Pricing:

Pricing is on an hourly basis. A reduced hourly rate is available for fixed, long term collaborations (minimum 6 hours/week)

Time required for data analysis:

Reproduced with permission from Derek Stephens (Biostatistics, Design and Analysis Unit, The Hospital for Sick Children, Toronto).  Note that these amounts are estimates only. Data errors/anomalies found during data cleaning and/or analysis, changes to the scope of the project, and revisions needed for publication may substantially increase these values. Plan research budgets accordingly.

1. Basic I

  • t-tests

  • χ²-tests

  • Descriptive stats

  • Less than 5 variables to test against 2 groups

  • Clean data by our standards

 

Estimated time:  5hrs

2. Basic  II

  • Includes Basic I

  • Up to 20 variables

  • ANOVA

  • Some categorical data

  • Classical designs

  • Regressions -- model building with variables given by investigator

  • Data modification

 

Estimated time:  20 hours

3. Intermediate I

  • Includes Basic II

  • Plus up to 30 variables

  • Complicated repeated measures ANOVA

  • Standard complex designs for categorical data

  • Extensive modeling - variables to be defined by statistical methods

  • A few multivariate techniques may be necessary

  • Some data modification

 

Estimated time:  45 hours

4.  Advanced

  • Includes Intermediate I

  • Plus up to 50 variables

  • Complicated repeated measures ANOVA

  • Nonstandard designs

  • Nonstandard complex designs for categorical data - research required

  • Extensive modeling - variables to be defined by statistical methods

  • Multivariate techniques should be performed

  • Data modification

  • Write stats section - research required

 

Estimated time:  70-100 hours

5. Extensive Involvement

  • Involvement in the study over several years

  • Time and cost will be worked out with investigator