Question Question 4 One of the other researchers in your group investigated the effect of caffeine on a person’s reaction time. The researcher used the following steps. 1. The researcher held a ruler just above a volunteer’s hand, as shown in Diagram 1.2. The researcher let go of the ruler. The volunteer caught it as soon as possible, as shown in diagram 2. 3. The experiment was repeated seven more times. 4. The volunteer then drank a cup of strong coffee. Coffee contains caffeine. 5. Fifteen minutes after drinking the coffee the researcher repeated steps 1 to 3. Table 1 and Table 2 on the next page show the researcher’s results. Diagram 1 – Ruler 4 cmDiagram 2 – Ruler has fallen to 8 cmAnalyze these results and use the data to write a justified conclusion about how caffeine affects reactions times and why. Table 1Distance ruler fell before it was caught in cmBefore drinking coffee1821251519161221Table 2Distance ruler fell before it was caught in cmAfter drinking coffee813111710141313You need to explain how reliable your conclusion is and suggest at least two improvements that could be made to this experiment in order to make the outcomes more reliable. Your answer to this question must not exceed 500 words. Health Science Science Nursing NURSING QAA Share QuestionEmailCopy link Comments (0)

Question Question 4 One of the other researchers in your group investigated the effect of caffeine on a person’s reaction time. The researcher used the following steps. 1. The researcher held a ruler just above a volunteer’s hand, as shown in Diagram 1.2. The researcher let go of the ruler. The volunteer caught it as soon as possible, as shown in diagram 2. 3. The experiment was repeated seven more times. 4. The volunteer then drank a cup of strong coffee. Coffee contains caffeine. 5. Fifteen minutes after drinking the coffee the researcher repeated steps 1 to 3. Table 1 and Table 2 on the next page show the researcher’s results. Diagram 1 – Ruler 4 cmDiagram 2 – Ruler has fallen to 8 cmAnalyze these results and use the data to write a justified conclusion about how caffeine affects reactions times and why. Table 1Distance ruler fell before it was caught in cmBefore drinking coffee1821251519161221Table 2Distance ruler fell before it was caught in cmAfter drinking coffee813111710141313You need to explain how reliable your conclusion is and suggest at least two improvements that could be made to this experiment in order to make the outcomes more reliable. Your answer to this question must not exceed 500 words. Health Science Science Nursing NURSING QAA Share QuestionEmailCopy link Comments (0)