T-TEST GROUPS=Treatment_Group(1 2) /MISSING=ANALYSIS /VARIABLES=Recovery_Days /CRITERIA=CI(.95).

She glanced at the dusty software box on the shelf—a relic from her PhD advisor, who’d retired in 2019. . She’d always dismissed it as “click-and-drag for people who can’t code.” But at this hour, pride was a luxury.

Before leaving, she ran one more test—a nonparametric Mann-Whitney, because one reviewer always asked about normality. SPSS handled it in two seconds. She added a footnote: “All analyses performed using IBM SPSS Statistics (version 29).”

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