2.  Randomly divide them into 2 groups: an experimental group and a control group. 

3.  Treat the two groups exactly alike, except that give the experimental group a slimming pill and give the control group a placebo, which is look similar to the slimming pill.

 4. Conduct the study double-blind. That is, make sure that neither the experimenter nor the subjects know which of the subjects is taking a slimming pill and which is getting the placebo, as well as one belief condition 

5. After  3 week ,  check for significance difference in the numbers of students from each group who get better result in slimming their body. If experimental group’s students getting slimmer compared to control group, it is reasonable to conclude that slimming pill help to slim the body.

Hypothesis: XXX brand of whitening body lotion can whiten the skin.

Procedures: 
1.      Randomly select a large number of people from the whole population.

2.      Randomly divide them into 2 group: an experimental group and a control group.

3.      Treat the two groups exactly alike, except that giving the XXX brand of whitening body lotion to the experimental group and a placebo which is an ordinary body lotion without any specific function to the control group.

4.      Conduct the study double-blind. Make sure that neither the scientists nor the subjects know which of the subjects is getting the whitening body lotion and which is getting the placebo.

5.      After a month, check to see if there is a statistically significant difference in the whiteness of the skin in two groups. If the skin of the experimental group becomes significantly whiter than the skin of the control group, it is reasonable to conclude that the XXX brand of whitening body lotion can whiten the skin.

 

Controlled Experiment : To investigate whether eating raisins before an examination helps improve memory. 

A group of 30 randomly selected students are divided into two groups of 15 students each. 

Hypothesis: Eating raisins before an examination helps improve memory. 

Procedures : 

1.       30 students are selected at random from a population of students. 

2.       The students are divided into two groups of 15 students each, one being the experimental group and the other, the controlled group. 

3.       The students in the experimental group are provided with a packet of raisins each and are required to consume it. 

4.       Students in the controlled group are given packets of brown colored jelly beans as placebo and are required to consume it. 

5.       As the study is conducted as double blind, neither the participants nor the main experimenter would know which students consumed the placebo and the raisins respectively. 

6.       The students are then required to sit for a memory test 5 minutes after they consumed the provided raisins and jelly beans. 

7.       Steps 1 to 6 are repeated with another group of 30 students to test the validity of the findings. 

 The hypothesis tested may be accepted if the experimental group scores higher in the memory test over several rounds of the experiment. 

The experimenters found that the use of different verbs affected the participants’ memories of the accident, showing that memory can be easily distorted.  Information gathered after the event can merge with original memory causing incorrect recall or reconstructive memory. Hence, the hypothesis is accepted.

Hypothesis: Drink AAA can help
a man to get taller.

Procedure:

1.      Randomly select a large number of people from the whole population.

2.      Randomly divide them into 2 group: an experimental group and a control group.

3.      Treat the two groups exactly alike, except that giving a bottle of AAA to the experimental group and a bottle of coke which is a normal soda drink without any specific function to the control group.

4.      Conduct the study double-blind. Make sure that neither the scientists nor the subjects know which of the subjects is drinking the AAA and which is drinking the normal soda drink.

5.      After a month, check to see if there is a statistically significant difference in the height in two groups. If the height  of the experimental group becomes significantly taller than the height of the control group. Therefore, it is reasonable to conclude that the AAA drinks can help a man to get taller.

2.  Randomly divide them into 2 groups: an experimental group and a control group. 

3.  Treat the two groups exactly alike, except that give the experimental group a toothpaste with the presence of mineral fluorine and give the control group a placebo, which is a toothpaste with the absence of mineral fluorine.

 4. Conduct the study double-blind. That is, make sure that neither the experimenter nor the subjects know which of the subjects is using a toothpaste with the mineral fluorine present and which is getting the placebo. 

5. After  3 weeks, perform a dental checkup for the whole group to see if the presence and absence of mineral fluorine in the toothpaste affects the rate to tooth decay. If experimental group’s students have less dental cavities compared to the control group, it is reasonable to conclude that mineral fluorine helps to prevent tooth decay.

