Hi, 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

119 Valid Reviews

The Scotties Rental Cars experience has a total of 136 reviews. There are 119 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 119 valid reviews, the experience has 3 face-to-face reviews collected during interviews by our team.

Below is the distribution of ratings for the 119 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 37
31%

66.30% Average

The raw data average (mean) for all the Scotties Rental Cars valid reviews is 66.30% and is based on 119 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

66.10%

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
KF 1/10 151 days 99%
Garry 1/10 913 days 52%
Mo & Mel 10/10 1035 days 100%
Scott Richards 1/10 1157 days 30%
Richard 10/10 1369 days 41%
dacster 1/10 1400 days 15%
R Cookson 1/10 1553 days 9%
Edmund Hillstone 10/10 2099 days 11%
Catherine thompson 10/10 2099 days 11%
Shayal Singh 10/10 2099 days 11%
JaJa 1/10 2312 days 4%
Uma 1/10 2374 days 4%
Awesome Starters 8/10 2588 days 8%
Peter Kohler 10/10 2618 days 8%
Wolf G 10/10 2649 days 8%
Bruno Bomitali 10/10 2677 days 8%
Phil 10/10 2677 days 8%
Nit Zys 10/10 2677 days 8%
Maria L. 1/10 2708 days 3%
Diego D 2/10 2708 days 4%
Doris, Hamburg 10/10 2708 days 8%
Amy 1/10 2739 days 3%
Nick 7/10 2739 days 7%
Bec 2/10 2800 days 3%
Jon 1/10 2800 days 3%
Mark 10/10 2830 days 7%
Nik B 9/10 2861 days 7%
Jakobus Crane 10/10 2861 days 7%
Wayne 1/10 2892 days 3%
George Thomas 10/10 2892 days 7%
John Coulter 8/10 2892 days 7%
Didier Charot 10/10 2892 days 7%
Gerard Mackle 8/10 2892 days 7%
P Douglas 1/10 2892 days 3%
Amy 1/10 2892 days 3%
Suzy Loscin 10/10 2892 days 7%
Harry de Melmanche 10/10 2922 days 7%
Max Williamson 10/10 2922 days 7%
J Freighter 9/10 2922 days 7%
Aaron Westhuizen 10/10 2922 days 7%
Mark B 10/10 2922 days 7%
M Arbuckle 9/10 2953 days 7%
Dean 9/10 2983 days 7%
Horst 7/10 2983 days 6%
Amelia M 1/10 2983 days 3%
Lewry 10/10 2983 days 7%
James Maddly 10/10 2983 days 7%
Irina 10/10 2983 days 7%
corby 1/10 3014 days 3%
Zhen Ni 10/10 3014 days 6%
andrew 1/10 3014 days 3%
Bridget 10/10 3014 days 6%
KP Sumner 10/10 3014 days 6%
Kevin D 10/10 3014 days 6%
Daniel Skiffington 1/10 3041 days 2%
Luus 9/10 3042 days 6%
Marcus 10/10 3042 days 6%
Laurie MacKenzie 10/10 3042 days 6%
D Freeman 10/10 3042 days 6%
Christine RUTHERFORD 1/10 3042 days 2%
Rhonda Rose 1/10 3103 days 2%
Ian Beaton 1/10 3164 days 2%
Ian Shere 10/10 3225 days 5%
david song 1/10 3256 days 2%
Joe Millman 1/10 3286 days 2%
Jonathan Farries 1/10 3286 days 2%
Kevin Sullivan 1/10 3347 days 2%
Suzanne Perigo 10/10 3347 days 5%
Gerald Till 1/10 3378 days 2%
Bob Pricer 10/10 3378 days 5%
Janet Lee 1/10 3378 days 2%
WorldTraveler22 1/10 3406 days 2%
Amira Rashid 1/10 3406 days 2%
Yadu Prabhakar 1/10 3437 days 2%
Stephen Campbell 8/10 3437 days 4%
Sharron Wetere 1/10 3437 days 2%
Antony Kinsey 1/10 3437 days 2%
Martin Guhn 1/10 3438 days 2%
Kevin Hodgson 10/10 3468 days 4%
worldTraveler 1/10 3468 days 2%
Luke 6/10 3481 days 2%
Deidre 10/10 3529 days 4%
An G 9/10 3529 days 4%
Sam Cartwright 10/10 3590 days 4%
Barry Codlin 9/10 3651 days 3%
Priscilla Gagliano 1/10 3744 days 1%
Richard Kensington 10/10 3803 days 3%
KP Sumner 9/10 3803 days 3%
Stephen Jeffress 10/10 3803 days 3%
Loyann Loyann 10/10 3835 days 3%
Ron Eastwall 10/10 3864 days 2%
Susan Gadsby 10/10 3865 days 2%
John Waddy 9/10 3895 days 2%
Peter Rigby 10/10 3925 days 2%
Roderick Jones 9/10 3926 days 2%
Pierce Power 10/10 3956 days 2%
Rob Blair 10/10 3957 days 2%
Robert Pollock 9/10 3987 days 2%
P Lundin 10/10 3987 days 2%
P Wilson 10/10 3987 days 2%
CD Ash 1/10 4109 days 0%
Steven Thompson 10/10 4168 days 1%
Graham Dolan 10/10 4168 days 1%
nadine williams 9/10 4168 days 1%
Jenny Tebbutt 9/10 4168 days 1%
Paul K 1/10 4229 days 0%
Sophiana B 10/10 4260 days 0%
Zak Ruffin 8/10 4353 days 0%
Jeremy Goodwin 10/10 4502 days 2%
Serge Steiner 9/10 4533 days 2%
Doris 9/10 4534 days 2%
Sophie Faulkner 10/10 4534 days 2%
Wilf Healy 10/10 4565 days 2%
Ron Maurice 9/10 4687 days 2%
MarkA 2/10 4718 days 1%
travellingted 1/10 5691 days 1%
Jana 9/10 6289 days 1%
Edmund Hillstone 10/10 6619 days 2%
Susan 3/10 7020 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

-4.56% 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 106 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 127 days. Adjustments are according to the following table.

Days Adjustment
124 -1.52%
125 -1.53%
126 -1.54%
127 -1.56%
128 -1.57%
129 -1.58%
130 -1.59%

Balancing Adjustment

12.79% 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

74%

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.