According to Cohen's d conventions, which of the following would be considered to be a medium...
According to Cohen's conventions, an r2 of .14 would represent a ? (A) small effect (B) medium effect (C) large effect (D) none of the above , as there are no standards for interpreting r2
4. According to Cohen's conventions, an R2 of 0.19 is considered to be a(n) ________ effect size. Select one: A. large B. erroneous C. medium D. small 5.f between-groups variance is much larger than within-groups variance, we infer that the sample means are ________ one another, and we ________ the null hypothesis. Select one: A. similar to; reject B. different from; reject C. different from; fail to reject D. similar to; fail to reject 6. Identify the correct formula for...
Which of the following is NOT a measure of effect size? a. Cohen's d ob.q c.n2 d. p2
7. Effect size - Cohen's d and r squared Aa Aa E An industrial/organizational psychologist has been consulting with a company that runs weekend job-seeking workshops for the unemployed. She collected data on several issues related to these workshops and, after conducting statistical tests, obtained statistically significant findings. She needs to find a way to evaluate effect size so that she can make recommendations to the company. One of the psychologist's findings is that 1 year after the workshop, a...
2. According to Cohen's (1988) guidelines, an r of -0.56 would be considered a correlation 3. If two variables are correlated people who have low scores on one variable will tend to have low scores on the other variable. 4. Calculating a correlation coefficient is only appropriate when there is a relation between two variables. 5. A correlation value of would indicate that there was no association between the two variables. 6. regression enables one to predict an individual's score...
Dr. Fowler calculates a Cohen's d of 1.21. How should she describe this effect size? Impossible. The largest value for Cohen's d is 1. Large Small Medium
For each of the situations below, calculate both the r-squared and the Cohen's d measure of effect size and specify whether each is a "small", "medium", or "large" size. See module slides from 21 on for guidance. a. df 12, t-2.07 b. df 24, t 1.90 c. df-24, t-2.51 d. df-63, t-2.96 e. df-32, t=1.31
11. Effect size and Cohen's d Aa Aa Suppose a researcher is trying to understand whether people who purchase fast-food hamburgers would be willing to pay more if the hamburger comes with a free cookie. Prior research suggests the mean amount customers say they are willing to pay for a hamburger is -4.14 and ơ-1.40 The researcher plans to conduct a study very similar to the prior research by selecting a sample of customers and asking them how much they...
need help with the last 2 questions (cohen's d and compute proportion of variance usimg omega - squared) regard to the SPSS exercise, answer the following questions used on the SPSS output, state the following values:(0.5 point) Sample size Sample mean Sample standard deviation Estimated standard error 20 -.1989 1.29345 21558 Based on the table shown in SPSS, state the following values associated with the test statistie: (0.5 point) Mean difference 4.42889 I obtained (1) -6.675 Degrees of freedom (d)...
A culture medium consisting solely of dextrose and inorganic salts would be considered a ____________ medium. a. complete b. differential c. complex d. minimal e. selective