List of items used for measuring the quantity and quality of parent–child communication, self-concept, and academic performance (Najarian et al., 2009).
| Construct | Description | Items in the ECLS-K dataset | Scale of measurement |
| Quantity of parent–child communication | Four items from parents’ report assessing the frequency of parent–child conversations in a month | 1. P7OFTTLK: “How often do you talk with your child about his/her day at school?” 2. P7TLKFRD: “How often do you talk with your child about his/her friends? 3. P7TLKGRD: “How often do you talk with your child about his/her grades?” 4. P7TLKSCH: “How often do you talk with your child about his/her school activities?” |
1 = not at all, 4 = every day |
| Quality of parent–child communication | Four items from parents’ report that reflected the supportive nature of parents in their conversations with their children | 1. P7GETALN: “You get along well with your child.” 2. P7DECIDE: “You and your child make decisions about his/her life together.” 3. P7NOUNDR: “You just do not understand him/her.” (recode) 4. P7TRUST: “You feel you can really trust him/her.” |
1 = never, 4 = always |
| Children’s self-concept | Seven items from children’s report on their level of agreement on certain perceptions about themselves | 1. C7FLGOOD: “I feel good about myself.” 2. C7WORTH: “I feel I am a person of worth, the equal of other people.” 3. C7ABLE: “I am able to do things as well as most other people.” 4. C7SATISF: “On the whole, I am satisfied with myself.” 5. C7USELES: “I certainly feel useless at times.” (recode) 6. C7NOPRD: “I feel I do not have much to be proud of.” (recode) 7. C7NOGOOD: “At times I think I am no good at all.” (recode) |
1 = strongly disagree, 4 = strongly agree |
| Academic performance | Standardized test scores administrated by the ECLS-K researchers that assessed the students’ academic ability in reading, math, and science, collected during the spring of the student’s eighth-grade year | 1. C7R4RSCL: reading IRT scale score. 2. C7R4MSCL: math IRT scale score. 3. C7R2SSCL: science IRT scale score. |
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