Evaluating Research Reliability Across Samples
Dr. Ramos conducted a study and found that 30 minutes of morning exercise increased participants' productivity. Several months later, Dr. Hughes replicated the study with a different sample of participants and found no difference in productivity between those who exercised and those who did not. These findings indicate that the original study was:
ANot reliable across samples.
BReliable across time.
CNot reliable across time.
DReliable across samples.
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