/10 2751 days 6%
P Douglas 1/10 2751 days 2%
Amy 1/10 2751 days 2%
Suzy Loscin 10/10 2751 days 6%
Harry de Melmanche 10/10 2781 days 6%
Max Williamson 10/10 2781 days 6%
J Freighter 9/10 2781 days 6%
Aaron Westhuizen 10/10 2781 days 6%
Mark B 10/10 2781 days 6%
M Arbuckle 9/10 2812 days 6%
Dean 9/10 2842 days 5%
Horst 7/10 2842 days 5%
Amelia M 1/10 2842 days 2%
Lewry 10/10 2842 days 5%
James Maddly 10/10 2842 days 5%
Irina 10/10 2842 days 5%
corby 1/10 2873 days 2%
Zhen Ni 10/10 2873 days 5%
andrew 1/10 2873 days 2%
Bridget 10/10 2873 days 5%
KP Sumner 10/10 2873 days 5%
Kevin D 10/10 2873 days 5%
Daniel Skiffington 1/10 2900 days 2%
Luus 9/10 2901 days 5%
Marcus 10/10 2901 days 5%
Laurie MacKenzie 10/10 2901 days 5%
D Freeman 10/10 2901 days 5%
Christine RUTHERFORD 1/10 2901 days 2%
Rhonda Rose 1/10 2962 days 2%
Ian Beaton 1/10 3023 days 2%
Ian Shere 10/10 3084 days 5%
david song 1/10 3115 days 2%
Joe Millman 1/10 3145 days 2%
Jonathan Farries 1/10 3145 days 2%
Kevin Sullivan 1/10 3206 days 2%
Suzanne Perigo 10/10 3206 days 4%
Gerald Till 1/10 3237 days 2%
Bob Pricer 10/10 3237 days 4%
Janet Lee 1/10 3237 days 2%
WorldTraveler22 1/10 3265 days 2%
Amira Rashid 1/10 3265 days 2%
Yadu Prabhakar 1/10 3296 days 2%
Stephen Campbell 8/10 3296 days 4%
Sharron Wetere 1/10 3296 days 2%
Antony Kinsey 1/10 3296 days 2%
Martin Guhn 1/10 3297 days 2%
Kevin Hodgson 10/10 3327 days 4%
worldTraveler 1/10 3327 days 1%
Luke 6/10 3340 days 2%
Deidre 10/10 3388 days 4%
An G 9/10 3388 days 3%
Sam Cartwright 10/10 3449 days 3%
Barry Codlin 9/10 3510 days 3%
Priscilla Gagliano 1/10 3603 days 1%
Richard Kensington 10/10 3662 days 3%
KP Sumner 9/10 3662 days 2%
Stephen Jeffress 10/10 3662 days 3%
Loyann Loyann 10/10 3694 days 2%
Ron Eastwall 10/10 3723 days 2%
Susan Gadsby 10/10 3724 days 2%
John Waddy 9/10 3754 days 2%
Peter Rigby 10/10 3784 days 2%
Roderick Jones 9/10 3785 days 2%
Pierce Power 10/10 3815 days 2%
Rob Blair 10/10 3816 days 2%
Robert Pollock 9/10 3846 days 2%
P Lundin 10/10 3846 days 2%
P Wilson 10/10 3846 days 2%
CD Ash 1/10 3968 days 1%
Steven Thompson 10/10 4027 days 1%
Graham Dolan 10/10 4027 days 1%
nadine williams 9/10 4027 days 1%
Jenny Tebbutt 9/10 4027 days 1%
Paul K 1/10 4088 days 0%
Sophiana B 10/10 4119 days 1%
Zak Ruffin 8/10 4212 days 1%
Jeremy Goodwin 10/10 4361 days 0%
Serge Steiner 9/10 4392 days 2%
Doris 9/10 4393 days 2%
Sophie Faulkner 10/10 4393 days 2%
Wilf Healy 10/10 4424 days 2%
Ron Maurice 9/10 4546 days 2%
MarkA 2/10 4577 days 1%
travellingted 1/10 5550 days 1%
Jana 9/10 6148 days 1%
Edmund Hillstone 10/10 6478 days 2%
Susan 3/10 6879 days 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 Scotties Rental Cars experience has plenty of reviews and does not meet the criteria for any adjustment.

Recent Reviews Adjustment

-7.06% 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 44 days. The Scotties Rental Cars experience has 0 recent rankings. Adjustments are according to the following table:

Recent Reviews Adjustment
0 -3.00%
1 -2.63%
2 -1.50%
3 -0.38%
4 -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 Scotties Rental Cars experience has been adjusted for 200 days. Adjustments are according to the following table.

Days Adjustment
197 -4.00%
198 -4.02%
199 -4.04%
200 -4.06%
201 -4.08%
202 -4.10%
203 -4.12%

Balancing Adjustment

9.51% 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 customers 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

76%

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.