PSY 320 Midterm Quiz

Name this Distribution

Continuous variables go on infinitely, but cannot be divided.

The box in a boxplot captures the middle 75% of values.

Which of these options is a gestalt tendency that explains why things seem connected?

According to CLT, as sample size increases, our standard error of the mean decreases.

The mean and the range are the two parameters needed to generate a normal curve.

Name this Distribution

If a confidence interval for a population mean does not contains the original population mean, we reject the null.

Sample or Population: I am interesting in studying the incomes of all students in our class, and survey all of them.

If you have a smaller population standard deviation, your sample mean is less representative of your sample

If I reject the null hypothesis when it is true, what is the outcome that occurs?

Name that measurement: color of gummy bear

Which of the following is the most frequent value in your dataset?

Which of the following is described as the "average distance of each point from the mean"?

A bar chart is ideal for plotting the means of a continuous variable for two or more groups.

Name this graph!

Which is the following is an example of inferential statistics?

One tailed tests are standard in psychology, because people are complicated.

If I intentionally grab only orange gummy bears from my tub, this is an example of random sampling

Name this distribution

Random Sampling requires all people in the sample to have an equal probability of being drawn.

Increasing your sample size typically leads to increases in variability.

Interval and Ratio variables are considered to be discrete, categorical variables.

The Gestalt principle of continuity addresses when shapes that are aligned but not connected are seen as interconnected

This distirbution is leptokurtic

What is the standard alpha level in psychology?

If a retain the null hypothesis when it is true, what is the outcome?

According to CLT, as the size of your sample increases, the sample mean becomes a better estimate of the population mean

Sample or population: Dr. Rosh surveys 50 people from the 5000 person Flat Earther Society.

Name that Measure: Finishing 1st, 2nd or 3rd in an art contest

What percent of the data is contained within 1 standard deviation of the mean for a standard normal distribution?

2.21 is a standard critical value for statistics testing in psychology.

Your sample size does not influence the standard error of the mean.

Histograms and boxplots are ideal plots for visualizing the shape of your distribution.

Which of the following is the 50th percentile or middle value?