GradePack

    • Home
    • Blog
Skip to content
bg
bg
bg
bg

Author Archives: Anonymous

A researcher examined the body mass index (BMI) of 1000 rand…

A researcher examined the body mass index (BMI) of 1000 randomly selected undergraduates from USF and found a mean of 25. If the median BMI was 18, what would you conclude about the shape of the distribution of BMI scores?

Read Details

A researcher measured body mass (BM) for 100 undergraduates….

A researcher measured body mass (BM) for 100 undergraduates. The mean BM was 20 (SD=4). What would a person’s z-score be if the person had a body mass of 12?

Read Details

Extra Credit – No Penalty for Trying Suppose a researcher co…

Extra Credit – No Penalty for Trying Suppose a researcher compares 4 groups (Freshmen, Sophomores, Juniors, Seniors) on the average number of steps taken per day, and finds an overall significant F-ratio. What is the logic of using post hoc methods like the Tukey method or Bonferroni method in making pairwise comparisons (why are these special methods needed)?

Read Details

A researcher was interested in comparing 3 group conditions:…

A researcher was interested in comparing 3 group conditions: Meditation, Progressive Relaxation, and a Control condition on heart rate. 28 freshmen undergraduates from USF were randomly selected.  From these 28 students, 13 were randomized to the Control Condition, 8 were randomly assigned to Meditation, and 7 were randomly assigned to Progressive Relaxation. What statistical technique would be used in this study?

Read Details

A researcher was interested in comparing 3 group conditions:…

A researcher was interested in comparing 3 group conditions: Meditation, Progressive Relaxation, and a Control condition on heart rate. 28 freshmen undergraduates from USF were randomly selected.  From these 28 students, 13 were randomized to the Control Condition, 8 were randomly assigned to Meditation, and 7 were randomly assigned to Progressive Relaxation. What would be the degrees of freedom for: Between groups df = _____  

Read Details

For an independent samples t-test, list the 3 assumptions un…

For an independent samples t-test, list the 3 assumptions underlying the statistical test.

Read Details

A researcher was interested in comparing the number of campu…

A researcher was interested in comparing the number of campus recreation visits during the semester for STEM/Science undergraduate majors versus non-STEM/Science undergraduate majors. From a computer database that had divided the undergraduate population into STEM/Science undergraduate majors and non-STEM/Science undergraduate major, the researcher randomly selected 100 STEM/Science undergraduate majors and randomly selected 100 non-STEM/Science undergraduate majors, and then obtained data records for the number of campus recreation visits during the Fall term. How many degrees of freedom would this statistical test have?

Read Details

What type of hypothesis is the following: VO2 Max is not rel…

What type of hypothesis is the following: VO2 Max is not related to Running speed.

Read Details

Extra Credit – No Penalty for Trying If a researcher has a n…

Extra Credit – No Penalty for Trying If a researcher has a nominal/categorical variable like Sport Participated In (Swimming, Basketball, Track, Soccer), what is meant when a researcher creates “dummy variables” to represent this variable?  What is a dummy variable?

Read Details

A researcher was interested in evaluating an intervention th…

A researcher was interested in evaluating an intervention that would impact body mass. The researcher was also interested in evaluating if there were sex differences in body mass. The researcher recruited 10 males and 10 females for the study. For the 10 males, 5 males were randomly assigned to the intervention and 5 males were randomly assigned to a control condition. Similarly, for the 10 females, 5 females were randomly assigned to the intervention and 5 females were randomly assigned to a control condition. Based on the information provided, what statistical technique produced the table above?

Read Details

Posts pagination

Newer posts 1 … 37,464 37,465 37,466 37,467 37,468 … 76,852 Older posts

GradePack

  • Privacy Policy
  • Terms of Service
Top