Exam 4: The Ibm Spss Statistics Environment

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Is a variable name shorter or longer than a variable label?

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A

Take the formula Z = (X - µ)/σ,where µ is the mean of the population,X is the value of the element,Z is the z-score and σ is the standard deviation.What does this formula calculate?

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The central limit theorem requires a large number of samples to be taken before inferences about population/distribution can be drawn.

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Calculate the sample standard deviation using the following data: 4,5,2,6,4,3,4

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A t-test is?

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What kind of variables would you crosstabulate?

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In SPSS,what is the data view window?

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You are asked to undertake a 2 × 2 study (treatment group × age)with pre- and post-test measures on the outcome variable.If including a column to identify case number,how many columns are required when inputting the data into SPSS?

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A researcher is doing a study of peer groups in junior schools.They interview 5 boys and 5 girls.It is a grounded theory study.What type of codes are generated when scanning the transcriptions?

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It is necessary to calculate an estimate of the standard error of the proportion (SP)before what can be constructed?

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You have been asked to study A-level students' feelings about taking multiple choice tests.One of the categories of codes involves positive affect,which is subdivided into two subcategories of feeling of pleasure when getting an answer right,and banging their fist on the desk when finished.The relation between these subcategories and the overall category of positive affect is?

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The standard deviation is the most valuable measure of spread or dispersion.

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The process of marking segments of data with symbols,descriptive words,or category names is known as concurring.

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In relationships between coding categories,the relation,'X is a place in Y; X is part of Y' in Spradley's taxonomy of semantic relations is labelled spatial.

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With the above study,the outcome variables are interval-scaled.Which descriptive statistics would need to be provided?

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Why is it recommended to screen data prior to analysis?

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When using Excel,using the $ symbol in front of the row and column designation indicates?

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Which of these variables would require coding prior to data entry?

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Initial statistical analysis can be performed on data using software packages such as Excel.Which of the following is a formula for calculating the standard deviation in particular cells?

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The formula P ± Zc.l.SP represents what?

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