 |
 |
Although
suitable for simple comparisons, the t-test is frequently misused, leading
to biased and/or invalid results. If you're not sure which statistical
tests are appropriate for your data, Alpha Biostats can help.
Contact us today! |
 |
 |
|
 |
ALPHA BIOSTATS SERVICES
Services listed on
this page are the most frequently requested. If your particular project
needs do not appear below, please
contact us -- we may
have what you need.
 |
Research Design
 |
Sample size estimates |
|
Randomization schemes |
|
Sampling options |
|
Potential sources of bias
|
|
Variable selection |
|
Measurement methods |
|
Questionnaire selection
|
|
Statistical analysis
methods |
|
| |
|
 |
Data Management
|
Database design
|
|
Questionnaire design
|
|
Case report form design
|
|
Missing data analysis
|
|
Error checking
|
|
Data cleaning
|
|
| |
|
 |
Data Analysis
|
Measurement reliability |
|
Inter and Intra rater reliability |
|
Nonparametric testing (for small samples or large
samples with non-normal distributions) |
|
Multivariate analyses |
|
Repeated measures models |
|
Resampling |
|
Bootstrapping |
|
| |
|
Other Important Information |
 |
Getting Results:
Review a summary of what to expect when you request services from
Alpha Biostats...
 |
   
|
 |
