Modified Gambling Task
Running Head: MARIJUANA EFFETCS
Article Summary of Marijuana effects on a modified Gambling Task
Heather Frederick
Psychology 2017 LAB Section 6
September 17th, 2010
Introduction:
Previous studies on decision making abilities in people who are marijuana users on executive functioning has led researchers to believe that marijuana users have impaired decision making, but it is still not well understood. The experiment in this article aims at improving the current literature by observing direct effects of marijuana in double-blind controlled laboratory environment, while previous studies only had participants that had been abstinent from marijuana. The researchers’ hypothesis is that marijuana smokers will have a longer decision time, …show more content…
An ANOVA two-tailed analysis was performed to see the between-session effects on performance and planned comparison. The mean number of cards selected for the control group was 2.5, while the experimental group with 1.8% THC was 10, and the group with 3.9% THC was 3. The mean amount of time required to complete the task for the control group was -22 seconds, while the experimental group with 1.8% THC was -5 seconds, and the group with 3.9% THC was -6 seconds. The mean amount of net earnings for control group was -$2, while the experimental group with 1.8% THC was $2, and the group with 3.9% THC was similar to that of the 1.8% THC group. The data is not clearly represented in this article. The only data presented is a bar chart, and does not contain exact numbers which makes the findings difficult to understand. The results indicated that marijuana did not disrupt advantageous card selection or money earned on the modified Gambling task, but did have an effect on the time it took to complete the task. The sample size for the experimental was within reason for the experiment; however the study could be replicated to give more weight to the
Article Summary of Marijuana effects on a modified Gambling Task
Heather Frederick
Psychology 2017 LAB Section 6
September 17th, 2010
Introduction:
Previous studies on decision making abilities in people who are marijuana users on executive functioning has led researchers to believe that marijuana users have impaired decision making, but it is still not well understood. The experiment in this article aims at improving the current literature by observing direct effects of marijuana in double-blind controlled laboratory environment, while previous studies only had participants that had been abstinent from marijuana. The researchers’ hypothesis is that marijuana smokers will have a longer decision time, …show more content…
An ANOVA two-tailed analysis was performed to see the between-session effects on performance and planned comparison. The mean number of cards selected for the control group was 2.5, while the experimental group with 1.8% THC was 10, and the group with 3.9% THC was 3. The mean amount of time required to complete the task for the control group was -22 seconds, while the experimental group with 1.8% THC was -5 seconds, and the group with 3.9% THC was -6 seconds. The mean amount of net earnings for control group was -$2, while the experimental group with 1.8% THC was $2, and the group with 3.9% THC was similar to that of the 1.8% THC group. The data is not clearly represented in this article. The only data presented is a bar chart, and does not contain exact numbers which makes the findings difficult to understand. The results indicated that marijuana did not disrupt advantageous card selection or money earned on the modified Gambling task, but did have an effect on the time it took to complete the task. The sample size for the experimental was within reason for the experiment; however the study could be replicated to give more weight to the