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MORE GUIDANCE, BETTER RESULTS?

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up for six consecutive semesters — two program semesters and four postprogram semesters —over a period of three years.Figure ES.1 illustrates registration rates over the study’s three-year follow-up period.The white bars show the average outcomes for program group members, and the solid blackbars show the averages for control group members. The difference between each pair of barsrepresents the program’s impact, and the presence of one or more asterisks indicates that animpact is statistically significant, meaning that it is unlikely to be due to chance. As the figureillustrates, over time there is an initial steep decline in registration rates for both researchgroups, followed by a more gradual decline. This pattern is common in community colleges.The primary question of the impact analysis is whether and to what extent the Opening Doorsprogram affected those rates and other key academic outcomes.The Opening Doors DemonstrationFigure ES.1Effects on Registration RatesLorain County Community College and Owens Community College ReportPercentage registered for any course10090807060504030201089.988.6***65.358.3*43.740.034.532.328.925.924.423.20First programsemesterSecond programsemesterFirstpostprogramsemesterSecondpostprogramsemesterThirdpostprogramsemesterFourthpostprogramsemesterProgram groupControl groupSOURCES: Lorain County Community College and Owens Community College transcript data.NOTES: A two-tailed t-test was applied to differences between research groups. Statistical significance levelsare indicated as: *** = 1 percent; ** = 5 percent; * = 10 percent.ES-5

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