A researcher was interested in examining the effects of the amount of caffeine intake during the day on the quality of participants’ sleep quality of 50 male, sophomores at USF who were randomly selected. Quality of sleep was measured using an actigraphy and amount of caffeine was measured using a self-reported food diary. What effect would using 50 male, sophomores at USF have on internal validity?

A researcher examined the stress levels of undergraduate students once a day for 7 consecutive days. What type of variable is days?

What is a meta-analysis?

If the researcher evaluated the measurement quality of the actigraphy by correlating the scores from the actigraphy (score range = 0 to 100 with higher scores representing higher quality) to the scores from the polysomnography (score range = 1.5 to 8.5 with higher scores representing higher quality), the gold standard used to measure sleep quality, what type of measurement evidence is this?

A researcher was interested in examining the effects of the amount of caffeine intake during the day on the quality of participants’ sleep quality of 50 male, sophomores at USF who were randomly selected. Quality of sleep was measured using an actigraphy and amount of caffeine was measured using a self-reported food diary. What is the independent variable?

In a Normal Distribution, what would be your percentile rank, if you were 2 standard deviations below the mean?  

Match the following concepts and definitions to the terms they best match below:

Which of the following nitrogenous bases are found in DNA BUT NOT RNA?

The process by which proteins are made from mRNA is called __________________.

Triplet base codes found in mRNA that code for different amino acids during protein synthesis are called ___________________.