Hypothesis is accepted, if conclusion proves to be true.

To investigate whether Vitamin C help to prevent illness.

Hypothesis:
Vitamin C prevent illness.

Procedure:
1.  Randomly select a large number of people from the whole population.

2.  Randomly divide them into 2 groups: an experimental group and a control group. 

3.  Treat the two groups exactly alike, except that you give the experimental group a placebo-that is,a sugar pill or some other know inactive substance.

4. Conduct the study double-blind. That is, you make sure that neither the experimenter nor the subjects know which of the subjects know which of the subjects is getting the vitamin C and which is getting the placebo. 

5.After 1 month, check to see if there is a statistically significant different in the frequency with which the two groups get illness .If the experimental group get significantly fewer fever than the control group ,it is reasonable to conclude that vitamin C does help prevent illness.

d = vi t + ½ a t2

 is used to calculate the acceleration due to gravity g. 

1) Place the small diameter ball in the apparatus at a height approximately .7 meters above the landing pad. Measure the actual distance from the bottom of the ball to the pad and record. 

2) Release the ball and record the drop time. Repeat 2 more times and calculate/record the average for that ball and height. 

3) Repeat the procedure at the same height with the large diameter ball, making sure to reset the timer after each drop. 

4) Repeat procedures 1-3 at heights approximately 1.3 meters and 1.7 meters, recording the actual measured heights and drop times in the appropriate locations. 

5) Calculate g for each height and each ball, for a total of 6 values. Record on the results table.

 6) Calculate an average g value from the six values, and calculate the percent discrepancy for this method from this average. Record this average g and its percent discrepancy in the separate results table.

To study the reaction of human when they face against cockroach which cannot fly and cockroach which can fly.

Hypothesis:

Human will be more fear when they face against cockroach which can fly

Procedure: 

1.       Prepare a cockroach which can fly and another which cannot

2.       Find 2 adult to contribute the experiment

3.       The first adult is put into an empty room with a cockroach which cannot fly

4.       The second adult is put into an empty room with a cockroach which can fly

Record and observe the reaction of the adult 

A controlled study: 

To investigate whether watching a horror movie before sleep will affect a person’s sleep quality at night. 

Problem statement: 

How does the horror movie affect human’s sleep quality? 

 

Hypothesis: 

A person who has watched a horror movie before sleep will suffer from a nightmare. 

 

Procedures: 

1.       Select 20 people from a large population randomly. 

2.       Divide them into 2 groups randomly. 

3.       The first group will be forced to watch “The Conjuring 2” right before they sleep. 

4.       The second group will be allowed to listen to the music right before they sleep. 

5.       Record whether they have suffered from nightmares or not on the following day. 

-          A study was handled to investigate whether enough sleep for a person can change their performance for a day. 

Hypothesis: 

-         Enough sleep for a person can make or change their performance better and more focussed. 

Procedure: 

1.      Find two students of MMU to contribute to this experiment. 

2.      Put one of the student to sleep about 7-8 hours. 

3.      Let the other student to be awake for the whole day. 

In the end, record and observe the performance of each student. 

 

Hypothesis: Memory can be improved by eating chocolate.

 

Procedure:

1) Randomly select a large number of people from the whole population.

2) Randomly divide them into two groups: an experimental group and a control group.

3) Treat two groups exactly alike, except you give the experimental group a bar of chocolates and you give the control group a brown colour jelly.

4) Conduct the study double-blind. That is, make sure that neither the scientist nor the subjects know which of the subjects is getting the chocolates and which is getting the jelly.

5) Provide two groups a same script and required them to memorize the script in 5 minutes. After 5 minutes, test both groups.

6) Check to see if there is a statistically significance difference in the accuracy of the memorized script. If experimental group gets a higher accuracy than the control group, it is reasonable to conclude that chocolate helps to improve memory.

