Or do you just mean you have a variable you wish to multiple by a constant of 2? If you want the latter, then: COMPUTE var2 = var1 * 2. EXECUTE. Where "var2" is the name of the new column/variable you want to create with the new values (never delete or overwrite existing data - always make a new column just for safe measure!). How can I replace missing values in SPSS with the mean of a number of items? ... Feel free to change it to a more appropriate value. ... When i tried multiple imputation (followed Youtube videos ... values are numeric values that need to be defined as missing for SPSS. You might notice that some of the reaction times are -9 in the data below. You may use any value you choose to stand for a missing value, but be careful that you don’t choose a value for missing that already exists for the variable in the data set. However, default each variable in SPSS is set to having "no missing values". In variable view, you have to define "999" as being the "discrete missing value" for each variable. With hundreds of variables though, this is a lot of work: "Duplicate" cases may occur in your data for many reasons, including: Data entry errors in which the same case is accidentally entered more than once. Multiple cases share a common primary ID value but have different secondary ID values, such as family members who all live in the same house.

How to recode data in SPSS Sometimes it’s necessary to change several values in your data set. For example, if you have questionnaire data which includes reverse-scored questions. The following instructions show you to recode data for this purpose in SPSS. 1. Feb 26, 2016 · This video demonstrates how to use the Find and Replace feature in SPSS. The search parameters of this feature are reviewed including: match case, contains, entire cell, begins with, and ends with. Written and illustrated tutorials for the statistical software SPSS. Variable definitions include a variable's name, type, label, formatting, role, and other attributes. This tutorial shows how to define variable properties in SPSS, especially custom missing values and value labels for categorical variables. values are numeric values that need to be defined as missing for SPSS. You might notice that some of the reaction times are -9 in the data below. You may use any value you choose to stand for a missing value, but be careful that you don’t choose a value for missing that already exists for the variable in the data set. use of SPSS to do advanced data manipulation such as splitting files for analyses, merging two files, aggregating datasets, and combining multiple tables in a database into an SPSS dataset in the first section. Several advanced topics are included in the second section, including the use of SPSS syntax, the SPSS Visual Basic editor, and SPSS ... Interpret the p-values for the change across time for all study participants and the interaction between the "fixed" and "random" effects that are in the Greenhouse-Geisser row. If the p -value is LESS THAN .05 , then researchers have evidence of a significant main effect.

With multiple regression you again need the R-squared value, but you also need to report the influence of each predictor. This is often done by giving the standardised coefficient, Beta (it's in the SPSS output table) as well as the p-value for each predictor.

Nov 05, 2015 · This video demonstrates how to enter multiple response items into SPSS. A survey item that allows participants to “check all that apply” is used to explain how to enter the data using ... Recoding Variables in SPSS Statistics Introduction. The instructions below will show you how to recode variables. You can use recoding to produce different values or codes for a variable. Recoding can be done in one of two ways: Recoding into the same variable; Recoding into a different variable Nov 05, 2015 · This video demonstrates how to enter multiple response items into SPSS. A survey item that allows participants to “check all that apply” is used to explain how to enter the data using ... Two-Way ANOVA in SPSS STAT 314 Preliminary research on the production of imitation pearls entailed studying the effect of the number of coats of a special lacquer applied to an opalescent plastic bead used as the base of the pearl on the market value of the pearl. Four batches of beads (12 beads per batch) were used in Research Skills 1: Using SPSS 20: Handout 3, Producing graphs: Page 7: Often you will find that the data make more sense plotted one way round than the other, depending on the questions that you want to answer. Here, I think the first graph makes the age pattern more obvious, whereas the second graph makes it a little easier to compare males and With multiple regression you again need the R-squared value, but you also need to report the influence of each predictor. This is often done by giving the standardised coefficient, Beta (it's in the SPSS output table) as well as the p-value for each predictor.

How to recode data in SPSS Sometimes it’s necessary to change several values in your data set. For example, if you have questionnaire data which includes reverse-scored questions. The following instructions show you to recode data for this purpose in SPSS. 1. of the variable if it were categorical, as well as define missing values for the variables if missing values were present in the dataset In this dataset, there are no missing values; however, to specify missing value, click on one of the variables in the "Missing" column. A new dialogue box will appear

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Overall Model Fit. b. Model – SPSS allows you to specify multiple models in a single regression command. This tells you the number of the model being reported. c. R – R is the square root of R-Squared and is the correlation between the observed and predicted values of dependent variable.

How to change multiple values in spss

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Sep 18, 2016 · Step 7: Compare the result from the HB formula in Step 6 to the third-ranked p-value: Third ranked p-value, in Step 1 (H 3 = 0.03) > Alpha level in Step 6 (.025). The p-value of .03 is greater than .025, so the null hypothesis for H 3 is not rejected. The testing stops when you reach the first non-rejected hypothesis. SPSS offers two choices under the recode command: Into Same Variable and Into Different Variables. The command Into Same Variable replaces existing data with new values, but the command Into Different Variables adds a new variable to the data set. In almost every situation, you want to use Into Different Variables. Mar 09, 2007 · This Site Might Help You. RE: How to interpret negative standardized coefficient or beta coefficient? I need help with my multiple regression. After running my data through the spss, I got a set of results where some beta coefficient values are actually negative. Keep in mind that it is only safe to interpret regression results within the observation space of your data. In this case, the height and weight data were collected from middle-school girls and range from 1.3 m to 1.7 m. Consequently, we can’t shift along the line by a full meter for these data. Or can you? Remember, in the multiple regression model, the coefficient of height was , had a t-ratio of , and had a very small P-value. So it did contribute to the multiple regression model. How could that be? The answer is that the multiple regression coefficient of height takes account of the other predictor, waist size, in the regression model. Feb 21, 2018 · In SPSS you will find two tabs in down left of the screen named “Data view” and “Variable view”. Click on Variable view. Now you will find a column named “Name”. In that column find which variable you want to rename. double click on that variable and rename it.