Period
to 18 November 2017

The following table provides summary statistics for contract job vacancies with a requirement for CHAID skills. Included is a benchmarking guide to the contractor rates offered in vacancies that have cited CHAID over the 6 months to 18 November 2017 with a comparison to the same period in the previous 2 years.

Note that daily and hourly rates are treated separately in these statistics. When calculating contractor rate percentiles, daily rates are never derived from quoted hourly rates or vice versa.

Chi-squared Automatic Interaction Detection (CHAID)
UK
6 months to
18 Nov 2017
Same period 2016 Same period 2015
Rank 884 872 900
Rank change year-on-year -12 +28 -35
Contract jobs citing CHAID 5 14 4
As % of all contract IT jobs advertised in the UK 0.005% 0.013% 0.003%
As % of the Processes & Methodologies category 0.006% 0.016% 0.004%
Number of daily rates quoted 5 3 4
UK median daily rate £300 £300 £239
Median daily rate % change year-on-year - +25.65% -25.39%
10th Percentile £290 £300 £171
90th Percentile £555 £330 £395
UK excluding London median daily rate £300 £300 £215
% change year-on-year - +39.53% -31.47%
Number of hourly rates quoted 0 0 0
UK median hourly rate - - -
UK excluding London median hourly rate - - -

CHAID is in the Processes and Methodologies category. The following table is for comparison with the above and provides summary statistics for all contract job vacancies with a requirement for process or methodology skills.

All Process and Methodology Skills
UK
Contract vacancies with a requirement for process or methodology skills 86286 88673 93962
As % of all contract IT jobs advertised in the UK 84.52% 83.92% 81.78%
Number of daily rates quoted 57474 58658 60890
UK median daily rate £450 £425 £413
Median daily rate % change year-on-year +5.88% +3.03% +3.13%
10th Percentile £281 £263 £263
90th Percentile £630 £600 £600
UK excluding London median daily rate £400 £400 £385
% change year-on-year - +3.90% +2.67%
Number of hourly rates quoted 2038 2353 2731
UK median hourly rate £23.63 £24.00 £22.50
Median hourly rate % change year-on-year -1.56% +6.67% +18.42%
10th Percentile £11.48 £11.26 £11.50
90th Percentile £49.75 £48.75 £47.71
UK excluding London median hourly rate £24.02 £24.50 £23.50
% change year-on-year -1.96% +4.26% +17.50%

CHAID
Job Vacancy Trend

Job postings citing CHAID as a percentage of all IT jobs advertised.

Job vacancy trend for CHAID in the UK

CHAID
Contractor Daily Rate Trend

This chart provides the 3-month moving average for daily rates quoted in contract jobs citing CHAID.

Contractor daily rate trend for CHAID in the UK

CHAID
Contractor Daily Rate Histogram

The daily rate distribution of IT jobs citing CHAID over the 6 months to 18 November 2017.

Contractor daily rate histogram for CHAID in the UK

CHAID
Contractor Hourly Rate Trend

This chart provides the 3-month moving average for contractor hourly rates quoted in IT jobs citing CHAID.

Contractor hourly rate trend for CHAID in the UK

CHAID
Top 4 Contract Locations

The table below looks at the demand and provides a guide to the median contractor rates quoted in IT jobs citing CHAID within the UK over the 6 months to 18 November 2017. The 'Rank Change' column provides an indication of the change in demand within each location based on the same 6 month period last year.

Location Rank Change
on Same Period
Last Year
Matching
Contract
IT Job Ads
Median
Daily Rate
Past 6 Months
Median Daily Rate
% Change
on Same Period
Last Year
Live
Job
Vacancies
England +33 5 £300 -
UK excluding London +30 4 £300 -
South West +15 4 £300 -
London -12 1 £650 +108.00%

For the 6 months to 18 November 2017, IT contractor jobs citing CHAID also mentioned the following skills in order of popularity. The figures indicate the number co-occurrences and its proportion to all contract ads with a requirement for CHAID.

1 5 (100.00%) SQL
2 4 (80.00%) SAS
2 4 (80.00%) SPSS
2 4 (80.00%) Marketing
2 4 (80.00%) Direct Marketing
2 4 (80.00%) R
3 2 (40.00%) Visualisation
4 1 (20.00%) Power BI
4 1 (20.00%) A/B Testing
4 1 (20.00%) Monetization
4 1 (20.00%) Data Visualisation
4 1 (20.00%) Tableau
4 1 (20.00%) Big Data
4 1 (20.00%) Data Analytics
4 1 (20.00%) Analytics
4 1 (20.00%) Campaign Analysis
4 1 (20.00%) Relational Database
4 1 (20.00%) Factor Analysis
4 1 (20.00%) Information Retrieval
4 1 (20.00%) User Experience
4 1 (20.00%) Analytical Skills
4 1 (20.00%) Apache Spark
4 1 (20.00%) Algorithms
4 1 (20.00%) Computer Science
4 1 (20.00%) Scala
4 1 (20.00%) Text Mining
4 1 (20.00%) Statistical Analysis
4 1 (20.00%) Statistics
4 1 (20.00%) Telecoms
4 1 (20.00%) Business Intelligence

CHAID
Co-occurring IT Skills by Category

The follow tables expand on the table above by listing co-occurrences grouped by category. The same job type, locality and period is covered with up to 20 co-occurrences shown in each of the following categories:

Application Platforms
1 4 (80.00%) SAS
2 1 (20.00%) Apache Spark
Applications
1 4 (80.00%) SPSS
Database & Business Intelligence
1 1 (20.00%) Big Data
1 1 (20.00%) Data Mining
1 1 (20.00%) Power BI
1 1 (20.00%) Relational Database
1 1 (20.00%) Text Mining
General
1 4 (80.00%) Marketing
2 1 (20.00%) Telecoms
Job Titles
1 4 (80.00%) Analyst
1 4 (80.00%) Data Analyst
1 4 (80.00%) Data Insight Analyst
1 4 (80.00%) Insight Analyst
1 4 (80.00%) Insight Data Analyst
2 1 (20.00%) Data Scientist
Miscellaneous
1 1 (20.00%) Algorithms
1 1 (20.00%) Analytical Skills
1 1 (20.00%) Computer Science
1 1 (20.00%) User Experience
Processes & Methodologies
1 4 (80.00%) Direct Marketing
2 2 (40.00%) Visualisation
3 1 (20.00%) A/B Testing
3 1 (20.00%) Analytics
3 1 (20.00%) Business Intelligence
3 1 (20.00%) Campaign Analysis
3 1 (20.00%) Data Analytics
3 1 (20.00%) Data Visualisation
3 1 (20.00%) Factor Analysis
3 1 (20.00%) Information Retrieval
3 1 (20.00%) Monetization
3 1 (20.00%) Statistical Analysis
3 1 (20.00%) Statistics
Programming Languages
1 5 (100.00%) SQL
2 4 (80.00%) R
3 1 (20.00%) Python
3 1 (20.00%) Scala
Qualifications
1 1 (20.00%) PhD
Vendors
1 1 (20.00%) Tableau