Products Human Behavior E-Prime Software

E-Prime Software

E-Prime® is a suite of applications to fulfill all of your computerized experiment needs. Used by more than 15,000 professionals in the research community, E-Prime® provides a truly easy-to-use environment for computerized experiment design, data collection, and analysis. E-Prime® provides millisecond precision timing to ensure the accuracy of your data. E-Prime's flexibility to create simple to complex experiments is ideal for both novice and advanced users.

Product Image

EP 01 EP 05 EP 12 EP 14 EP 08 

More Information

The E-Prime® suite of applications includes:

• E-Studio - Drag and drop graphical interface for experiment design.
• E-Basic - Underlying scripting language of E-Prime (nearly identical to Visual Basic for Applications™).
• E-Run - Once experiment design is complete, a single mouse click generates it into an E-Basic script. E-Run then affords you the millisecond precision of stimulus presentation, synchronizations, and data collection.
• E-Merge - Quickly and easily combines your single session data files for group analysis.
• E-DataAid - Data management utility that allows you to filter, edit, analyze, and export your data.
• E-Recovery - Recovers data files in the event of early terminated experiments, or lost or corrupted files.

New with version 2.0

read more..

• Enhanced graphical interface
• Ability to play digital movies as stimuli (MPEG, AVI, WMV)
• Copy & paste objects between experiments
• Digital recording of participant vocalizations
• Increased display speed for bitmap transfers
• Support for additional image formats
• Support for presentation of stimuli on multiple video displays
• Display stimuli on any attached monitor
• Improved audio support
• Support for UNICODE and international fonts
• Support for new devices (Joystick, Parallel Port Device, Network Socket Device)
• Expanded support for larger scripts
• Improved documentation and indexing of online Help
• A comprehensive scripting language
• Professional version available with additional capabilities

E-Prime® 2.0 Requirements

E-Prime® 2.0 SP1 is compatible with PCs running Microsoft© Windows® XP SP3 32-bit/Vista SP1 32 and 64-bit/7 SP1 32 and 64-bit/8 32 and 64-bit.


  • Pentium Dual-Core or Multi-Core Processor 2GHz or higher          
  • 1024MB RAM                                                                        
  • DirectX™ video card***                                                           
  • USB Port                                                                                                              


  •  Pentium i7 Processor 
  •  2048MB RAM or higher
  •  DirectX™ 11 video card with 128MB RAM or higher
  •  Sound hardware as recommended*
  •  CD-ROM
  •  USB Port
  •  Serial Port**
  •  Internet Connection

* Please see sound timing recommendations in article 1307 of the E-Prime Knowledge Base.

** Recommended hardware add-on: Serial Response Box. USB-to-Serial conversion cable may be used to receive serial data. Please see article 1835 in the E-Prime Knowledge Base for more details.

*** DirectX 11 Hardware Acceleration required for Windows 8.

Please use Recommended hardware requirements for millisecond accurate timing while playing movies.


Eprime Youtube video channel

E-Prime How To Movies

icon E-Prime Compare Editions ( 2014-01-30 11:13:04)

icon E_Prime Features ( 2014-01-30 11:12:10)

icon E-Prime Sheet ( 2014-01-30 11:14:15)

icon E-Prime® 2.0 Components. ( 2014-01-30 11:15:17)


psycology software tools logo