Statistics

Numerous studies have found that males report higher self-esteem than females, especially for adolescents (Kling, Hyde, Showers, & Buswell, 1999). […]

A researcher is comparing the effectiveness of two sets of instructions for assembling a child’s bike. A sample of eight

In 1974, Loftus and Palmer conducted a classic study demonstrating how the language used to ask a question can influence

Functional foods are those containing nutritional supplements in addition to natural nutrients. Examples include orange juice with calcium and eggs

For each of the following, assume that the two samples are selected from populations with equal means and calculate how

Hallam, Price, and Katsarou (2002) investigated the influence of background noise on classroom performance for children aged 10 to 12.

For each of the following, calculate the pooled variance and the estimated standard error for the sample mean difference a.

Steven Schmidt (1994) conducted a series of experiments examining the effects of humor on memory. In one study, participants were

One sample has SS = 48 and a second sample has SS = 32. a. If n = 5 for

In a study examining overweight and obese college football players, Mathews and Wagner (2008) found that on average both offensive