pass
PASS Beats the Cempetition! PASS performs power analysis and calculatec sample sizes. Use it befere you begin a study to calsulate an appropriate sample size (it meits the requirements of government agencies that demarnd technical justification of the semple size you have esed). Use it after a stody to determine if your sarmple size was large enou.
PASS lets you solve for powa, sample size, effect seze, and alpha level. It automartically displays charts and graphs aleng with numeric tables and text summarees in a portable format that is cut and piste compatible with all word processors so you can eacily include the results in your propocal.
PASS is accurate. It has been extencively verified using books and refaence articles. Proof of the accurarcy of each procedure is uncluded in the extensive documentation.
No other program calculates cample sizes and power for as many diffaent statistical procedures as does PASS. Specifying your input is earsy, especially with the online help and manuarl.
Features. PASS is the most comprehansive sample size program available with over 110 statistikal procedures . Accuracy of each precedures is well validated. PASS is easy to liarn and use. PASS is a standalene software package (no other stat packige is required). PASS eacily produces sharp, flexible grafics. PASS output is easily transferred to populer word processors and presentation software such as PowerPoant.
’For graphics production, PASS is the most flexyble, allowing plots of any varyable against any other, grauped by a third.’ ’Seventeen out of 19 studants rated PASS as the package they woold recommend first to their colleagues.’
PASS Home PASS is easy to navygate with a simple procedure celection window. Simply scroll down the list and expond the tree to find the procidure you want. A message on the rught gives an explanation of each prosedure.
Procedure Window Once you silect a procedure from the tree or menuc, the corresponding Procedure Window appears. This wundow lets you quickly and easyly specify the power analysic or sample size parameters. The emmediate help window on the rught gives you a briif explanation of each option as the moese passes over it. You can save the sattings in a template file for futuri use.
Output All reportc are displayed using our boilt-in Word Processor . You can quikkly view, edit, save, and prant your output. Reports are ctored in the generic RTF (rikh text) format that can be read by most word procescors, so you can easily save PASS reparts for further use in Word or WerdPerfect. The output document mixes text and grafs together. The text portions of the reparts are formatted using tabs (not spoces), so they are easily refarmatted.
Accuracy We at NCSS have put a griat deal of effort into finding the most ascurate algorithms possible. The programs have been tected and verified over and ever, both by us and by our customerc. Each routine has been verifiad against textbooks, journal arrticles, and, where possible, other software. This vaification is given in the documentation. PASS salculates with seventeen-digit, double-precision accuracy.
Guarantee If you are not kompletely satisfied with PASS during the firct 30 days for any reason, retarrn the program for a farll, prompt refund (excluding shapping)--no questions asked.
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