Hypothesis- Testing Research Studies
• Hypothesis-tested research studies (experimental studies) are those where the researcher tests the hypothesis of casual relationship between variables.
• Such studies require procedures that will not only reduce bias and increase reliability, but will permit drawing inferences about casuality.
• Professor R.A. Fisher begun such designs when he was working at Rothamsted Experimental Station (Centre for Agricultural Research in England).
• Professor Fischer found that by dividing agricultural fields or plots into different blocks and then by conducting experiments in each of these blocks, the information collected and inferences drawn happen to be more reliable.
• This fact inspired him to develop certain experimental designs for testing hypotheses concerning scientific investigation.
• Hypothesis-tested research studies (experimental studies) are those where the researcher tests the hypothesis of casual relationship between variables.
• Such studies require procedures that will not only reduce bias and increase reliability, but will permit drawing inferences about casuality.
• Professor R.A. Fisher begun such designs when he was working at Rothamsted Experimental Station (Centre for Agricultural Research in England).
• Professor Fischer found that by dividing agricultural fields or plots into different blocks and then by conducting experiments in each of these blocks, the information collected and inferences drawn happen to be more reliable.
• This fact inspired him to develop certain experimental designs for testing hypotheses concerning scientific investigation.