To investigate the rate of the anger of a lady is having menstruation and a lady is not having menstruation.

When a lady is having menstruation , they easily get mad.

1.       Randomly find two ladies from the crowd ,which one having menstruation and another one not having menstruation.

2.       Plan a prank and tease the lady .

3.       Observe when does the lady start to get mad within 5 minutes . Record the time.

4.       Calculate the rate of anger by using this formula

          X s/ 300s

5.       Repeat steps 1-4 for a few times with different ladies , to get an accurate result.

Aim:
To investigate if air movement effects the rate of transpiration.
Hypothesis:
As the air movement increases, the rate of transpiration increases.
Procedure:
1)Photometer was immersed in water to remove air bubbles.
2)The capillary tube of the photometer was filled with water.
3)The branch of the plant was cut in the water.
4)The end of the branch was pushed through the hole of the rubber stopper underwater.
5)A beaker of water was placed at the end of the capillary tube.
6)The surface of the leaf and stem was wiped with tissue paper.
7)Vaseline was spread around every joint to ensure that they are airtight.
8)The photometer was left aside until the bubble in the capillary tube moves steadily.
9)Two points, P and Q of length 10 cm apart were marked on the capillary tube.
10)Time taken for the air bubble to move from P to Q was recorded in a room with the fan off.
11)The position of the air bubble was reset at point P after the experiment.
12)Steps 10 and 11 repeated twice and the mean time was calculated.
13)steps 10 to 12 were repeated by placing the photometer below a moving fan with the speed 2, 3 and 4.
14)Record all data in a table. 

Aim : To investigate whether students should have breakfast everyday.

Hypothesis : Students will be more happier, more concentrate in class and have a better performance after they having breakfast.

1.      Randomly select a number of people fromschool.

2.      Randomly divide them into two groups, an experimental group and a control group.

3.      Treat two groups exactly alike, except that let the experimental group to study without having breakfast and the control group have the breakfast before they go for the morning classes. 

4.      Conduct the study in the time before the morning classes.

5.      Check whether which group study more concentrate and have better performance in class, it is reasonable to conclude that breakfast is important for students.

To investigate how does the concentration of alcohol makes a person drunk.

 

The higher the concentration of alcohol, the more drunk the person is.

 

1. Organise a bachelor party and randomly choose 2 people (A and B).

2. Offer a glass of beer of different concentration to both of them.

3. After a while, offer A and B another glass of beer.

4. Repeat this step till A drinks 20 glasses of beer and B drinks 10 glasses of beer.

5.  Observe the changes in the behaviour of A and B.

6. Record the observation obtained at the end of the bachelor party.

Hypothesis: The longer the sleeping hours, the better the emotional temperament of the person is.

 Procedure:
1. Find a large group of people of various ages, and split them to 4 groups :Groups A, B, C and D.
2. Beginning with Group A, the sleep duration is at 6 hours per night, and the subsequently increase the sleeping hours for the remaining groups by 2 hours; Group B is allocated for 8 hours, Group C is allocated for 10 hours, and Group D is allocated for 12 hours.
 3. Observe the behavioural changes and differences, between the groups. Conduct the experiment for 2 weeks for optimum results.
 4. Compare the results with the result from the beginning of the experiment.
 5. If Group D has the best emotional temperament, hence the hypothesis is accepted.

To investigate whether corporal punishment destroy one’s self-esteem.

Corporal punishment will destroy one’s self-esteem.

1. Randomly select a number of students who accidentally do something wrongful.

2. Divide them into 2 groups which are experimental group and controlled group.

3. Treat both groups differently in which advice is given privately to the students in experimental group by the discipline teacher but students in controlled group is given corporal punishment where they may be asked to stand on the stage during the school assembly and scolded by the discipline teacher in front of everyone.

4. Observe and compare the changes (if there is/are) of students in both experimental group and controlled group. 

5. The hypothesis is accepted when the students in experimental group are still the same while the students in controlled group become inactive, unhappy, refuse to talk to others, afraid of doing something wrong and most importantly they avoid themselves from facing up with other people.

