• Medical researchers used attest to compare cancer patients' recovery rates during time spent in the hospitals versus time spent in their own home to decide the best place for patients to be during recovery. Their study measured all patients' white blood cell counts while they were in the hospital and then again while all patients were at home. What type of design is this?

within-groups

single-subjects

independent samples

between-groups

• Martha is a cognitive psychologist who is studying reading times for stories that contain either consistent or inconsistent information. She conducts a study with 32 people and concludes that reading times are 8.7 seconds slower on average when information in a story is inconsistent. The statistic of 8.7 seconds represent a(n):

standard deviation

point estimate

interval estimate

population parameter

• Which of the following is NOT true about a 95% confidence interval?

It is a type of interval estimate for a population parameter.

We'll obtain the same confidence interval if we repeat the exact same study (same sample size, same variables, same sampling procedure) with different participants.

Over repeated sampling, it will contain the population parameter 95% of the time.

It provides a range of plausible values for a population parameter.

• Twenty-two students were assessed on a mindfulness measure both before and after completing a semester-long meditative yoga class. The criticaltvalues for a two-tailed paired-samples test based on their data, with aplevel of 0.05, are:

-2.080 and 2.080

-1.721 and 1.721

-1.717 and 1.717

-2.074 and 2.074