Conclusions

Excel advantages

• Widely availabile and used
• Off-the-shelf functionality via function wizard
• Easy to develop workbooks for special purposes
• User friendly

Java advantages

• Portable to many platforms
• Can set up special-purpose applets for consulting clients, even distant ones
• Object system is really necessary for clean development of multifactor scenarios
• Consultant friendly

Future developments

• More distributions, more Excel workbooks
• Fewer bugs!
• More flexibility in effect-size inputs
• More flexibility in model specification, including fractional designs, ``restricted model''

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