Hypothesis: The ability to delay gratification can be a predictor of future life success.

Procedure: 1. Randomly select 10 children between the ages of 4 to 6 and place them in a room with treat (chocolate).

2. Before leaving the room, the experimenter told each child that they would receive a second treat if the first treat was still on the table after 15 minutes.

3. After 15 minutes, divide the children into 2 groups, which are children that have the ability to wait for gratification (child with chocolate on the table) and without ability to wait for gratification (child that ate the chocolate).

4. Conduct follow-up studies on these two groups of children years later to determine their qualification in variety of areas, including their academic qualification.

Aim :To investigate whether the people will rely on the responses of others to guide their actions. 

Hypothesis: The people rely on the responses of others to guide their actions. 

The Procedure: 
1. Randomly select a group of participants and divide them into three condition . 

2. In first condition participant was alone, in second condition there were three unsuspecting participants in the room, and in the final condition there was one participant and two confederates who would ignore what would going on and went on their work. 

3.Require them  sitting in a room to fill out questionnaires. 

4. Fill the room with smoke out of a sudden. 

5. Observe the action conducted by participants. 

6.  If the first participant who was alone reported the smoke quickly while the participants in other condition report it slowly or even ignore it, the hypothesis is accepted. 

To investigate does shoe design really affect an athlete’s jumping height.

The shoe with the least weight, most flexibility and cushioning will be the easiest to jump off and get the highest vertical jumping.

1) Select 2 athletes with same gender and pick up 4 different types of shoes such as slippers, sport shoes, sandals and sneakers. Two of them will run and jump in 4 times by wearing these 4 different types of shoes.

2) First and foremost, all the athletes will be given 3 seconds to run and jump.

3) Athletes need to jump and let us record the jumping height with 4 different types of shoes.

4) Measure the jumping height and calculate the average height of 2 athletes in wearing different shoes.

5) Hypothesis will be accepted if the shoe with the least weight, most flexibility and cushioning get the highest vertical jumping.

 

Hypothesis: 
Human behaviour is largely based upon social imitation rather than inherited genetic factors.

  

Controlled variable:
Groups of children tested on

 

Manipulated variable:
Types of behaviour performed on the doll in the two different videos

 

Responding variable: 
Behaviours of the groups of children after watching the video

 

1) A group of children was selected at random and was sorted into two groups.

 

2) One group of children was exposed to a video of an adult showing aggressive behaviour towards a doll and another was exposed to a video of a passive adult playing with the doll.

 

3) Two groups of children were required to watch their assigned video in their respective rooms. 

 

4) They were then sent to a room with the same doll they had seen in the video group by group.

 

5) An observer then observed the behaviours of the two groups of children towards the doll and noted them down. 

 

6) If the group of children who were exposed to the aggressive adult exhibited aggressive behaviour towards the doll while another group who were exposed to the video of a passive adult playing with the doll did not perform any aggressive behaviour towards the doll, the hypothesis is accepted.

Aim : To investigate if eating chocolates can help improve one’s memory.

Hypothesis : Eating chocolates can help improve one’s memory. 

Procedure : 

1.)    40 students of the same age, 20, are selected randomly from a population of students in a particular university. 

2.)    The 40 students are divided into groups of 2, where one group will become the experimental group and another the controlled group.

3.)    Both groups are provided with the same reading materials for a memory test. 

4.)    The students in the experimental group are provided with a packet of chocolates and are required to consume it while reading the material provided. 

5.)    The students in the controlled group are provided with brown jelly beans, that has a look-alike to the packet of chocolates received by the experimental group and are also required to consume it while reading the material provided. 

6.)     All students in both groups are given an hour to read their material as well as to consume all of their chocolates and look – alike chocolates that were provided to them. 

