SPSS Assignment - Psychology

Suppose a researcher was interested in studying the differences between males and females in SMS text messaging usage. To test whether there was a difference in text messaging between genders; the researcher took a random sample of 100 students at State University Tech (50 males and 50 females). 

He provided these students with a survey that asked questions such as 1) do you have a cell phone; 2) do you have a plan that includes text messaging, 3) are you limited in the number of text messages you can sent per month, etc. After getting this information, the researcher excluded participants that did not have cell phones, did not have plans that allowed for text messaging, and those people with plans that limited the number of text messages.

 He did this to control as many variables as he could as to not confound (mess up) his experiment. After weeding out participants, his final sample consisted of 25 females and 25 males (N = 50).

To begin the experiment the researcher asked each participant to count the number of text messages they send for 4 weeks (1 month). This was the researcher’s dependent variable. He received the information from each participant and placed the data into SPSS. The data are on blackboard under “Assignments” under the file name test message data for SPSS assignment. Use SPSS to calculate the appropriate statistical test for the given data set. Write up your results as you would in a scientific, peer-reviewed journal. The write up should be in APA format and include, at least, the obtained value, the significance level, and the interpretation of the significance level.


T-TEST 

Assume an experimenter is interested in determining the effects of an early intervention program on the overall verbal skills of a group of underprivileged children. The experimenter randomly assigns children into one of two groups: aggressive, early intervention, and passive, early intervention. After being on the program for six months, the children are administered an achievement test. Now you must determine if there is a difference between the results of the two intervention programs based on achievement test scores. Further, you must decide which intervention led to higher scores (if there was a difference between the interventions). The data are on blackboard under “Assignments” under the file name achievement test scores for SPSS assignment.

Use SPSS to calculate the appropriate statistical test for the given data set. Write up your results as you would in a scientific, peer-reviewed journal. The write up should be in APA format and include, at least, the obtained value, the significance level, and the interpretation of the significance level.

CORRELATION 

A researcher wishes to test part of the Addictive Personality theory, that individuals addicted in one area tend to be addicted in other areas. Specifically, the researcher wants to find out if there is a relationship between alcohol abuse and gambling abuse among persons incarcerated for substance abuse. A random sample of 10 male inmates from Ruston Parish correction center is selected from the population of inmates serving time for substance abuse. Each man is tested on two major addiction scales, Substance Abuse Subtle Screening Inventory and the Gambling addiction Index (GAI). Higher scores indicate greater addiction. The data are on blackboard under “Assignments” under the file name addiction data for SPSS assignment. Use SPSS to calculate the appropriate statistical test for the given data set. Write up your results as you would in a scientific, peer-reviewed journal. The write up should be in APA format and include, at least, the obtained value, the significance level, and the interpretation of the significance level.

ANOVA 

A researcher is interested in whether a significant trend exists regarding the popularity of certain work shifts among police officers in. A random sample of 16 uniformed officers was selected from a large metropolitan police force. The officers are asked to use a scale to score how much they liked working each shift (1-10 scale with higher numbers meaning they enjoyed working that shift more). 
The shift choices were the morning shift (1st shift), the afternoon shift (2nd shift), and the late night shift (3rd shift). Further, the experimenter wanted to find out if time spent on the police force influenced scores. Hence, the researcher separated the officers into two groups: veterans and novices. The researchers question: is there a difference in shift preference, if so, which shift is preferred? Is there a difference between the veteran officers’ preference of shifts and the novice officers’ preference of shifts? The data are on blackboard under “Assignments” under the file name police data for SPSS assignment. Use SPSS to calculate the appropriate statistical test for the given data set. Write up your results as you would in a scientific, peer-reviewed journal. The write up should be in APA format and include, at least, the obtained value, the significance level, and the interpretation of the significance level.

Pay attention to the following instructions:
Directions: Read the following summaries and conduct the appropriate statistics using SPSS. Write up your results as you would in a peer-reviewed journal.

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