Duplicate of Final Exam - Research II

T or F: A negative correlation indicates a weak relationship

Types of Evaluation

Indicates the average variability of the individual measure from the mean

99% of the measures will fall within ___ standard deviation(s)

Measures of Central Tendency:

How is probability expressed?

A range of scores with specific boundaries, that should contain the population mean

Which is not a level of Statistical Analysis?

survey method where decisions on items are based on consensus of a panel

Which is an example of a symmetrical distribution?

The systematic acquisition and assessment of info to provide useful feedback about some object

Facilitate a program’s development, implementation and improvement by examining its outcomes

Which is not an acceptable presentation of frequency?

technique used to characterize attitudes opinions or judgments of individuals; comparative rank

Degrees of freedom are determined by:

Measure of Variability:

Describes or summarizes some of the characteristics of the distribution

–Curve high on the right, tail to the left, few low values

Pearson product-moment correlation

Used more frequently with nominal or ordinal data

Which is the more conservative t test?

Tools for decision making in relation to the hypotheses; how the results may be generalized

Evaluates the linear relationship between two measured variables

Used to strengthen or improve the program being evaluated

Determines group performance by measuring skills level on a variable of interest

If the null is rejected it means

What is a disadvantage of secondary analysis?

95% of the measures will fall within ___ standard deviation(s)

What are inferential statistics based on?

Design, implement and evaluate interventions to increase occ. perf. in accordance with the OTPF

Ignoring an effective treatment because the difference is thought to be due to chance

Goal of Program Evaluation:

T or F: Correlations display an increase in one variable causing the increase in another

Which influences statistical power?

the % of variance in one variable that is accounted for by the variance in other variable

Used more frequently with ratio data

Conventional level of significance defined as the maximal acceptable risk of a Type I Error

Usually made public, aimed towards potential consumers

Can you ever accept the null hypothesis?

The likelihood that any one event will occur given all the possible outcomes

Thinking a difference occurred when it was really due to chance

–Curve high on the left, tail to the right, few high values

68% of the measures will fall within ___ standard deviation(s)

How is evaluation different than research?

Difference between the highest and lowest values

The probability that a test will lead to rejection of the null

Tendency for the sample values to differ from the population values, occurs by chance

Which is NOT an advantage of Secondary Analysis?

Should you set your significance level before or after analyzing your data?

Precedes other levels of analysis

Transformation of items on an ordinal scale to an interval scale

Spearman rank-order correlation

Variability of the individual cases away from the mean; the mean of the sum of the squares

Concerned with the interpretation of data

Describes a position of the measure within a distribution

Which has a larger critical region?

The observed difference between two groups is due to chance

Which two events are NOT mutually exclusive?

The smaller the number in the sample, the more the distribution approximates the normal curve

Used to determine the "critical region" where the null hypothesis can be rejected