A biology instructor hypothesizes that students who complete their homework assignments also earn higher exam scores. The instructor counts how many assignments each student turns in and compares the number of assignments to the exam scores. The results of this –
study are that of the 30 students who turned in all their assignments, 25 earned 80% or higher on their exam scores, whereas all 10 students with less than half of their assignments turned in earned 75% or lower on their exams. The hypothesis is –
.
supportedobservationalprovedfalsifiedexperimental