7.)    After an hour, all students from both groups are required to sit for a test for 15 mins, which will test them on the material they read. 

8.)    Steps 1-7 are then repeated with a new set of students to attain more accurate results. 

Conclusion : Hypothesis is accepted if it is proven to be true. 

Hypothesis :
Consuming zinc supplements can help combat with acne and improve skin condition.

1.       Randomly select a few teenagers or adults who suffer from chronic acne (be it face acne, back acne or chest acne).

2.       Randomly divide the selected individuals into two groups : an experimental group and a control group.

3.       Treat both the groups equally alike, except that you give the experimental group a particular prescribed dosage of zinc supplements whilst the controlled group should be given a test substance or sugary pills (placebos) to replace the subject matter which is, of course the zinc supplements.

4.       Before the test subjects are given the supplements, photographs of the subjects’ current state of skin should be taken to observe any drastic changes in his/her skin condition once the experiment is done.

5.       The study shall then be conducted double blind in accordance with the fact that neither the scientists nor the test subjects know which of the subjects is getting the zinc supplements and which is getting the placebo.
6.       A thorough observation should then be conducted to check if there is a significant difference in the test subjects’ skin condition. This can be done by taking photographs of the subjects’ skin (areas prone to acne) once the experiment is over. If the skin condition of the test subjects from the experimental group shows positive changes / improvements after a detailed comparison with the control group, it is safe to assume and conclude that consuming zinc supplements do help combat with acne and improve skin condition. 

To investigate whether listening to soft music when studying can improve our memory or vice versa. 

Hypothesis: 

When listening to soft music can improve our memory. 

Procedures: 

1)      Select 10 students from different faculties randomly. 

2)      Separate students randomly into two groups with 5 group members each group. 

3)      Treat the two groups exactly alike, except that you give the experimental group the soft music and the rock music with non speficically function to control group. 

4)      Conduct the study double-blind. Make sure that neither scientist or the subject is getting the soft music and which is getting the rock music. 

5)      After a month of listening to music while studying, check to see if there is a statistically significant difference in the memory between both of group. If the memory of the experimental group become significantly better than the control group, it is reasonable to conclude that the listening soft music can improve our memory when studying. 

To investigate whether masturbation can help us to release stress in our daily life or vice versa.

Hypothesis:

Masturbation cannot help us to release stress in our daily life.

Procedure:

1.       Select 10 male students randomly from different faculties in Multimedia University Melaka before 2 weeks of their final examination.

2.       Divide students randomly into two groups with 5 groups members each group.

3.       One group which is experimental group will bring to a room separately to masturbate.

4.       The other group which is controlled group will bring to a room for their study purposes .

5.       After 2 days , observe and record their emotions and feelings in both groups. The result shows that students who undergo masturbation feel stress which is similar to the controlled group .

Hypothesis is accepted. 

 

Hypothesis: Sleeping for 20 minutes after lunch can improve your ability to focus in class.

 

1. Randomly select 10 MMU students.

2.Randomly divide them into 2 groups: an experimental group and a control group.

3.Treat the two groups equally, except that the experimental group which is required to sleep for 20 minutes after lunch. 

4.Conduct the study double-blind to make sure that neither the experimenter nor the subject know about the experiment.

5. Every day, after lunch experimental group is required to sleep for 20 minutes and the control group is required to keep on studying.

6. After 1 week, combine the result for all subjects. If the group that sleeps 20 minutes after lunch have a better focus in class, then it can be concluded that the sleeping for 20 minutes after lunch can improve your ability to focus in class. If the result from the both group are same or the group that keep on studying after lunch are better, the hypothesis is rejected.

Hypothesis: When you set out to spread laughter, you're also spreading joy, happiness, and love for other people.

 

Procedure:

 1. Randomly select a crowded area in Multimedia University. 

 2. One student will laugh loudly in front of them for 5 minutes.
 
 3. Result shows that half and above of the public smile, laugh and feel happy.
 
 4. The hypothesis is accepted.