Research Methods in Psychology - Data review The purpose of this assignment is to assess your ability to understand and interpret flaws in design, methodology, results and drawing conclusions from a...

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Answered 11 days AfterMay 24, 2021

Answer To: Research Methods in Psychology - Data review The purpose of this assignment is to assess your...

Aimy answered on Jun 04 2021
149 Votes
Review
Method
On page 3 under the section of methods it is given that 50 as the participants but in brackets it is given as 30 boys and 30 girls, so we could say that there is no clarification in the no of participants given. When we consider the SPSS data it has only a sample of 40 participants which is about 20 girls and 20 boys, which is again a contradiction. Finally, we could come to the conclusion that there are 40 participants which contains 20 girls and 2
0 boys.
    Case Processing Summary
    
    Cases
    
    Valid
    Missing
    Total
    
    N
    Percent
    N
    Percent
    N
    Percent
    Sex * Age
    40
    100.0%
    0
    0.0%
    40
    100.0%
On page 3 under section of methods in line 5 it is given that no informed consent or parental consent was obtained it is against the rules of data collection, it is important to have the informed consent from the person or from the closest person to avoid future problems. It is also said that the participation was compulsory to the students and will be punished if not participated, it is not correct because it’s our own wish to participate in a study or not.
In the second paragraph under the section of method it is given about the mean age group of the total sample size it is given as 15.4 years and SD 1.5 years and for boys its 15.6 years with SD 1.6 years and for girls 13.5 years with SD 1.2 years. It is also said that it is statistically significant but from the table below given we could see that it is not statistically significant since the p-value is not less than 0.05.
It is also clear that the mean age group is 13.62 years with SD 0.88 years and for boys the mean age group is13.59 years with SD 0.81 years, for girls the mean age group is 13.65 years with SD 0.95 years the data of SPSS outputs are given below. The data’s are assessed using Chi square test ().
    Descriptive Statistics
    
    N
    Minimum
    Maximum
    Mean
    Std. Deviation
    Age
    40
    12.00
    15.25
    13.6188
    .87521
    Valid N (listwise)
    40
    
    
    
    
    Statistics
    Male
    N
    Valid
    20
    
    Missing
    20
    Mean
    13.5875
    Std. Deviation
    .81222
    Statistics
    Female
    N
    Valid
    20
    
    Missing
    20
    Mean
    13.6500
    Std. Deviation
    .95422
    Chi-Square Tests
    
    Value
    df
    Asymptotic Significance (2-sided)
    Pearson Chi-Square
    12.200a
    13
    .511
    Likelihood Ratio
    16.130
    13
    .242
    Linear-by-Linear Association
    .051
    1
    .821
    N of Valid Cases
    40
    
    
Materials and Procedure
In the first paragraph in the last lines it says about some scoring pattern conducted in the study but no data’s regarding them are given in the SPSS file or description regarding the scoring is given in the manuscript so it is not clear that how it is said that the psychometric properties are well established.
The second paragraph says about the measurements like weight and height and how they measured, the method which the measures are taken not in the correct manner or not adequate. It is saying that the measurements are taken by the students itself it may lead to wrong measurements and the BMI is also calculated by the students as part of mathematics exercise which are not the standard measures and are done by the students so errors may occur.
Results
In the second line of result section, it is said that there are seven variables and they are coded but below that we could only see five variables like Sex, Total amount of tablet hours over the previous week, Height in meters, Weight in Kilograms, BMI. When we go through the SPSS file, we can see 6 variables which is again a contradiction. So, it should be given as there are 6 variables and they are Sex, Age, Total amount of tablet hours over the previous week, Height in meters, Weight in Kilograms, BMI.
    Tests of Normality
    
    Kolmogorov-Smirnova
    Shapiro-Wilk
    
    Statistic
    df
    Sig.
    Statistic
    df
    Sig.
    Age
    .096
    40
    .200*
    .970
    40
    .349
    Height
    .112
    40
    .200*
    .968
    40
    .300
    Weight
    .130
    40
    .085
    .960
    40
    .166
    Tablet Hours
    .091
    40
    .200*
    .962
    40
    .193
    Body Mass Index
    .107
    40
    .200*
    .974
    40
    .488
In the second paragraph under this session, it is given that all the variables exhibited high level of positive and negative skew with p-value= 0.00 for all normality test, from the above given table it is clear that none of the p-values are equal to 0.00.
    Tests of Normality
    
    Sex
    Kolmogorov-Smirnova
    Shapiro-Wilk
    
    
    Statistic
    df
    Sig.
    Statistic
    df
    Sig.
    Weight
    Male
    .235
    20
    .005
    .902
    20
    .045
    
    Female
    .150
    20
    .200*
    .962
    20
    .586
    Tablet Hours
    Male
    .125
    20
    .200*
    .949
    20
    .351
    
    Female
    .170
    20
    .133
    .922
    20
    .109
    Body Mass...
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