psych stat responses

1. My assumption is that students who study for 3 hours get a higher test than students who study for 1 hour.

 

The independent variable is the student's learning, and the dependent variable is the result of the student in the test. 

 

If a student studies for 3 hours, then they are more likely to achieve higher scores on the exam than those who only study for 1 hour. Students who have more time to remember the information have a higher probability of passing the exam. Once the test starts, the student that only studied for one hour is more liekly to forget the information once the test has started.

2. Hypothesis: Caffeine consumption before exam can improve academic perfomance.

Independent variable: Caffeine consumption

Dependent variable:  Academic Test score

Caffeine is a stimulant that can affect the nervous system.Caffeine can make us more alert, energized, and even boosts memory function. All things that can prove beneficial to college students before taking an exam.

Group A- Would be given a cup of coffee before the exam.

Group B- Would not be given a cup of coffee before the exam.

Overall test scores between group A and B would provide evidence of whether or not caffeine intake before the exam is benficial. 

3. My hypothesis would be humidity doesn't affect a plant's growth. The independent variable would be humidity and the dependent variable would be the overall growth. Both groups of plants would be put in two seperate tempature controlled rooms and given food and water however, Group A would have humidity and Group B would not. Once a few weeks have passed, the final growth would either prove or disprove the hypothesis.

4. My hypothesis would be that students who get a “sufficient” amount of sleep at night before an exam will perform better on the exam than students who do not get enough sleep the night before.

In this experiment, the independent variable is the hours of sleep the student gets, and the dependent variable is how well the student performs on the exam.

To operationally define the variables, a “sufficient” amount of sleep would be at least 6 hours,and anything less than 6 hours would be deemed as insufficient. Performing “better” on the exam would mean that the scores of students who slept at least 6 hours the night before would be numerically higher than those students who slept less than 6 hours the night before.

5. For my experiment I will be usingg exercise and mental health. If a individual exercise daily it could help with their mental health, This would be used as the hypothesis. The independent variable is the exercise because they would be doing this by themselves. The dependent variable would be the mental health of the individual after the exercise.

6.

7. I would use 2 groups of 6 people in each, one group would exercise daily and the other group would not