Match the measurement scales in Set I with the examples in Set II. Set I Set II
(a) Nominal scale
(b) Ordinal scale
(c) Interval scale
(d) Ratio scale
(i) Ranking students’ performances in musical events
(ii) Spelling-test scaled scores defined with equal units and an arbitrary zero
(iii) Classifying students by the type of co-curricular activity they participate in
(iv) Students’ writing speed in words per minute
(a) - (iii), (b) - (i), (c) - (ii), (d) - (iv)
Activity categories are nominal (a–iii); ordered performance ratings are ordinal (b–i); scaled scores with equal units and an arbitrary zero are interval (c–ii); and writing speed has a meaningful zero and ratios (d–iv). Hence a–iii, b–i, c–ii, d–iv. Raw counts of correctly spelled words should not be confused with the specified interval-scale scores.
Type II error in hypothesis testing is:
Which level of measurement is least used in educational psychology?
In List I types of variables are given and in List II correlation coefficients related to them are given. Match List I and List II and choose the correct answer from the code given below.
List I (Types of variable) | List II (Correlation coefficient) | ||
| a) | Both variables continuous | i) | Biserial |
| b) | Both with ordinal measure | ii) | Pearson's 'r' |
| c) | Both with artificial dichotomy | iii) | Contingency coefficient |
| d) | One continuous and other with artificial dichotomy | iv) | Spearman's rho |
| e) | Two or more categories | v) | Tetrachoric 'r' |
| vi) | Point-Biserial | ||
For scores drawn from a continuous reference distribution, what is the shape of the distribution of their percentile ranks?
Below are given two sets of statistical tests of significance. Set - I lists the parametric tests while Set - II provides their non-parametric counterparts. Match the two and give your answer by selecting from the given code :
| Set - I (Parametric Tests) | Set - II (Non-parametric Tests) |
| (a) Independent t-test | (i) Chi-square test |
| (b) Dependent t-test | (ii) Kruskal Wallis H-test |
| (c) ANOVA F-test | (iii) Mann Whitney ‘U’ test |
| (iv) Willeoxon T-test |